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July 2025
E8481A
Keysight/Agilent E8481A, 4x32 Matrix, 2-Wire, Relay Matrix Switch
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
✔ Free Domestic Ground Shipping
✔ 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 E8481A 4x32 Relay Matrix Switch
The E8481A 2-Wire 4x32 Relay Matrix Switch from Keysight/Agilent is a register based C-size switching module supporting signal routing applications. It operates within single-slot VXI systems requiring low-noise switching performance. The module supports flexible dual 4x16 matrix configurations alongside single 4x32 matrix requirements. The architecture enables signal distribution across automated testing environments. The unit delivers performance reaching 70 MHz 4x16 configurations. The single 4x32 matrix configurations maintain bandwidth performance reaching 50 MHz under controlled impedance conditions. The non-latching reed relays provide channel switching characteristics across repetitive measurement procedures requiring operational accuracy. The typical relay life reaches 10E9 switching operations. The relay matrix switch supports maximum terminal voltages reaching 42 VDC across measurement and interfaces. The alternating current terminal handling reaches 30 volts RMS during function.
The maximum transient impulse tolerance reaches 500 volts peak during electrical surge conditions affecting interfaces. Each non-inductive switching channel supports direct current handling capabilities reaching 0.5 amperes operation. The AC handling capabilities reach 0.5 amperes across individual relay controlled switching channels and maximum channel power handling reaches 5 VA. The total module power handling capacity goes up to 40 VA across installed relay pathways. The initial closed channel resistance is less than 2 Ohm and guarantees reliable electrical transmission with small losses during measurement procedures. Thermal offset performance remains limited below 50 microvolts supporting accurate low-level signal switching throughout sensitive applications. Insulation resistance is greater than 10E8 ohms in temperature range below 40? and constantly.
The crosstalk performance is also consistently worse than -50 dB at frequencies below 5 MHz. The register based architecture of unit supports A16 slave-only VXI communication requirements without integrated shared memory resources. The E8481A relay matrix switch is designed to fit into a single C-size VXI module and uses standard P1 and P2 VXI configurations. Integrated VXI buses are not available because internal switching coordination procedures are handled by dedicated operations of the register. The unit supports wire size from AWG18 to AWG26. It offers onboard memory holding over 500 channel lists and allows organized channel list. The Reed relay construction limits mechanical wear and ensures reliable operation.
| Part Number | E8481A |
|---|---|
| Manufacturer | Keysight |
| Legacy Manufacturer | Agilent |
| Part Type | Relay Matrix Switch |
| Wires | 2-Wire |
| Matrix Configuration | Dual 4x16 or Single 4x32 2-wire matrix |
| Relay Type | Non-latching reed relays |
| Maximum DC Voltage | 42 V DC |
| Maximum AC Voltage | 30 V RMS |
| Maximum Channel Current | 0.5 A DC / 0.5 A AC peak |
| Maximum Thermal Offset | 50 micro-V |
| Relay Life Expectancy | 10E9 operations |
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