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Keysight Used N6781A Two-Quadrant SMU for Precise Battery Drain Analysis

Meet Deadlines with Fast Reliable Gear

✔ Up to 5 Years Keysight Warranty
✔ Countless Customization Options
✔ Reliable OEM Expertise

Full Product Info

Key Specifications

Output Ratings Voltage

20 V

Output Ratings Current

 ±3 A

Output Ratings Power

20 W

Programming Accuracy Voltage 20V range

0.025% + 1.8 mV

Programming Accuracy Current 3A range

0.04% + 300 µA

Unparalleled Precision and Versatility with the N6781A Two-Quadrant SMU for Battery Drain Analysis

  •  Seamless Measurement Ranging: The unit's seamless measurement ranging feature allows for precise measurement of dynamic currents without any disruptions, from nA to A in one pass. 
  •  Programmable Output Resistance: With the programmable output resistance, the unit can mimic the battery's internal resistance, providing a more accurate representation of how the device operates in real-world scenarios.

Exceptional Functionality and Usability for Tomorrow's Engineers

  •  Glitch-Free Sourcing and Measurement: Change output and measurement ranges seamlessly without glitches, ensuring a smooth and uninterrupted operation.
  •  High-Speed Digitized Measurements: Capture and view the device under test's power consumption every 5 µs with the built-in 200 kHz digitizer, offering insights into power consumption like never before.

5 Reasons to Buy Used from Keysight

  •  Save More: Buy directly from Keysight for significant savings and the best support. Remember, equipment failures can cost over $25k daily.
  • Certified Quality: We are confident in our product quality and guarantee quick repairs.
  •  Technical Support: Benefit from affordable equipment and unmatched OEM support with KeysightCare, offering expert assistance and a comprehensive knowledge base.


Fact: 78% of customers face daily losses exceeding $25k due to equipment failures. Choose Keysight for dependable quality and peace of mind.

Highlighted Resources

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What are the main differences between Keysight New, Keysight Premium Used & Keysight Used equipment?

  Keysight New Keysight Premium Used Keysight Used
Savings None Up to 70% Up to 90%
Condition New Like New Working Condition ¹
Firmware Latest Updated As is
Calibration Full Full As listed
Accessories New New As listed
Warranty 1 to 5 Years ² Like New 90 Days Warranty
Customization Possible Possible Limited

Learn more about Keysight Premium Used Here

Can I configure a unit to meet my personal needs?

Customization is generally possible with our Keysight Premium Used equipment. The majority of our Keysight Premium Used equipment can be configured just the way you need it. Options can be added at additional cost.
Customizing Keysight Premium Used equipment might change the delivery and lead time of the item.

Some Keysight Used products cannot be customized. Use the contact option on the product page to check with the our eStore team.

What accessories are included?

Keysight Premium Used equipment typically comes with the same accessories and warranty as new products.

Can you include other accessories?

We currently only offer those accessories which are part of the listing. Other accessories can be purchased separately at extra cost with your purchase of a Keysight Used or Keysight Premium Used unit.

Please mention in the comment field which additional accessories or support you are interested in.

For seperate or post-purchase ordering, please contact your local Keysight office or Keysight Partner here. Or check our online store if available for your region here.

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