UHM Connectors - 3M | DigiKey

3M™ Ultra Hard Metric (UHM) Connector for Compact PCI PICMG 2.30 Applications

3M now offers a new fully shielded socket connector in the Ultra Hard Metric (UHM) series that is anticipated to conform to the shielded J2 connector requirements specified in a new CompactPCI® standard specified in PICMG 2.30.

The 3M UHM connector that conforms to the PICMG 2.30 draft standard is:

The UHM-S110B3-5AP1-TG30 connector is intended to be specifically designed for PICMG 2.30 applications.

The PICMG 2.30 CompactPCI draft standard is a next generation standard intended to seamlessly provide support for high speed serial IO such as PCI Express, SAS/SATA, Gigabit Ethernet, USB while leveraging end users’ existing investment in 3U and 6U CompactPCI computing platforms defined under an earlier standard defined under PICMG 2.16 Market Segments/Customer Applications

• Embedded Computing
• Industrial Control & Factory Automation
• Medical
• Communications
• Military Computing

• Expected to conform to PICMG 2.30 shielded J2 connector requirements
• High-speed socket connector – more than 7 Gbps performance even when used with standard
  unshielded Hard Metric (HM) headers (from 3M or competition)
• Full shielding of signals or signal pairs minimizes crosstalk
• 2 mm pitch offers intermateability and PCB footprint compatibility with standard HM designs –
  leverages existing investment
• High signal density – 63 signals per linear inch for the 5-row - optimizes PCB space
• Unique dual beam contact design for high reliability
• RoHS* compliant with press-fit exemption

The 3M UHM-S110B3-5AP1-TG30 connector is expected to conform to the shielded J2 connector defined for the System Slot in Compact PCI embedded computing systems defined under the PICMG 2.30 draft standard.

3M™ Ultra Hard Metric (UHM) Backplane Socket 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 singleended (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.

• 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

Product Specifications

3M™ UHM Products

• Ultra Hard Metric (UHM) Connector for Compact PCI PICMG 2.30 Applications

Other 3M™ High Speed Solutions