https://community.element14.com/products/manufacturers/panasonic/Equipping, enabling, inspiring: About Panasonic Industry Europe A common purpose: as part of Panasonic Corporation’s global business, people at Panasonic Industry strive for continuous innovation and share the company’s mission and visionen-USTelligent Community 12https://community.element14.com/products/manufacturers/panasonic/b/blog/posts/what-is-a-domain-control-unit-dcuTue, 03 Mar 2026 01:14:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:7bf41088-564a-4cdf-9fb9-90537ff084f4riyo@panasonicAs the automotive industry accelerates toward higher‑level autonomous driving, the Domain Control Unit (DCU) has become a central element of next‑generation vehicle architecture. DCUs consolidate data from multiple sensors, make real‑time decisions, and coordinate critical control functions—requiring components that deliver high current capability, low loss, miniaturization, and excellent EMC robustness . This technical guide provides an engineer‑friendly explanation of DCU roles, system configurations, and design challenges—and showcases how Panasonic Industry components support reliable, high‑performance DCU development. If you're designing automotive ECUs, power modules, or sensing interfaces, this guide will help you choose optimal Panasonic devices for your next project. 1. ADAS vs. AD: Why DCUs Are Increasing Rapidly Advanced Driver Assistance Systems (ADAS) support the human driver, while Autonomous Driving (AD) shifts responsibility to the vehicle itself. According to SAE levels: Level 0–2: Human‑driven with partial assistance Level 3–5: Vehicle executes most or all driving tasks As vehicles progress into Level 3 and beyond, the sensor count and data throughput grow dramatically. This makes centralized processing , fast communication , and robust power management more critical—hence the rapid adoption of DCUs. Level Name Driven by Driving area Remarks 0 No driving automation Human driver － The human performs all driving tasks 1 Driving assistance Human driver Limited Provides driving assistance in part through tasks such as monitoring the vehicle's perimeter 2 Partial driving automation Human driver Limited "Hands off" - Automates driving under specific conditions 3 Conditional driving automation Vehicle Limited "Eyes off" - Automates driving under specific conditions 4 Advanced driving automation Vehicle Limited "Brain off" - Automates driving under specific conditions 5 Full driving automation Vehicle No limitations The vehicle performs all driving tasks under all conditions Table 1 Definition of autonomous driving by level 2. Core System Blocks Required for ADAS / AD A complete sensing‑to‑control chain typically includes: Sensor ECU Cameras, RADAR, LiDAR, and ultrasonic sensors gather environmental data. Main ECU / DCU Performs high‑speed data fusion, perception, and decision‑making. Actuator ECU Controls braking, steering, powertrain, and other vehicle dynamics. A DCU sits at the heart of this system, enabling seamless communication between domains and ensuring reliable autonomous operation. Figure 1 Overall system flow (from sensing to operation) 3. Domain vs. Zone Architecture—Where DCUs Fit As OEMs evolve their E/E architectures, two major approaches are used: Domain Type (Distributed) Each function (ADAS/AD, powertrain, body, cockpit, etc.) has its own DCU Processing is performed inside each domain Domains communicate via gateway ECUs Ideal for: Level 2 and Level 2+ applications Zone Type (Centralized) ECUs grouped by vehicle location (front, rear, cabin) A central computer consolidates all zone‑level inputs Supports massive data throughput and high compute requirements Ideal for: Level 3–5 and next‑generation EV platforms Configuration Connection Network Domain type Consolidates domain-specific ECUs for each category (domain) All domains are connected via the Gateway Data processing is performed in each domain-specific ECU Common network standards are used for communication between sensors and domains Common network standards are used for communication between the domains and Gateway Zone type Consolidates ECUs of different categories in each zone such as the front and rear of the vehicle Consolidates data from each zone to the Central Computer Integrates and concentrates data processing in the Central Computer There is a mixture of different network standards for communication between sensors and zones Common network standards are used for communication between the zones and Central Computer 4. What Exactly Does a DCU Do? A DCU integrates multiple functions: High‑speed communication with sensors and other ECUs Data fusion and environment recognition using SoCs and dedicated processors Memory management (Flash, DDR) for algorithms and sensor data Power management through multiple isolated DC/DC converters Command execution to actuators and cooperating domains This makes DCUs one of the most component‑dense areas in modern automotive electronics. 5. Component Requirements for High‑Performance DCUs DCUs demand components with: High current tolerance for heavy processing loads Low loss to minimize thermal buildup High‑frequency capability for switching and communication Miniaturization for dense board layouts Highly stable voltage characteristics Panasonic Industry specifically develops components aimed at fulfilling these stringent requirements. 