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The 40-251-134 is a programmable resistor module with 2 channels which can be set between 2Ω and 102kΩ with 2Ω resolution The 40-251 range provides a simple solution for applications requiring up to 2.5W of power handling per channel. The 40-251 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems. Each channel is able to simulate short or open circuit conditions that can be experienced in a system caused by faulty wiring or sensors.

The 40-251 range is available in 50 standard builds that suit the most common configurations:

  • Narrow resistance range versions, available in 4 or 8 channel variants
  • Medium resistance range version, available in 2 or 4 channel variants
  • Wide resistance range version, available in 1 or 2 channel variants

A calibration cable assembly can be attached to the module in place of the UUT to enable a DMM to be used for verifying the resistor channels, considerably simplifying the checking of the module's calibration. The associated calibration cable for this product is available for purchase as 40-975-037-1m

For applications requiring greater density with lower power, users should consider the model 40-297 high-density Precision Resistor Modules.

Key Features

  • Up to 2.5W Per Channel
  • Up To 8 Channels in a 1-Slot Module
  • Resistance Resolution to 0.125 Ohm
  • Values From 1 Ohm to 22M Ohm
  • Short and Open Simulation
  • Simple Software Control Through Resistance Calls
  • VISA, IVI and Kernel Drivers Supplied for Windows
  • Supported by PXI or LXI Chassis
  • 3 Year Warranty
* Note: Product image above may be a different model in this range and is for illustrative purposes only

Product specifications

If no specifications are present, please see the product datasheet in this section. 

Please note: In some cases, for products like our Scalable LXI Chassis, the specifications can be found on the datasheets for the associated plugin modules that are inserted into these chassis. To find these modules, go to the "Also in the Range" link above.

Need to narrow down your search by specifications, try our Product Selector

Product Type: Programmable Resistors
Platform: PXI
Min R (Ω): 2
Max R (Ω): 102k
Accuracy (%): 0.3
Resolution (Ω): 2
Channel Type: Resistor
Channels: 2
Power (W): 2.5


PDF Datasheet
Includes full information and specifications
PDF, 1.14 MB
PDF Manual
Includes manual, extended specifications, installation instructions and data
PDF, 3.71 MB
Related 37 Way D-Type Connector Accessories Datasheet
A complete list and documentation for mating connection accessories
PDF, 3.51 MB
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