Keithley 2401 Source Meter, Current/Resistance/Voltage Measure, 20 W
NIST Traceable Certificate of calibration w/ data report. Calibrated 8/2026
90 Days Warranty.
Product Overview
The Lowest Cost Precision SMU (source measurement unit) on the Market
The Model 2401 is the lowest cost precision SMU instrument on the market, offering an economical 20W I-V source/measure alternative to configuring systems and test benches with separate programmable power supplies and digital multimeters. The Model 2401 also offers an economical alternative for applications for which precision programmable power supplies cannot deliver sufficient accuracy, signal range, source setting, or readback resolution.
The Model 2401 offers users all the same accuracy, speed, and measurement functions as the rest of the instruments in the Series 2400 family. It shares a common operating code base with the rest of the family, so it can be operated and programmed within its range boundaries just like any other Series 2400 instrument. The only functional differences between the Model 2401 and the Model 2400 are that the Model 2401 does not include 200V source and measure ranges or back panel Digital I/O port capabilities. (However, the DB-9 connector is still provided to provide test fixture interlock signals.)
Features:
1μV–20V and 10pA–1A precision voltage and current sourcing and measurement capabilities
Five instruments in one (IV Source, IVR Measure)
Source and sink (4-quadrant) operation
0.012% basic measure accuracy with 5½-digit resolution
2-, 4-, and 6-wire remote V-source and measure sensing
1700 readings/second at 4½ digits via GPIB
Standard SCPI GPIB, RS-232 and Keithley Trigger Link interfaces
Keithley LabTracer 2.0 I-V curve tracing application software
Typical Applications
High brightness LED (DC and pulse)
Photovoltaic cell efficiency (source and sink)
Precision DC power supply/ current measure
Discrete semiconductor devices
Passive devices
Laser diodes, laser diode modules, LEDs, photodetectors
Connectors, switches, relays
Low voltages/resistances
LIV
IDDQ
I-V characterization
The economical Model 2401 is the latest member of Keithley’s Series 2400 SourceMeter family, designed specifically for low voltage test applications that demand tightly coupled sourcing and measurement. Like all Series 2400 SourceMeter models, the Model 2401 provides precision voltage and current sourcing and measurement capabilities (1μV–20V and 10pA–1A). It is both a highly stable DC power source and a true instrument-grade 5½-digit multimeter.
The power source characteristics include low noise, precision, and readback. The multimeter capabilities include high repeatability and low noise. The result is a compact, single-channel, DC parametric tester. In operation, it can act as a voltage source, a current source, a voltage meter, a current meter, and an ohmmeter.