6. Inside the DCU: Key Circuits and Recommended Components 6‑1: High‑Speed Transceiver Interfaces (CAN, Ethernet, LVDS) During communication, DCUs are exposed to ESD surges and noise. To protect transceiver ICs and maintain signal quality, Panasonic offers: ① Chip Varistors Wide capacitance range (8–250 pF) Ideal for low‑ to mid‑speed communication lines ② ESD Suppressors Ultra‑low capacitance (0.1 pF) Perfect for high‑speed interfaces such as automotive Ethernet ▶ Explore products: Chip Varistor: Farnell® UK ESD Suppressor: Farnell® UK Figure 4 Components used in a transceiver IF 6‑2: Power Delivery—DC/DC Converter Architectures DCUs require multiple supply rails to power SoCs, memory, MCUs, and transceivers. Panasonic components are essential for each converter block. Figure 3 DCU system configuration Three DC/DC Converter Types Type Typical Use Characteristics A (Multiphase) SoCs / FPGAs Very high current, polymer capacitors + MLCCs B DDR memory High ripple current, large‑capacitance smoothing C General rails Standard DC/DC topology Key Panasonic Components for DC/DC Converters ① Conductive Polymer Hybrid Aluminum Electrolytic Capacitors High capacitance, low ESR Excellent high‑frequency performance for noise suppression Supports miniaturization and high‑current operation ▶ Farnell® UK Figure 6 Components used in a DC/DC converter ② Automotive Power Inductors Low loss thanks to metallic magnetic materials High current capability Optimized for high‑frequency switching ▶ ETQP Inductors | Farnell® UK ③ High‑Precision Chip Resistors Low TCR and low resistance tolerance Suitable for voltage sensing feedback loops in converters ▶ ± 0.05% PANASONIC Chip SMD Resistors | Farnell® UK 7. Summary: Panasonic Components Accelerate DCU Innovation As autonomous driving advances, DCUs must handle increasing data loads, higher currents, and tighter power requirements. Panasonic Industry provides an extensive lineup of components engineered specifically for these challenges: Component Type Key Features Conductive Polymer Hybrid Capacitors Low ESR, high ripple tolerance Automotive Power Inductors High current, low loss High‑Precision Chip Resistors High accuracy, high thermal reliability Chip Varistors ESD protection for various communication speeds ESD Suppressors Ultra‑low capacitance for high‑speed lines These components support miniaturization , efficiency , reliability , and high‑speed performance —all essential for next‑generation DCU design. Ready to Start Your DCU Design? If you're developing automotive ECUs, ADAS platforms, or central computing modules, explore Panasonic components on Farnell: Panasonic's advanced passive components can help you enhance reliability, reduce board size, and meet the strict demands of modern autonomous driving systems.Miniaturization Solutionspolymer capacitorsPower Inductorsautonomous drivingFunctional Safety ComponentsIn‑Vehicle Networkspanasonic industryAutomotive Reliabilityautomotive electronicshigh precision resistorsHigh‑Frequency SwitchingHigh Current DesignDC/DC ConverterLow Loss Componentszonal architectureHybrid Aluminum Capacitorsesd protectionadasNoise SuppressionVehicle Central ComputingDomain Controller DesignHigh‑Speed CommunicationsEMI/ESD ProtectionDomain Control Unit (DCU)Automotive Power SupplyECU Power Managementhttps://community.element14.com/products/manufacturers/panasonic/b/blog/posts/cameras-used-in-adas-and-autonomous-driving-systemsWed, 18 Feb 2026 01:01:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:fe87ecb9-267d-4bba-9636-89650281bd76riyo@panasonic1. What Types of Cameras Are Used in ADAS and AD Systems? Automotive cameras are essential sensing devices that help vehicles interpret their surroundings. In both Advanced Driver Assistance Systems (ADAS) and Autonomous Driving (AD), cameras work alongside radar, LiDAR, and ultrasonic sensors to build a multi‑directional understanding of the environment. Modern vehicles typically integrate three primary camera categories : • Sensing Cameras (Forward‑Facing) Mounted near the top of the windshield, these cameras monitor a wide forward area to support key safety functions such as lane keeping, lane changing, traffic sign detection, and automatic emergency braking. • Surround View Cameras Installed at the front, rear, and both sides of the vehicle body, these cameras capture near‑range images to create a 360° view. They support parking assist and low‑speed maneuvering. • Driver Monitoring Cameras Positioned near the instrument cluster, these cameras track the driver’s condition, including eye closure, gaze direction, and signs of drowsiness or inattention. Each camera type serves different operational goals, yet all contribute to safer, more automated driving experiences. 2. Uses and Functions of Each Camera Type Different ADAS/AD features depend on specific camera modules. Below is an overview of their major applications: Sensing Cameras Used for decision‑making and control actions: Lane Keep Assist (LKA) Lane Change Assist (LCA) Autonomous Emergency Braking (AEB) Forward collision avoidance Traffic sign recognition These cameras play a central role in higher‑level AD systems where precise object detection and classification are essential. Surround View Cameras Primarily used for: Parking assistance Close‑range obstacle detection Surround visualization in the cockpit display These cameras help drivers—and autonomous systems—understand vehicle positioning in tight spaces. Driver Monitoring Cameras (DMS) Used for: Assessing the driver’s alertness Detecting fatigue or inattention Monitoring head pose and gaze direction As global regulations evolve, DMS is becoming mandatory in many markets. 3. Internal Configuration of Automotive Cameras Although sensing, surround view, and driver monitoring cameras differ in purpose, their internal architectures share common building blocks. Sensing Cameras & Driver Monitoring Cameras These modules typically include: Image Sensor – Converts incoming light into electrical signals. SoC (System-on-Chip) – Performs image analysis, object recognition, and high-speed processing. MCU – Issues control commands to external ECUs. Transceiver – Handles data communication with ADAS/AD ECUs. DDR Memory – Provides high‑speed data buffering. Flash Memory – Stores firmware and calibration data. Surround View Cameras This type uses multiple image sensors , each positioned around the vehicle. Captured images are transferred to a Surround View ECU , where an FPGA or high‑performance SoC synthesizes them into a single omnidirectional view. Because of the volume of image data involved, communication bandwidth and processing speed are especially critical. 