Capacitor code

Convert 3-digit ceramic capacitor codes to pF/nF/µF and back.

The 3-digit code reads digit₁ · digit₂ × 10^multiplier picofarads: 104 = 10 × 10⁴ pF = 100 nF = 0.1 µF, 475 = 4.7 µF. A trailing letter is an EIA tolerance code (J = ±5%, K = ±10%, M = ±20%). R-notation decimals (4R7) are not parsed.

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How to use

  1. Pick code → value or value → code.
  2. Enter the 3-digit code or the value with a unit.
  3. Read the conversion.

What it supports

3-digit code = digit₁ digit₂ × 10^multiplier pF — 104 = 100 nF, 475 = 4.7 µF. Multiplier digits 0–9. A trailing EIA tolerance letter (J = ±5%, K = ±10%, M = ±20%, and six more) is decoded; R-notation decimals (4R7), voltage ratings, and temperature-coefficient markings are not parsed.

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