3M Ultra Hard Metric (UHM) Backplane Connector

Industry’s FIRST Fully-Shielded

Ultra High Performance

Lowest Crosstalk

2MM Hard Metric Backplane Connector

The 3M Ultra Hard Metric (UHM) Socket Connector is the industry’s first fully-shielded
2 mm hard metric (HM) connector designed for more than 7 Gbps backplane performance with a high signal density when used with unshielded industry standard 2 mm HM backplane headers. The UHM socket is designed to be intermateable to 2 mm HM IEC 61076-4-101 headers and is fully compatible with 2 mm HM PCB footprints.

The UHM socket connector’s unique design enables backplane designs using widely available standard 2 mm HM connectors to support greater than 7 Gbps performance, high signal integrity applications. Examples of backplane designs using 2 mm HM connectors are PICMG CompactPCI

3U and 6U and VITA VME 64x. Using the UHM socket connector, standard CompactPCI and VME 64x systems can, for the first time, support high density of multi-gigabit high speed serial IO protocols such as SAS, SATA, Rapid IO, PCI Express and Gigabit Ethernet.

The UHM socket connector uses unique patented “virtual coaxial box” shielding technology to provide a tightly controlled impedance fully-shielded differential pair (100 ohm) or single-ended (50 ohm), low crosstalk transmission path through the connector. Full shielding forms a virtual coaxial box around signal contacts individually and/or in pairs. This dramatically reduces crosstalk as compared to a standard unshielded 2 mm HM socket.

The UHM socket connector is available in 5-row (A, B, CL, CR, AB) and 8-row (D, E, DE, FL, FR) form factors allowing a very high signal density – 101 signals per linear inch for the 8-row and 63 signals per linear inch for the 5-row. The unique construction of the UHM socket connector supports 100 ohm differential pairs in rows or columns. Running differential pairs in rows eliminates row-to-row skew.

Upcoming Webinar Event: Understanding 3M Ultra Hard Metric (UHM) Connectors

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Features & Benefits

High-speed socket connector - more than 7 Gbps even when used with standard unshielded HM headers
Full shielding of signals or signal pairs minimizes crosstalk and insertion loss
2 mm pitch offers intermateability and PCB footprint compatibility with standard HM designs – leverages existing investment
High signal density - 101 signals per linear inch for the 8-row and 63 signals per linear inch for the 5-row – optimizes PCB space
Unique dual beam contact design for high reliability

Target Markets & Applications

Embedded Systems
Compact PCI 3U and 6U Computing Systems, VME Systems
Communications
Access equipment, e.g., Channel Banks, Wireless
Industrial and Factory Automation
Process Control
Transportation Systems Medical Test & Measurement – e.g., PXI systems
Military
Embedded computing platforms

3M Part Number

Description

UHM-S110B3-5AP1-KRUHM-S110B3-5AP1-KR

SOCKET, UHM, B TYPE, 110WAY

UHM-S095B3-5AP1-KRUHM-S095B3-5AP1-KR

SOCKET, UHM, B TYPE, 95WAY

UHM-S110A3-5AP1-KRUHM-S110A3-5AP1-KR

SOCKET, UHM, A TYPE, 110WAY

UHM-S055CL3-5AP1-KRUHM-S055CL3-5AP1-KR

SOCKET, UHM, C-LEFT GUIDE, 55WAY

Attachments:

3M(TM) Ultra Hard Metric UHM Connector Product Bulletin.pdf