# How to Choose Capacitors for Robot Joint Motors: Yongming LKZ Liquid Aluminum Capacitor Solution for Space-Constrained, High Instantaneous Current Conditions

- Source: 维科网机器人 · 微信公众号
- Published: 2026-11-02T10:10:16.000Z
- RoboHot: https://robohot.news/en/items/ykaswv7h70bub0vfsajrq6sbb
- Original: https://mp.weixin.qq.com/s?__biz=MzUzNTA3NTYyNQ==&mid=2247585576&idx=1&sn=382ad03f59fc1b1dae2471482ec17e9b&chksm=fbd2cfa8c2d448e96c5835741c35f366ec1ebab32b6b197ee385fc1c3e7d0357e0f679169ea1&scene=126&sessionid=1793628906#rd

## Summary

To address the selection challenges of space constraints and high instantaneous current in robot joint motor controllers, the Yongming LKZ series liquid aluminum electrolytic capacitors use a single high-capacitance unit to reduce the number of parallel connections. Taking LKZ 100V 150μF 8×25 as an example, a single unit provides 150μF, typical ripple 900mA, and ESR of about 0.20Ω; an example configuration of 4 in parallel reaches 600μF, which can reduce layout pressure. The solution also offers vibration resistance, wide temperature range, and low ESR; whether it applies must be verified against the BOM, operating conditions, and full-machine testing, and the manufacturer offers free samples and Demo board testing.