4. Market Trends and Camera Module Requirements With increasing vehicle production and the rapid evolution of autonomous driving, camera units are expected to grow in both quantity and capability. Future camera modules are increasingly driven by three major performance demands: 4.1 Higher Power Capability Rising image sensor resolutions Higher dynamic range performance More advanced SoCs requiring substantial computational power These factors raise internal losses and thermal loads, demanding high‑current, low‑loss components. 4.2 Higher‑Speed Data Transmission As image data volumes grow, communication interfaces require: High‑frequency performance Low‑parasitic components High‑speed EMI/ESD protection Automotive Ethernet and other high‑rate protocols rely heavily on robust passive components. 4.3 Miniaturization and Weight Reduction Compact camera modules reduce vehicle weight, simplify mounting, and enhance design flexibility. Achieving this requires smaller yet more capable capacitors, inductors, and resistors. 5. Circuit Configuration of Each Camera Module The following components constitute the core circuitry of sensing and driver monitoring cameras: • Image Sensor Captures visual data and converts light into electrical signals. • SoC Processes images, performs recognition algorithms, and generates control outputs. • MCU Handles operational commands and coordinates with system‑level ECUs. • Transceiver (High‑ and Low‑Speed) Supports communication with other vehicle systems. • DDR Memory Acts as a buffer for real‑time image processing. • Flash Memory Stores firmware, system configuration, and calibration parameters. • DC/DC Converters Provide regulated voltages for image sensors, memory, SoCs, and communication ICs. These power stages must address noise suppression, fast transient response, and minimal ripple to prevent image degradation. Surround view camera A camera ECU and surround view ECU are used to make up a surround view camera. Unlike other types of camera modules, multiple camera units are mounted on a vehicle to make up the surround view camera. Therefore, transceiver circuits must communicate larger amounts of data. An FPGA is used to integrate the acquired image data into one, where image processing is performed at high speed. Other configurations are the same as those of sensing cameras and driver monitoring cameras. 6. Specific Component Examples and Their Applications Both DC/DC converter circuits and transceiver interfaces rely heavily on high‑performance passive components. Panasonic’s automotive‑grade devices play key roles in achieving reliable and compact designs. 6.1 DC/DC Converter Components DC/DC converters commonly integrate: Conductive Polymer Hybrid Aluminum Electrolytic Capacitors Ideal for: Noise reduction Smoothing output ripple High‑frequency filtering Key benefits: High capacitance with low ESR Excellent ripple current handling Stable performance across wide frequencies Automotive Power Inductors Used for: Efficient voltage conversion High‑current power stages Key benefits: Metal composite materials for low core loss Excellent current handling Reduced AC resistance at high switching frequencies High‑Precision Chip Resistors Used for: Voltage measurement and sensing Feedback control accuracy Key benefits: Thin‑film structures with low temperature coefficients Accurate resistance values for stable regulation Components used in a DC/DC converter 6.2 Transceiver Interface Components Transceiver circuits often face ESD and EMI challenges because they interact directly with external communication lines. Chip Varistors Used for: ESD suppression Noise filtering on CAN, Ethernet, and LVDS lines Key benefits: Wide capacitance range (suitable for various speeds) Effective noise absorption without harming signal quality ESD Suppressors Used for: Protecting high‑speed interfaces Ensuring signal integrity in fast communication links Key benefits: Ultra‑low capacitance (~0.1 pF range) Ideal for high‑speed automotive Ethernet Panasonic’s protective components provide robust safeguarding for critical transceiver ICs. Components used in a transceiver IF Components used in a transceiver IF 7. Panasonic Product Lineup and Key Advantages As camera systems advance, automotive components must deliver: High current capability Low loss and reduced heat generation High‑frequency operation Compact size Long‑term reliability Precision measurement capability Panasonic Industry provides a wide portfolio tailored to these demanding requirements: • Conductive Polymer Hybrid Aluminum Electrolytic Capacitors Low ESR, high ripple durability Ideal for miniaturized high‑current designs • Automotive Power Inductors Low loss at high frequencies Stable performance for compact power stages • High‑Precision Chip Resistors Tight tolerance, high heat resistance • Chip Varistors Wide capacitance options for CAN to Ethernet • ESD Suppressors Ultra‑low capacitance for high‑speed digital lines These components are readily available through Farnell, enabling engineers to design robust, next‑generation ADAS camera modules.Aluminum Electrolytic Capacitorspanasonic industrycapacitorsSMD Componentspanasonicpassive componentsSurface Mount Capacitorselectronic componentshttps://community.element14.com/products/manufacturers/panasonic/b/blog/posts/lidar-technology-in-autonomous-driving-a-practical-guide-to-key-componentsTue, 03 Feb 2026 01:47:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:dcbf5ab0-d4e7-4897-b52f-6edc6501cd45riyo@panasonic1. What Is LiDAR? LiDAR (Light Detection