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RC Time Constant

Enter R and C to get τ = RC, the 63. · in Capacitors

time constantcharge

Enter R and C to get τ = RC, the 63.2% charge time, and the 5τ full-charge time (~99.3%). Essential for coupling capacitor and bypass capacitor design.

How to use

What it's for

RC time constant and charge times.

You enter

  • R and C.

You get

  • τ = RC, the 63.2% charge time, and 5τ full charge (~99.3%).
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