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July 2025
Keysight 34903A
Keysight/Agilent 34903A, 20 Channels, 50 W Power, Actuator/GP Switch Module for the 34970A/34972A
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
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✔ NIST Calibration Available
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Keysight/Agilent 34903A Actuator/GP Switch Module for 34970A/34972A
The 34903A from Keysight/Agilent is an example of a high-quality "actuator" and GP switch module designed as an accessory to be used in conjunction with Keysight's 34970A & 34972A data acquisition mainframes. It includes twenty independent single-pole double-throw (SPDT) latching relays per unit. These SPDT relays are equipped with form-c contacts and can be utilized for routing control signals or power to multiple endpoints. The key advantage of utilizing latching relay architecture on the 34903A is that it will maintain the position of the switches regardless of whether the host mainframe has lost power. This is vital when you want to ensure your automated test environment is safe. All units ship with a functional test certificate that includes a verification of their operation during testing at the factory.
Industrial automation engineers use the actuator/GP switch module to provide external control over devices and distribute power in production test stations. The relay contacts are capable of handling 300 volts @ 1 ampere; they will dissipate up to 50 watts, which makes them suitable for many types of power line switching applications. The common uses include cycling on and off AC or DC power to the device under test, driving external heavy-duty relays, toggling indicator lights, and energizing solenoids in manufacturing cells. If used alongside multiplexer or matrix modules from the same family as the 34970A/34972A, then the general-purpose switch forms the foundation of an automated system that can be tailored specifically to meet your automated testing requirements.
As far as practical usage goes, the 34903A simplifies functional testing of your products by providing a dedicated channel for each control point within your functional testing setup, reducing wire clutter and increasing system dependability. Additionally, due to the break-before-make action of the SPDT relays provided, the signal transitions will always be safe and free from momentary shorts. This module is extremely valuable in environmental chamber testing, burn-in racks, and final product verification where consistent, repeatable actuation is critical. Using this actuator/GP switch module within your Keysight 34972A or Keysight 34970A mainframe provides automation engineers remote programming capability and easy integration with most commonly used test software.
| Model | Keysight 34903A |
|---|---|
| Part Type | Actuator/GP Switch Module |
| Manufacturer | Keysight |
| Legacy Manufacturer | Agilent |
| Channels | 20, independent |
| Relay Type | SPDT, Form C, latching |
| Max Voltage | 300 V AC/DC |
| Max Current | 1 A |
| Max Power | 50 W |
| Isolation | 10 GOhm (open) |
| Contact Resistance | 0.2 Ohm (initial) |
| Thermal EMF | 3 microvolt |
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