and Ranging) is a sensing technology that measures the distance to objects by emitting laser pulses and capturing the reflected light. The combination of emission direction and time‑of‑flight enables the generation of a high‑resolution 3D point cloud, which is widely used in ADAS and autonomous driving systems. As vehicle automation advances, the adoption of LiDAR is expected to grow steadily. Optical element Optical axis varying method Type Scanning LD, PD Mechanical method Rotation by a motor A number of LDs and PDs are rotated by a motor to scan the whole area. Polygon mirror Respective optical axes of a single LD and a single PD are varied by a polygon mirror in scanning. Non-mechanical method (solid-state) MEMS mirror Respective optical axes of a single LD and a single PD are varied by a MEMS mirror in scanning. Phased array Respective optical axes of a single LD and a single PD are varied by a waveguide in scanning. Flash Light from a light source, such as an LED, is emitted over a wide area, and reflected light is collectively scanned by an array of PDs. 2. How LiDAR Measures Distance and Recognizes Objects Distance Measurement A laser diode emits a pulse toward an object. A photodiode receives the reflected light. The distance is determined from the time between emission and reception. Object Recognition By repeatedly scanning in multiple directions, LiDAR creates a point cloud. This data is used to: Identify obstacles Build dynamic 3D maps Estimate and correct the vehicle’s position in real time 3. Market Trends and Technical Requirements As autonomous driving levels increase, LiDAR systems must meet three key requirements: Requirement Reason Higher power Higher‑resolution sensing increases CPU load and power demands. Faster communication High‑frequency and high‑speed data transfer is essential to process large point clouds. Smaller size & lighter weight Vehicles incorporate more sensors, requiring miniaturized components. 4. LiDAR System Overview A LiDAR unit typically consists of: Laser Diode (LD) : Emits high‑speed laser pulses Photodiode (PD) : Converts received light into electrical signals Amplifier for the PD output FPGA : Handles high‑speed data processing MCU : Controls system operation Transceiver : CAN/Ethernet communication DDR & Flash Memory DC/DC Converters : Provide necessary voltage rails 5. Key Circuits and Recommended Components 5‑1. DC/DC Converter Circuit High‑performance LiDAR requires stable, low‑noise power. Recommended Components Function Component Key Features Noise filtering & smoothing Conductive polymer hybrid aluminum electrolytic capacitor Low ESR, high ripple tolerance, excellent high‑frequency behavior Voltage conversion Automotive power inductor High current capability, low loss, low ACR Voltage measurement High‑precision chip resistor Low resistance tolerance, low TCR for accurate control 5‑2. Transceiver Interface (CAN / Ethernet) Because communication lines are exposed to ESD, protection devices are critical. Recommended Components Chip varistor ESD suppressor (ultra‑low capacitance) Key points: Chip varistors cover a wide capacitance range (8–250 pF) for low → high‑speed communication ESD suppressors (0.1 pF) are optimal for high‑speed interfaces 5‑3. Photodiode Light‑Receiving Circuit Reflected laser light is weak and must be amplified with high precision. Recommended Components High‑precision chip resistor → Sets amplifier gain NTC thermistor → Temperature compensation Why they matter: Low‑TCR thin‑film resistors ensure stable gain High‑reliability thermistors maintain accurate sensing across temperatures 5‑4. Laser Diode Irradiation Circuit A GaN FET is typically used to deliver high‑speed, high‑power pulses. Recommended Components Small, high‑power chip resistor (gate resistor) Key advantage: Original resistance pattern and electrode design support high‑power switching while enabling device miniaturization 6. Conclusion As autonomous vehicles adopt more LiDAR units, the demand for electronic components offering: Low loss High current capability High‑frequency performance Compact size & high reliability will continue to grow. Panasonic Industry offers a broad portfolio—including hybrid capacitors, automotive inductors, high‑precision resistors, varistors, ESD suppressors, and thermistors—that aligns well with these requirements. Component Feature Large current Low loss High frequency Small size High precision Conductive polymer hybrid aluminum electrolytic capacitor Low ESR High reliability ✔ ✔ ✔ ✔ Automotive power inductor Large current, low loss High reliability ✔ ✔ ✔ ✔ Chip resistor (high-precision chip resistor) Chip resistor (small and high-power chip resistor) High precision, high resistance to heat ✔ ✔ Chip varistor Small and light ✔ ESD suppressor Low capacitance Ultrafast data I/F ✔ ✔ NTC thermistor (chip type) Small, high resistance to heat ✔ ✔DDR memoryGaN FETEV / HEV Componentsautonomous drivingautomotive inductorsEMC / ESD ProtectionHigh-Temperature ComponentsHigh-Speed CommunicationESD SuppressorsAutomotive Reliabilityautomotive electronicsVehicle Sensorslidarhigh precision resistorsPoint CloudDC/DC ConverterLaser Diode (LD)flash memoryadashybrid capacitorsSensor Technologymcuvaristorspower managementsignal processingPhotodiode (PD)3D SensingthermistorsAnalog Front-Endhttps://community.element14.com/products/manufacturers/panasonic/b/blog/posts/why-terminal-temperature-based-ratings-matter-in-modern-electronics-designMon, 26 Jan 2026 06:14:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:d4e9eb96-48dd-4396-a133-6b8cc519d0d2riyo@panasonicA Practical Guide to Panasonic Industry Chip Resistors As electronic devices continue to shrink while delivering ever-greater performance, thermal design has become one of the most critical—and often underestimated—challenges in circuit development. Highly integrated ICs and densely packed surface‑mount components generate more heat than ever before, placing new demands on designers tasked with ensuring long‑term reliability. To address these challenges, Panasonic Industry promotes a design approach that is rapidly becoming essential in advanced PCB development: terminal‑temperature‑based power rating . This technique provides far more accurate guidance than traditional ambient‑temperature‑based ratings—especially for today’s compact SMD resistors. In this article, we explain why terminal temperature matters, how to measure it correctly, how international standards (including JEITA) are evolving, and how Panasonic’s chip resistors can help ensure reliable, thermally sound circuit performance. 