Electronics
Capacitor Code & Converter
Type the marking on a capacitor to get its value, tolerance and voltage.
Examples:
pF ↔ nF ↔ µF converter
Ceramic dielectric codes
Try:
About this tool
Three-digit codes
The value is in picofarads: two digits, then the number of zeros. 104 = 10 + 0000 = 100,000 pF = 100 nF = 0.1 µF. A third digit of 8 or 9 means ×0.01 or ×0.1, so 109 = 1 pF. One or two digits alone are plain picofarads, and R marks a decimal point (4R7 = 4.7 pF).
Tolerance letters
B ±0.1 pF, C ±0.25 pF, D ±0.5 pF, F ±1%, G ±2%, J ±5%, K ±10%, M ±20%, Z +80/−20%.
Voltage codes
A digit-letter prefix gives the rated voltage (EIA): 0J 6.3 V, 1A 10 V, 1C 16 V, 1E 25 V, 1V 35 V, 1H 50 V, 1J 63 V, 2A 100 V, 2D 200 V, 2E 250 V, 2G 400 V, 2J 630 V. So 2A104J is 100 nF, ±5%, 100 V.