Keysight (Agilent)
Keysight (Agilent) 41421B
Source / Monitor Unit Plug-In Module 100 uV - 100 V 100 mA.
DC Source/Monitor Unit Instrument Type
0 to ±100 V Voltage Output Range
0 to ±100 mA Current Output Range
10 µV Voltage Measurement Resolution
10 fA Current Measurement Resolution

| Attribute | Value |
|---|---|
| Instrument Type | DC Source/Monitor Unit |
| Voltage Output Range | 0 to ±100 V |
| Current Output Range | 0 to ±100 mA |
| Voltage Measurement Resolution | 10 µV |
| Current Measurement Resolution | 10 fA |
| Output Channels | 1 Channel |
| Interface/Connectivity | GPIB (IEEE-488) |
| Compatible Platform | Keysight 4142B Modular DC Source/Monitor |
| Module Form Factor | Plug-in Module for 4142B Mainframe |
| Power Supply Requirement | Supplied via 4142B Mainframe |
Keysight (Agilent) 41421B Options:
- HP 4142B - Opt. 050 - 50Hz Line Frequency
- HP 4142B - Opt. 060 - 60Hz Line Frequency
- HP 4142B - Opt. 100 - 100/120V Line Voltage
- HP 4142B - Opt. 220 - 220/240V Line Voltage
- HP 4142B - Opt. 300 - Control unit
- HP 4142B - Opt. 400 - HP 41420A HPSMU:200V,1A (2 slots)
- HP 4142B - Opt. 410 - HP 41421B MPSMU:100V,100mA (1 slot)
- HP 4142B - Opt. 420 - HP 41422A HCU:10V,10A (2 slots)
- HP 4142B - Opt. 430 - HP 41423A HVU:1000V,10mA (2 slots)
- HP 4142B - Opt. 440 - HP 41424A VS/VMU:40V,100mA (1 slot)
- HP 4142B - Opt. 450 - HP 41425A AFU (1 slot)
- HP 16058A - - Test Fixture (Non-Kelvin SMU, VS/VMU), includes set of 4 triax cables (1.5m)
- HP 16058A - Opt. 001 - Adds HP 4142B system cable
- HP 16087A - - Module Selector (supports SMU, HCU, HVU), includes connector plate and on/off status indicator
- HP 16088B - - Test Fixture (Kelvin, supports all HP 4142B plug-in units)
- HP 16088B - Opt. 010 - Socket module set for power devices
- HP 16088B - Opt. 020 - Socket module set for small signal devices
- HP 16088B - Opt. 030 - Universal socket module for custom devices
- HP 16088B - Opt. 300 - Adds module selector (mounted inside fixture)
- HP 16276B - - IMA/WS Interactive Measurement and Analysis Software (BASIC operating system on HP 9000 Series 300 workstations)
- HP 16277B - - IMA/UX Interactive Measurement and Analysis Software (BASIC/UX operating system on HP 9000 Series 300 workstations)
- HP 16278B - - IMA/PC Interactive Measurement and Analysis Software (BASIC/MS-DOS operating system on HP Vectra or IBM compatible PCs)
| Model | 41421B |
|---|
The Keysight (Agilent) 41421B is a used Source Monitor Unit plug-in for the 4142B, offering a voltage range from 100 µV to 100 V and current capability up to 100 mA. It is designed as a proprietary module form factor without features like remote sensing or protection circuits.
Ideal for advanced semiconductor parameter testing, it integrates smoothly with the 4142B mainframe for precise current-voltage sourcing and measurement.
Testwall can supply the used Keysight (Agilent) 41421B, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Keysight (Agilent) 41421B.