1. From Leaded Components to SMD: Why Thermal Behavior Has Changed Historically, through‑hole (leaded) resistors dissipated most of their heat—up to 90%—directly into the surrounding air. Their rated power was therefore determined with ambient temperature as the reference point . Today’s electronics, however, rely heavily on surface‑mount resistors , which behave very differently: Leaded Resistors Large surface area → excellent heat dissipation through convection and radiation Minimal heat transfer to the PCB Ambient temperature is the dominant variable Heat effect image of resistor with leads With thin and long lead terminals, the component conducts (releases) a small amount of heat to the mounting board. The large surface area of the component allows for great convection, radiation, and dissipation of heat. Surface‑Mount Chip Resistors Very small surface area → limited convection and radiation Large solder‑pad contact area → significant heat conduction into the PCB Strongly affected by neighboring components’ heat Because SMD resistors experience heat not only from their own power dissipation but also from the board, relying solely on ambient temperature can lead to significant errors in power‑rating calculations. Heat effect image of surface-mounted component Having connection terminals with a large contact area, the component conducts (releases) a large amount of heat to the mounting board. The small surface area of the component lessens the ability of convection, radiation, and dissipation of heat. 2. Why Terminal‑Temperature‑Based Specification Is Becoming Essential To solve this mismatch, manufacturers—including Panasonic Industry—have adopted a more precise method: measuring power rating based on terminal temperature rather than ambient air temperature. This approach allows engineers to: Quantify the exact thermal load applied to a resistor during operation Reduce design uncertainty caused by complex heat flow within a dense PCB Improve prediction accuracy for component lifetime and failure risk The trend has grown strong enough that industry organizations such as JEITA have begun issuing study reports and guidance documents, including RCR‑2114: Study for the derating curve of fixed surface‑mount resistors , which Panasonic follows when defining its product specifications. 3. Measuring Terminal Temperature: Methods and Key Considerations Terminal temperature can be measured using two common tools: Method Advantages Limitations Thermocouple High accuracy, direct measurement Requires physical contact; heat conduction through wires may distort readings Infrared thermography Contactless, easy to use, wide temperature range Cannot measure through glass; requires high surface emissivity (may need black coating) Because many practical evaluations occur at the prototype stage and involve very small components, thermocouples are the most commonly used tool . 3.1 Choosing the Right Thermocouple Thermocouples vary in heat conductivity and measurement characteristics: K‑type Ideal for chip resistors due to low heat conductivity and minimal thermal interference. T‑type Highly accurate but conducts heat more easily, which can artificially lower the reading on small components. For reliable results, selecting a thermocouple with thin wires and low thermal mass is essential. 3.2 How to Prepare and Attach a Thermocouple Correctly To ensure accurate readings: Properly weld the wire tips Twisting or soldering the wires together is not enough Use spot‑welding to form a small, stable junction Avoid oversized or crossed wire tips An oversized joint or a stray wire can act as a heat sink This causes temperature readings to fluctuate or drop artificially Attach precisely to the center of the solder fillet Placing the junction near the edge or outside of the fillet compromises accuracy The thermocouple must be exactly at the intended thermal reference point Panasonic’s evaluation examples emphasize correct positioning, as shown in their measurement diagrams. 3.3 Sources of Measurement Error Even when the thermocouple is attached correctly, two main factors may introduce errors: Lot‑to‑lot inconsistency in the thermocouple’s electromotive characteristics Voltage measurement error in the data logger (channel‑to‑channel variation) Engineers should always account for these factors when interpreting measurement results. 4. Selecting Components Based on Terminal‑Temperature Rating Panasonic Industry provides both ambient‑temperature‑based and terminal‑temperature‑based ratings in many resistor datasheets. A sample from the ERJPA3 (0603) series illustrates how both specifications coexist: Ambient‑Temperature‑Based Derating Example 105 °C → 100% rated power 135 °C → 40% rated power Terminal‑Temperature‑Based Derating Example 130 °C → 100% rated power 135 °C → 80% rated power In cases where both ratings are listed and the design environment is complex (high density, high heat flow), Panasonic recommends prioritizing the terminal‑temperature‑based rating for greater design accuracy. 