The Keysight Advanced Power System (APS) N6900 and N7900 Series are programmable DC power supplies built on Keysight's VersaPower architecture. The family delivers 1 kW in a 1U full-rack chassis and 2 kW in a 2U full-rack chassis, with voltage tiers spanning 9 V, 20 V, 40 V, 60 V, 80 V, 120 V, and 160 V. The N6900 Series is positioned for ATE applications where high performance is critical and accepts performance options to add dynamic test capabilities, while the N7900 Series is positioned for ATE applications where high-speed dynamic sourcing and measurement is required from the outset.

Applications listed in the datasheet include increasing test system throughput, building a continuous source and load solution for power storage device test, protecting expensive devices under test from power-related damage, characterizing dynamic current profiles, generating power transients that simulate surges and interrupts seen in harsh real-world environments, characterizing inrush current at power-on, maintaining output integrity under dynamic load conditions, tracking power events for root-cause analysis, and properly sequencing the power-on and power-off of devices with multiple supply inputs such as satellite payloads.

Brand Heritage

Keysight Technologies was established in 2014 when Agilent Technologies separated its electronic measurement business into a standalone company. Agilent had itself been spun off from Hewlett-Packard's test and measurement and analytical divisions in 1999. The APS N6900 and N7900 product families have been developed under the Keysight brand following that 2014 separation.

Compare Other Models in This Series

The Advanced Power System family comprises two parallel series — the N6900 Series DC power supplies and the N7900 Series dynamic DC power supplies — sharing the same VersaPower architecture, the same 1 kW (1U) and 2 kW (2U) chassis options, and the same voltage tiers from 9 V through 160 V. Both series offer five voltage/current combinations at the 1 kW power level and seven voltage/current combinations at the 2 kW power level.

The two series differ primarily in how dynamic sourcing, measurement, and waveform capabilities are delivered. The N6900 Series is positioned for ATE applications where high performance is critical, with several dynamic capabilities available as performance options (301, 302, 303, 760/761). The N7900 Series is positioned for ATE applications where high-speed dynamic sourcing and measurement is needed from the start, with those capabilities included as standard.

Each pre-owned APS model below links to its own product page with condition-matched pricing, current availability, and the option configuration documented for that specific unit. Compare the voltage, current, and power columns across the family to confirm which APS model fits your DUT's voltage range, peak current including inrush, and total wattage requirement.

Across both the N6900 and N7900 series, the primary model-to-model differences within each series are voltage range, maximum current, and chassis power class. The 1 kW chassis houses the N6950A/N7950A through N6954A/N7954A models (9 V/100 A down through 80 V/12.5 A); the 2 kW chassis houses the N6970A/N7970A through N6977A/N7977A models, extending the lineup with higher-current 9 V (200 A) and 20 V (100 A) versions and adding two voltage tiers — 120 V (16.7 A) and 160 V (12.5 A) — that are not offered in the 1 kW chassis.

Within a given voltage/current tier, the choice between the N6900 and the corresponding N7900 model comes down to which dynamic capabilities need to be present at order time versus configured later: voltage/current programming precision (14-bit standard / 16-bit with Option 303 on N6900 versus 16-bit standard on N7900), voltage up/down programming time (3 ms / 3 ms standard or 0.5 ms / 0.35 ms with Option 303 on N6900 versus 0.5 ms / 0.35 ms standard on N7900), low current measurement range and seamless current measurements (Option 301 on N6900 versus standard on N7900), V and I digitizers with programmable sample rates and external logging (Option 302 on N6900 versus standard on N7900), output list capability and arbitrary waveform generation (Option 303 on N6900 versus standard on N7900), and output disconnect / polarity reversal relays (Option 760/761 on N6900 versus standard on N7900, with the 9 V models having only disconnect relays in both series). Refer to the comparison table that follows for the per-model voltage, current, and chassis-power values.

Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below.

Product Core & Specifications

About this used unit

• Warranty included
• Functional verification included
• Standard Calibration Upgrade Options: No Calibration Required, NIST Traceable, Z540.1 or ISO 17025 with Data, Z540.3 Guardbanding with Data.
• Note that unnecessary accessories may not be included (contact Test Architect to confirm).

Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.