# Difference between revisions of "capacitor picofarad codes"

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Small value capacitors are marked with a three digit code that indicates their capacitance in picofarads. The code is basically scientific notation. The first two digits are the '''significand coefficient''' (the most significant digits of the value) and the third digit is the power of 10 exponent. So a capacitor marked as '''105''' should be interpreted as '''10 × 10<sup>5</sup> picofarads''' or '''10E5 picofarads''' in ''E notation''. That's a million picofarads, which is also called 1 microfarad (1 uF). | Small value capacitors are marked with a three digit code that indicates their capacitance in picofarads. The code is basically scientific notation. The first two digits are the '''significand coefficient''' (the most significant digits of the value) and the third digit is the power of 10 exponent. So a capacitor marked as '''105''' should be interpreted as '''10 × 10<sup>5</sup> picofarads''' or '''10E5 picofarads''' in ''E notation''. That's a million picofarads, which is also called 1 microfarad (1 uF). | ||

+ | |||

+ | ; 10: 10 pF | ||

+ | ; 15: pF | ||

+ | ; 22: pF | ||

+ | ; 33: pF | ||

+ | ; 47: pF | ||

+ | ; 68: pF | ||

+ | ; 101: 100 pF | ||

+ | ; 151: 150 pF | ||

+ | ; 221: 220 pF | ||

+ | ; 331: pF | ||

+ | ; 471: pF | ||

+ | ; 681: pF | ||

+ | ; 102: 1000 pF, 1 nF, 0.001 uF | ||

+ | ; 152: | ||

+ | ; 222: pF | ||

+ | ; 332: pF | ||

+ | ; 472: pF | ||

+ | ; 682: pF | ||

+ | ; 103: pF, 10 nF, 0.01 uF | ||

+ | ; 153: pF | ||

+ | ; 223: pF | ||

+ | ; 333: pF, 33 nF, 0.033 uF | ||

+ | ; 473: pF | ||

+ | ; 683: pF | ||

+ | ; 104: pF, 100 nF, 0.1 uF | ||

+ | ; 224: | ||

+ | ; 474: | ||

+ | ; 684: | ||

+ | ; 105: 1000000 pF, 1000 nF, 1 uF | ||

+ | |||

+ | |||

+ | Note that ceramic multilayer and tantalum capacitors can look alike. Tantalum are usually polarized. The positive terminal will be marked with a line and a + symbol. |

## Latest revision as of 04:24, 6 November 2014

Small value capacitors are marked with a three digit code that indicates their capacitance in picofarads. The code is basically scientific notation. The first two digits are the **significand coefficient** (the most significant digits of the value) and the third digit is the power of 10 exponent. So a capacitor marked as **105** should be interpreted as **10 × 10 ^{5} picofarads** or

**10E5 picofarads**in

*E notation*. That's a million picofarads, which is also called 1 microfarad (1 uF).

- 10
- 10 pF
- 15
- pF
- 22
- pF
- 33
- pF
- 47
- pF
- 68
- pF
- 101
- 100 pF
- 151
- 150 pF
- 221
- 220 pF
- 331
- pF
- 471
- pF
- 681
- pF
- 102
- 1000 pF, 1 nF, 0.001 uF
- 152
- 222
- pF
- 332
- pF
- 472
- pF
- 682
- pF
- 103
- pF, 10 nF, 0.01 uF
- 153
- pF
- 223
- pF
- 333
- pF, 33 nF, 0.033 uF
- 473
- pF
- 683
- pF
- 104
- pF, 100 nF, 0.1 uF
- 224
- 474
- 684
- 105
- 1000000 pF, 1000 nF, 1 uF

Note that ceramic multilayer and tantalum capacitors can look alike. Tantalum are usually polarized. The positive terminal will be marked with a line and a + symbol.