5. Why This Matters for Today’s Designers As electronics continue to evolve toward higher power density and smaller footprints, thermal reliability becomes a determining factor in product lifespan and performance. Terminal temperature offers a more reliable metric than ambient conditions, especially for SMD resistors mounted on densely populated PCBs. Key takeaways: SMD resistors experience significantly more board‑influenced heating than leaded components Terminal‑temperature‑based rating produces more accurate real‑world load calculations Using the correct thermocouple and attachment technique is critical to obtaining reliable data Panasonic Industry provides clear, JEITA‑aligned specifications to support accurate thermal design Explore Panasonic Chip Resistors on Farnell Panasonic Industry offers a broad lineup of high‑reliability chip resistors engineered for stable performance under demanding thermal conditions. Browse Panasonic chip resistors on Element14 ERJ‑P Series – High‑power, high‑reliability thick‑film resistors ERJ‑H Series – High‑precision, low‑TC components for tight‑tolerance design By integrating terminal‑temperature‑based evaluation into your workflow, you’ll achieve more robust circuit designs—and selecting Panasonic’s thermally optimized resistors will help ensure your products perform reliably in even the most demanding applications.panasonic ERJ seriessurface-mount resistor thermal designhigh power chip resistorSMD resistor power ratingterminal temperature ratingpanasonicthermocouple temperature measurementPCB thermal managementJAITA resistor standardresistor derating curvePanasonic Chip Resistorshttps://community.element14.com/products/manufacturers/panasonic/b/blog/posts/advancing-electrolytic-capacitor-technology-achieving-ultra-low-esr-for-high-reliability-applicationsTue, 16 Dec 2025 07:37:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:02dfb338-c3d5-4edd-a91d-d0b0f5e353efriyo@panasonic1. Introduction Electrolytic capacitors remain a trusted choice for engineers due to their high ripple current capability, reliability, and cost-effectiveness. However, as power electronics evolve—especially in automotive and industrial sectors—the demand for low ESR (Equivalent Series Resistance) has become critical for efficiency and stability. 2. What is ESR and Why Does It Matter? ESR represents the resistive component within a capacitor’s equivalent circuit. It influences: Power efficiency : High ESR increases losses and heat generation. Ripple voltage : Low ESR ensures cleaner, stable power for microprocessors. System reliability : Lower ESR extends capacitor life and improves control loop stability. 3. Advantages of Low ESR Capacitors Reduced ripple voltage for stable power delivery. Enhanced energy efficiency and compliance with global standards (ENERGY STAR, EU Code of Conduct). Longer operational life due to minimized internal heating. 4. Panasonic’s Low ESR Solutions Panasonic offers one of the industry’s most comprehensive portfolios of low ESR electrolytic capacitors, available in THT (Through-Hole) and SMD (Surface-Mount) configurations. 4.1 THT Series Highlights FR Series : Ultra-low impedance (as low as 12 mΩ at 100 kHz, 20°C), 10,000-hour life at 105°C. TP Series : High-temperature endurance up to 135°C for 2,000 hours. EE Series : Exceptional ripple current capability, ideal for high-voltage applications. 4.2 SMD Series Highlights FK Series : Broad offering for miniaturized designs, low ESR ideal for high-efficiency systems. FT Series / FP Series : ESR values down to 60 mΩ in compact packages. TCU Series : Automotive-grade, AEC-Q200 qualified, vibration-proof options available. 5. Automotive and Industrial Applications Automotive ECUs : High ripple current handling for DC/DC converters. Industrial Power Supplies : Stable filtering under harsh conditions. Driverless Car Systems : High-temperature and vibration-proof designs for safety-critical electronics. 6. Why Choose Panasonic? Extensive product range for diverse applications. Proven reliability under real-world conditions. Compliance with AEC-Q200 and global efficiency standards. Explore Panasonic’s full range of low ESR electrolytic capacitors on Element14 . PANASONIC Capacitors | Farnell® UKlow ESR capacitorsindustrial equipmentVibration-ProofAEC-Q200 Qualifiedautomotive electronicsLong Lifetimeelectrolytic capacitorsDC/DC ConverterminiaturizationHigh Temperature EnduranceSurface Mount Capacitors (SMD)Driverless Car SystemsPower Supply Filteringlow esrhigh ripple currentenergy efficiencyAluminum CapacitorsThrough-Hole Capacitors (THT)https://community.element14.com/products/manufacturers/panasonic/b/blog/posts/radar-in-adas-and-autonomous-driving-systems-why-it-matters-and-how-panasonic-powers-itMon, 01 Dec 2025 01:46:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:92384dd6-3e29-47e9-86c4-988353ed1f9eriyo@panasonicRadar: The Backbone of Advanced Driver Assistance Radar technology is a critical sensing solution for Advanced Driver Assistance Systems (ADAS) and Autonomous Driving (AD) . By using millimeter-wave radio signals, radar detects objects and obstacles around a vehicle—even in challenging conditions like rain or fog. This capability makes radar indispensable for safe and reliable driving. How Radar Works Radar measures distance by emitting radio waves and analyzing the time it takes for the reflected signal to return. Common automotive radar frequencies include 24 GHz, 77 GHz, and 79 GHz , with 79 GHz expected to dominate due to its superior resolution. Unlike cameras or LiDAR, radar performs well in poor visibility. Cameras excel at color and shape recognition but struggle in bad weather, while LiDAR offers high-resolution 3D imaging but loses accuracy in rain or snow. Radar complements these sensors, creating a robust multi-sensor system for enhanced safety. Market Trends: Why Radar Demand Is Rising With the rise of autonomous vehicles and mandatory safety features like automatic braking, radar