Low ESR Capacitor and Ripple Current Rating

gobi

10 kW
Joined
Jan 9, 2021
Messages
568
I am voltage spike filter for VESC controller like my Flipsky 75100.

http://www.mateksys.com/?portfolio=xt60-tvs

I bought the above for the PCB, I took off the TVS diodes and I need high voltage capacitors.

I found Nichicon PW series and HW series on mouser
Ripple Current
1520 mA (PW)
3.86 A (HW)


The HW series has a much higher "Ripple Current" rating,
I am guessing the higher ripple current rating is BETTER for use as a voltage spike filter?

Here are the links, which one should I pick?


https://mou.sr/3D0ZPOq

https://mou.sr/3Xoa1bI

I am planning on adding 2000uf aka 2x1000uf caps.
 
Life Tolerance Ripple Current Minimum Operating Temperature Lead Style ESR
PW 8000 Hour 20% 1520 mA - 55 C Straight 47 mOhms
HW 10000 Hour 20% 3.86 A - 40 C Straight 27 mOhms

I am going for the HW series capacitor as it has lower resistance and higher Ripple Current rating.
 
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