Capacitor Code Decoder

Enter Code (3 or 4 digits) 3-digit: ABx (pF). 4-digit: ABCx (pF)

Unit Preference

📖 Frequently Asked Questions (FAQ)

1. What do the numbers on a ceramic capacitor mean?

The numbers form a code indicating the capacitance value in picofarads (pF). The first two digits are the significant figures, and the third digit is the multiplier (the power of ten).

2. How do I read a code like "104"?

The code "104" is decoded as follows:

10: The first two digits are "10".
4: The multiplier is 10⁴ (which is 10,000).
Calculation: 10 × 10,000 = 100,000 pF. This value is more commonly expressed as 100 nF or 0.1 µF.

3. What are pF, nF, and µF?

These are units of capacitance. pF stands for picofarad, nF for nanofarad, and µF for microfarad. The conversions are: 1,000 pF = 1 nF, and 1,000 nF = 1 µF.

4. What is a capacitor's voltage rating?

The voltage rating, printed on the capacitor body, is the maximum voltage that can be safely applied across it. Exceeding this voltage can permanently damage the capacitor.