Capacitor ESR Calculator

Default values are filled according to Rubycon 450LXW47MEFR10X40

Cap Value µF
Frequency Hz
tan (δ)
Imax @ 120Hz A
ESR @ 120Hz Ω
Pmax W
Imax @ 100kHz A
ESR @ 100kHz Ω
Source:
  1. KEMET Electronics Corp., (2004). "Technical Update – Explanation of Ripple Current Capabilities" [White paper]. Retrieved from here.
  2. Xie, Manjing,“How to select input capacitors for a buck converter,” AAJ 2Q 2016,Texas Instruments, 2016. Retrieved from here.
  3. Arrigo, Jason, Input and Output Capacitor Selection, Application Report, TI Literature No. SLTA055, 2006. Retrieved from here.