Electrolytic Capacitors

Radial aluminium electrolytic capacitors from 0.1µF to 6800µF, 16V to 450V, sorted by value. They are polarised: the long leg is +, the striped side is −. Use them for power supply smoothing, decoupling and audio coupling, and pick a voltage rating above your circuit voltage.

Capacitor code reader Type the number printed on a ceramic or film capacitor
100 nF
= 0.1 µF = 100,000 pF
Shop 104 capacitors

First two digits 10, then 4 zeros: 10 0000 pF.

The first two digits are the value and the third is how many zeros to add, in picofarads (pF). A letter after the number is the tolerance (J ±5%, K ±10%, M ±20%). On film capacitors a code like 2A or 2J in front is the voltage. Electrolytic capacitors print the value directly (for example 100µF 25V) and the stripe marks the negative leg.

About Electrolytic Capacitors

Radial aluminium electrolytic capacitors from 0.1µF to 6800µF, 16V to 450V, sorted by value. They are polarised: the long leg is +, the striped side is −. Use them for power supply smoothing, decoupling and audio coupling, and pick a voltage rating above your circuit voltage.

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