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July 2025
Keysight 44473A
Keysight Agilent 44473A, 2 Wire, 300 MHz, 50 Ohm, Matrix Switch Module
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 44473A Matrix Switch Module
The Keysight Agilent 44473A is a two-wire matrix switch module that connects several instruments to multiple DUT test points through a compact matrix arrangement. The 44473A supports any combination of inputs and outputs within its 4 x 4 structure. This configuration helps route measurement signals without repeated manual rewiring during production or validation work. The switch module handles signals up to 250 V. Each channel supports 2 A, while the complete module supports 8 A total current of 8 A. The module also provides 60 W or 125 VA switching power per channel. The total module capacity reaches 240 W or 500 VA for controlled matrix switching applications.
The Keysight 44473A uses mechanical relays with a relay life rating of 100 million operations. This relay life supports repeated switching sequences in automated inspection and functional test environments. The maximum scan rate is 43 channels per second for efficient signal path selection. The model provides flexible matrix switching for automated test systems. The initial closed channel resistance remains below 1 ohm for stable low resistance signal routing. The thermal offset stays below 3 µV for sensitive measurement paths requiring low offset error.
The Matrix Switch Module provides high DC isolation between unused signal paths. The open-channel isolation exceeds 10¹¹ ohms under conditions below 40 °C and 60 % relative humidity. The high to low isolation exceeds 10¹? Ohms for separation between paired signal lines. The channel to chassis isolation also exceeds 10¹? Ohms for controlled protection from chassis leakage paths. The AC isolation characteristics of the model support cleaner switching performance in systems with capacitive coupling concerns. With one channel closed, open-channel-to-channel capacitance remains below 5 pF. The high-to-low capacitance stays below 40 pF for balanced two-wire switching paths. The channel-to-chassis capacitance remains below 70 pF across the module connection structure. The model gives automation systems structured switching within one module. Its voltage, current, isolation, and capacitance ratings define dependable operation for controlled test environments.
| Model | Keysight 44473A |
|---|---|
| Manufacturer | Keysight Agilent |
| Part Type | 4x4 Two-Wire Matrix Switch Module |
| Thermal Offset | < 3 µV |
| Maximum Scan Rate | 43 channels/sec |
| Relay Life (Mechanical) | 10 cycles |
| Maximum Voltage | 250 V |
| Maximum Current | Per Channel: 2 A, Per Module: 8 A |
| Initial Closed Channel Resistance | < 1 Ohm |
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