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Blog Update on FN Series: Panasonic's latest advancements in Aluminum Electrolytic Capacitors
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  • Author Author: riyo@panasonic
  • Date Created: 28 Mar 2025 11:49 AM Date Created
  • Views 1472 views
  • Likes 8 likes
  • Comments 0 comments
  • Aluminum Electrolytic Capacitors
  • panasonic industry
  • automotive_capacitors
  • capacitors
  • panasonic
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Update on FN Series: Panasonic's latest advancements in Aluminum Electrolytic Capacitors

riyo@panasonic
riyo@panasonic
28 Mar 2025

In the world of passive components, aluminum electrolytic capacitors have been a popular choice due to their impressive capacitance-to-volume ratio, making them ideal for applications where every bit of space counts. They are commonly used for functions like voltage smoothing in rectified AC circuits, noise filtering, and audio frequency amplification. However, in the past decade, polymer and hybrid polymer capacitors have gained traction, boasting advantages such as extended lifespans, higher maximum operating temperatures, and lower equivalent series resistance (ESR). Despite these advancements, many engineers still favor traditional electrolytic capacitors for their affordability, especially in scenarios where space is less of an issue.

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The FN series from Panasonic marks a significant advancement in aluminum electrolytic capacitor technology. Tailored to address the market demand for smaller sizes and greater capacitance, the FN series provides an attractive option for engineers looking for dependable performance without sacrificing size or budget.

Key Features of the FN Series

The FN series distinguishes itself with several notable features:

  1. Miniaturization: The FN series capacitors are designed to be one to two sizes smaller compared to other low ESR electrolytic capacitors available in the market. This compactness makes them suitable for applications where board space is limited.
  2. Large Capacitance: With capacitance values that are 20% to 80% higher than its predecessor, the FK series, the FN series provides engineers with more flexibility in design, particularly in high-capacitance applications.
  3. Wide Voltage Range: The FN series offers a voltage range from 6.3V to 100V, accommodating a variety of applications. The 6.3V to 50V variants are specifically designed for high-temperature lead-free reflow soldering, making them compatible with modern manufacturing processes.
  4. Low ESR: The FN series capacitors feature low ESR, enhancing their performance in applications with high ripple currents. This characteristic is particularly beneficial in power supply circuits where efficiency is paramount.
  5. Vibration Proof: For applications requiring mechanical stability, the FN series includes vibration-proof options, ensuring reliability even in demanding environments.
  6. Compliance: The FN series is RoHS compliant and adheres to AEC-Q200 standards, making it suitable for automotive and industrial applications where reliability and safety are critical.

In comparison 

The FN series is an evolution from standard electrolytic capacitor series in the market, addressing several limitations while enhancing performance. Key improvements include:

  • Increased Capacitance: The FN series offers 20% to 80% higher capacitance in the same case size than competitors’ standard series, providing engineers with more options for high-capacitance designs.
  • Cost Efficiency: The FN series allows for better cost reduction compared to the competitors’ standard series,, making it an attractive option for budget-conscious projects.
  • Enhanced Manufacturing Compatibility: The FN series capacitors are designed for high-temperature lead-free reflow, facilitating integration into modern SMT processes without compromising quality.
  • Robust Performance: With guaranteed vibration resistance rated at 30G for selected sizes (Φ6.3 to Φ10mm), the FN series capacitors are well-suited for applications in harsh environments.

The FN series is well-suited for a variety of applications across different sectors. In the automotive sector (see image), it supports advanced driver-assistance systems (ADAS), electric power steering (EPS), battery management systems (BMS), and charging stations, showcasing its versatility and performance in high-stakes environments. Specifically, it is ideal for safety systems like ABS and electric stability control, as well as engine and power train control systems, where low ESR and high-temperature performance are crucial.

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In the industrial domain, the FN series is ideal for programmable logic controllers (PLCs), I/O modules, and measuring equipment, all of which demand precision and stability.

Last but not least, the FN series is an ideal choice for applications from the smart home ecosystem. It be effectively utilized in smart meters, smart speakers, and lighting control systems, where compactness and reliability are essential.

The FN series from Panasonic represents a significant advancement in aluminum electrolytic capacitor technology. By combining miniaturization with increased capacitance and improved reliability, the FN series addresses the evolving needs of engineers in various industries. While polymer and hybrid capacitors have their place in modern electronics, the FN series reinforces the value of traditional electrolytic capacitors, offering a balanced solution that meets both performance and cost requirements. As the demand for compact, efficient components continues to grow, the FN series stands out as a reliable choice for engineers looking to optimize their designs.

Epilogue: Panasonic's Commitment to E-Cap Technology and Business

Through significant ongoing investments, Panasonic Industry has enhanced its electrolytic capacitor production capacity by 10%. The company is dedicated to continual performance improvements, particularly in lifespan, capacitance-to-size ratio, temperature ratings, and ESR. While some competitors are withdrawing from the market, particularly in the realm of through-hole components, Panasonic remains steadfast in its commitment to providing high-performance parts. For Panasonic, electrolytics are undeniably a staple of the industry.

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