# How to Choose Capacitors for Robot Joint Motors? Yomin LKZ Liquid Aluminum Capacitor Solution for Space-Constrained, High Instantaneous Current Scenarios

- Source: OFweek Robotics
- Published: 2026-11-03T01:52:00.000Z
- RoboHot: https://robohot.news/en/items/wglii5uw69xj1snsoks8bhwmj
- Original: https://robot.ofweek.com/2026-11/ART-8321201-8120-30709995.html

## Summary

The Yomin LKZ series of liquid aluminum electrolytic capacitors targets space-constrained, high instantaneous current scenarios in robot joint motor controllers, using a single high-capacitance unit to reduce the number of MLCCs in parallel. Taking the LKZ 100V 150μF 8×25 as an example, a single unit has a nominal 150μF, typical ripple of 900mA, and ESR of about 0.20Ω; four in parallel in the example reach 600μF. The solution can be used for board-level filtering and transient energy storage evaluation; whether it applies must be verified against the BOM, operating conditions, and full-system testing, and the manufacturer offers free samples and Demo board testing.