Keysight (Agilent) N6781A

| Attribute | Value |
|---|---|
| Voltage Range | 0 to +6 VDC (source), -6 V to +6 VDC (measure) |
| Current Range | -3 A to +3 A (source and measure) |
| Voltage Measurement Resolution | 15.3 µV (low range), 61.0 µV (high range) |
| Current Measurement Resolution | 1.2 nA (low range), 76.3 nA (high range) |
| Output Power | Up to 18 W per module |
| Number of Quadrants | 2-quadrant operation (source and sink current) |
| Primary Function | Source/Measure Unit (SMU) optimized for battery drain analysis |
| Current Measurement Bandwidth | Up to 200,000 samples/second (seamless ranging) |
| Form Factor / Interface | Plug-in module for Keysight N6700 Series Modular Power System mainframe |
| Dynamic Current Measurement | Seamless current ranging with no measurement gaps across full dynamic range |
| Model | N6781A |
|---|
The Keysight (Agilent) N6781A is a high‑precision source/measure unit engineered for comprehensive battery drain analysis, offering seamless measurement ranging, programmable output resistance, and an integral auxiliary DVM. It delivers up to 20 V, ±3 A, and 20 W of power with voltage programming accuracy of 0.025% + 1.8 mV (20 V range) and current accuracy to 0.04% + 300 µA (1 A/3 A ranges). Fast transient response (< 30 mV droop at 0.15 A/µs) ensures reliable analysis during dynamic load events. Measurement accuracy stays tight—0.025% + 1.2 mV for voltage and 0.03% + 250 µA for 3 A current at 23 °C.
Use the N6781A with Keysight’s 14585A Control & Analysis software to unlock deeper battery drain insights, ideal for devices from e‑readers to pacemakers.
The N6781A blends precision sourcing and measurement with programmable resistance and fast transient response for exact battery analysis.
Its wide output range (20 V/±3 A/20 W) and excellent accuracy make it versatile for both bench tests and automated production environments.
Testwall’s expert support and global delivery make the N6781A a top choice over competitors seeking performance and reliability.
Testwall can supply the used Keysight N6781A, 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) N6781A.





