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Capacitor Value Reference

Part of Electronics For Dummies Cheat Sheet (UK Edition)

The first two digits of a capacitor value reference give you a number that you then divide or multiply by factors of ten according to the value of the third digit.

Marking Value (in microfarads – µF – unless otherwise
stated)
Nn Picofarads (nn is a number from 01 to 99)
101 100 pF
102 0.001
103 0.01
104 0.1
221 220 pF
222 0.0022
223 0.022
224 0.22
331 330 pF
332 0.0033
333 0.033
334 0.33
471 470 pF
472 0.0047
473 0.047
474 0.47