Keysight / Agilent 34925A 40/80 Channel Optically Isolated FET Multiplexer

Keysight / Agilent MPN: 34925A

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Keysight / Agilent 34925A 40/80 Channel Optically Isolated FET Multiplexer

The Agilent 34925A module for the 34980A Multifunction Switch/Measure Unit is a high speed multiplexer that uses long-life, solid-state relays. The high-speed FET relays scan up to 1000 channels-per-second. Use this module for high-volume automated test applications that need high-speed, long-life relays.

2- and 4-wire channels may be mixed on the same module or configure as a 1-wire multiplexer. Standard 50-pin Dsub connectors allow for use with standard cables, terminal blocks, or mass interconnect solutions.

The 34925T is a terminal block for the 34925A 40/80-channel FET multiplexer. This terminal block is used for discrete wiring. It supports up to 20 AWG wire size typical for &lt:100 connections or 24 AWG for >100 connections. The following two terminal blocks are available to facilitate wiring connections to the 34925A module:

  • 34925T-001 (Option 001) Terminal Block for 2-wire configurations
  • 34925T-002 (Option 002) Terminal Block for 1-wire configurations

The 34925T is a detachable terminal block with screw-type connections that provides a flexible method for connecting external wiring.


  • 40 2-wire channels or 80 1-wire channels
  • Mixed 2- or 4-wire configurations
  • High-speed optically isolated FET switches, with relay counter
  • ±80V peak, 20mA switch
  • 1000 ch/s scanning

Please see Datasheet for complete details and specifications.


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