adoption is accelerating. Higher frequencies improve detection accuracy but also increase data processing loads, creating new challenges for electronic components. Future radar systems demand: High Power : To handle increased processing loads. Heat Resistance : Preventing performance degradation in compact designs. Compact Size & Lightweight : Essential for modern automotive architectures. Inside a Radar System: Key Components A radar unit consists of: High-Frequency RF Circuit : Handles millimeter-wave transmission and reception. Antennas : For signal transmission and reception. MCU (Microcontroller) : Controls radar operations. Transceiver : Interfaces with external systems via CAN or Ethernet. DC/DC Converter : Regulates voltage for each component. Panasonic Solutions for Radar Systems Panasonic offers cutting-edge components designed for automotive radar applications: DC/DC Converter Components Conductive Polymer Hybrid Aluminum Electrolytic Capacitors High capacitance, low ESR, excellent ripple suppression. Ideal for noise filtering and voltage smoothing. Explore Capacitors → Automotive Power Inductors Low loss, high current capability, optimized for high-frequency switching. Explore Inductors → High-Precision Chip Resistors Thin-film design for accurate voltage measurement and control. Explore Resistors → Transceiver Interface Protection Chip Varistors & ESD Suppressors Protect against electrostatic discharge and noise without compromising signal integrity. Explore Varistors → Why Choose Panasonic for Radar Applications? Panasonic components deliver: High Current Handling Low Loss Performance Compact Size High Precision Reliability in Harsh Conditions As radar technology evolves, Panasonic continues to provide solutions that meet the demands of next-generation ADAS and autonomous driving systems. Panasonic Components for Radar Systems Panasonic offers a wide range of components optimized for radar applications: Component Features Large Current Low Loss Compact Small Size High Precision Hybrid Aluminum Electrolytic Capacitors Low ESR, High Reliability ✔ ✔ ✔ ✔ Automotive Power Inductors High Current, Low Loss ✔ ✔ ✔ ✔ High-Precision & High-Power Chip Resistors High Accuracy, Heat Resistance ✔ ✔ Chip Varistors Compact, Lightweight ✔ Ready to Design Your Radar System? Discover Panasonic’s full lineup of automotive components for radar applications on Panasonic Industry. Empower your ADAS design with components engineered for performance and safety.Automotive Safety SystemsAutomotive Radar Solutionautonomous drivingESD communicationRadar sensorautomotive power inductorobject detectionpanasonic industryautomotive electronicsPanasonic Automotive ComponentsDC/DC ConverterHigh-Frequency ElectronicsLiDAR vs RadarRF Circit Designdistance measurementChip VaristorsadasCAN communicationAutomotive radarhigh precision chip resistorRadar System ArchitectureCompact Automotive DesignAutonomous Vehicle TechnologyConductive Polymer Hybrid CapacitorHigh-Resistant Componentssensor fusionMillimeter-wave technologyhttps://community.element14.com/products/manufacturers/panasonic/b/blog/posts/what-is-an-on-board-charger-obc-in-electric-vehiclesWed, 19 Nov 2025 01:38:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:9c476005-239f-4f9c-abef-b35cc0bc4d29riyo@panasonic— Panasonic’s High-Efficiency AC/DC Conversion System for Faster EV Charging — As electric vehicles (EVs) and plug-in hybrid electric vehicles (PHEVs) become increasingly common, the demand for faster and more efficient battery charging grows. At the heart of this process is the On-Board Charger (OBC) — a critical system that converts AC power from charging stations into DC power suitable for vehicle batteries. In this article, we’ll explore the role of OBCs, their system architecture, and the Panasonic components that enable high-performance, compact, and reliable charging solutions. What Does an On-Board Charger (OBC) Do? An OBC is a power conversion system installed in EVs and PHEVs. It transforms AC power from residential or public charging stations into DC power required by the vehicle’s battery. Most OBCs operate in the 3.6kW to 22kW range, depending on regional standards and vehicle specifications. ⚡ Types of EV Charging ・Normal charging In normal charging, the battery is charged to full. The battery of an EV is charged with AC voltage from a private residents' charging equipment or a public charging station. Generally, charging the battery fully takes about eight hours. In the case of normal charging, the OBC incorporated in the vehicle converts AC voltage into DC voltage applicable to the vehicle battery. ・Quick charging Quick charging is charging to refill the battery in a short time. In quick charging, the charging station supplies DC voltage corresponding to the battery voltage, charging up the vehicle battery in a short time by quickly feeding the battery with large power. Quick charging, in general, takes about 30 minutes to 1 hour to finish, depending on the battery capacity. You will find those chargers for EVs in a lot of expressway rest areas, commercial establishments, etc. Charging Type Power Source Location OBC Usage Charging Time Purpose Normal Charging AC (200V/400V) Home, Office Converts AC to DC ~8 hours Full battery charge Fast Charging DC (direct output) Highways, Commercial Facilities Not used ~30–60 minutes Quick top-up Normal charging relies on the OBC to convert AC to DC, while fast charging bypasses the OBC by supplying DC directly to the battery. Battery Capacity & OBC Output Battery capacity varies by vehicle type (compact, SUV, sports car). OBC output is designed to fully charge the battery within approximately 8 hours, with regional variations in specifications. Market Trends & Component Requirements As EV adoption accelerates, OBCs must evolve to support: Higher output power Faster charging times Smaller