Description
Leakage currents in a sensor or a transistor can sit far below what a handheld meter reads. The Keysight M9601A source measure unit (SMU) targets that territory because it resolves 10 fA, and it plugs into a PXIe chassis. Lost in HCM lists it for rental and sale, so you can borrow it for a project or buy it for the lab. It also arranges service on request.

What the Keysight M9601A source measure unit does
An SMU applies a voltage or a current and measures the response at the same moment. This module has one four-quadrant channel, so it can source and sink in both polarities. As a result, one channel can drive a diode forward and then read the reverse leakage.
| Outputs | 1 four-quadrant source/measure channel |
|---|---|
| Maximum voltage | 210 V |
| Maximum current | 315 mA |
| Minimum current resolution | 10 fA |
| Maximum sample rate | 1.25 MSa/s |
| Minimum pulse width | 20 microseconds |
| Format | PXIe module |
Short pulses and fast sampling
The minimum pulse width is 20 microseconds, so a device under test stays cooler, because the stress does not last long. Meanwhile the 1.25 MSa/s digitizer records fast changes in current and voltage. Therefore you can watch a transient instead of guessing at it.
Where teams put it to work
Semiconductor teams use it for I-V curves and reliability studies. It also suits photodiodes, sensors and other low-current devices, while pulsed measurements limit self-heating. In addition, it can sit inside an automated PXIe parametric test system.
Build the PXIe system around the module
The M9601A is a module, so it needs a host. Ask for a PXIe chassis and a controller, then add the interlock cable, triax cabling, adapters and fixtures. Low-current work also needs careful shielding, because stray pickup can hide a femtoamp signal. So quote each item and the software as its own line.
Rent for a project or buy for the line
A rental suits a short characterization project, a failure investigation or a proof of concept. For example, a team can borrow the module while it decides on a full test platform. However, ownership makes sense when the same measurement runs every week. Before it accepts an order, Lost in HCM also checks stock and the exact configuration.
Request a quote
SMK Vietnam shows this listing for its partner, while Lost in HCM supplies the module, sets the terms and gives the quote. To order the Keysight M9601A source measure unit, first request a quote from Lost in HCM with your voltage and current needs, chassis plan and dates. You can also browse the source measure unit listings, read the Keysight site or contact SMK Vietnam.
M9601A questions
Is the M9601A a complete test station?
No. It is a PXIe module, so you still need a chassis, a controller, cabling and software. Each one gets its own line in the quote.
Can it give 210 V and 315 mA together?
Treat these as separate headline limits, because the rated envelope may not allow both at once. Check it for your test point before you plan the setup.
How small a current can it resolve?
The minimum current resolution is 10 fA, so the module suits very small leakage currents.















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