battery sizes To meet these demands, electronic components must offer: High voltage tolerance Large current capacity Low power loss High heat resistance Compact design OBC System Architecture The OBC system consists of multiple circuits: Voltage Measurement (Input/Output) – Controls conversion accuracy using high-precision chip resistors. Noise Filters (Input/Output) – Suppress external and internal noise using automotive-grade film capacitors. Full-Wave Rectifier & PFC Circuit – Converts AC to DC and improves efficiency using capacitors and inductors. Voltage Conversion Circuit – Uses transformers and switching elements with noise-suppressing resistors. DC/DC Converter – Powers control circuits using hybrid aluminum electrolytic capacitors and power inductors. Communication Interface – Protects transceiver ICs from ESD using chip varistors. Panasonic Components for OBC Systems Panasonic offers a wide range of components optimized for OBC applications: Component Features High Voltage High Current Low Loss Compact Heat Resistant High Precision Hybrid Aluminum Electrolytic Capacitors Low ESR, High Reliability ✔ ✔ ✔ ✔ ✔ Automotive Power Inductors High Current, Low Loss ✔ ✔ ✔ ✔ High-Precision & High-Power Chip Resistors High Accuracy, Heat Resistance ✔ ✔ ✔ ✔ ✔ Chip Varistors Compact, Lightweight ✔ Automotive Film Capacitors High Reliability ✔ ✔ These components are designed to meet the evolving needs of EV charging systems, ensuring safety, efficiency, and scalability. Explore Panasonic’s OBC Solutions Panasonic’s advanced electronic components are engineered to support the next generation of EVs. Whether you're designing for high power, compact size, or fast charging, our lineup offers the reliability and performance your system demands.EV Battery Managementdesign engineeringEV Charging SystemAutomotive Film Capacitorschip resistorsAC/DC Converterautomotive electronicsPower Factor CorrectionDC/DC ConverterOBCPanasonic InductorsOn-Board ChargerPanasonic ComponentsFast Charging EVpassive componentsElectric Vehicle Power SupplyautomotiveHigh Voltage Componentspower managementEV Charginghybrid aluminum electrolytic capacitorsPanasonic Capacitorshttps://community.element14.com/products/manufacturers/panasonic/f/forum/56384/what-are-the-storage-requirements/231772Mon, 10 Nov 2025 21:25:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:f9e45033-8460-48b2-be8c-6c997754ee64beacon_daveMore like copying each item in the FAQ list into a separate forum entry. https://industrial.panasonic.com/ww/faq/capacitorshttps://community.element14.com/products/manufacturers/panasonic/f/forum/56384/what-are-the-storage-requirements/231771Mon, 10 Nov 2025 20:25:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:a8ff3b68-23be-4fff-87ff-e9248b172033kmikemooIt seems like AI isn't AI-ing - just spewing random snippets of a user manual.https://community.element14.com/products/manufacturers/panasonic/f/forum/56383/what-is-its-failure-mode/231770Mon, 10 Nov 2025 20:20:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:f4aebdf1-de63-4d0b-bc0d-246024bcd0b7kmikemooI feel like I joined a conversation here well after it started.https://community.element14.com/products/manufacturers/panasonic/f/forum/56383/what-is-its-failure-mode/231761Mon, 10 Nov 2025 14:22:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:5cd0a22f-2020-4760-aa94-69543bae2b17michaelkellettPerhaps sometimes it fails to fail at all. MKhttps://community.element14.com/products/manufacturers/panasonic/f/forum/56383/what-is-its-failure-mode/231760Mon, 10 Nov 2025 14:10:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:6140b49f-0bba-4ce1-974e-b42190163e14shabazLooks like a copy from here: https://industrial.panasonic.com/ww/faq/faq0003 However that in itself was originally a bad answer too, because anyone asking that would want more detailed information than, to paraphrase, "open circuit but sometimes short".https://community.element14.com/products/manufacturers/panasonic/f/forum/56383/what-is-its-failure-mode/231758Mon, 10 Nov 2025 13:40:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:1e405cea-2313-4874-8138-d670334cebdbJan Cumps?https://community.element14.com/products/manufacturers/panasonic/f/forum/56384/what-are-the-storage-requirements/231757Mon, 10 Nov 2025 13:19:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:ea1ad151-80a9-4510-9cbe-a6bd33fdd43eJan CumpsThis post feels like it's near year end review and quota need to be met?https://community.element14.com/products/manufacturers/panasonic/f/forum/56384/what-are-the-storage-requirements/231747Mon, 10 Nov 2025 03:53:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:784b8e4b-7690-4ac5-b3b5-546b128edda8shabazThis is a very pointless blog.. are you saying that the documentation should be checked regarding some random product that you do not mention?https://community.element14.com/products/manufacturers/panasonic/f/forum/56382/in-the-case-where-voltage-is-applied-to-a-hybrid-capacitor-does-the-hybrid-capacitor-show-the-same-bias-characteristics-as-a-multi-layer-ceramic-capacitor-mlcc-does/231746Mon, 10 Nov 2025 03:51:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:ecb2e4d2-b22c-4cfc-a316-196de54a2d46shabazHi, This is a very short blog post, and leaves readers feeling wanting more perhaps. It might be more valuable to readers to have many things discussed in a single blog, rather than multiple one-sentence blogs. Wurth do excellent blogs for comparison, here's a Wurth blog on one type of capacitor: SN009: How to Use Supercapacitors? A Brief Guide to the Design-In Processhttps://community.element14.com/products/manufacturers/panasonic/f/forum/56384/what-are-the-storage-requirementsMon, 10 Nov 2025 02:49:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:92812302-1a50-4bad-b308-b885e1b33600riyo@panasonicCheck the details of "Storage" included in the product safety precautions.