Monday, 2 January 2012

How To Read SMD Capacitor

Surface Mount Capacitor
Surface mount capacitor are usually of brownish or yellowish colour, from the colour one can identify whether given component is capacitor to some extent.


But Most SM capacitors values are not identified in any way by visualising ,most of them think that they are identified according to there size but SIZE OF THE COMPONENTS DOES NOT INDICATE THE CAPACITANCE as each capacitor has a different number of layers according to there manufacturer.

The only way to "read" the value of these SM capacitor is via a capacitance meter.

But some of the SM capacitor has number on there surface as that of SM resistor (A three digit number or alphabets).


Similarly as SM resistor there values are indicated, i.e if the number is 107 then first two digit are the answer and the third digit is the number of zero's.
107 = 10 (two numbers) 0000000 (seven zero's)
These value of capacitor is given in pf, hence the value is 100000000pf = 100uf (100 microfarad).

6 comments:

  1. Thank you for sharing this great tutorial on reading these capacitors!

    ReplyDelete
  2. hey what it mean to have a 1A5 in a surface mount ceramic capacitor? 1A5 or IA5

    ReplyDelete
    Replies
    1. NO PROPER WORD PLS READ CAREFULLY

      Delete
  3. as per resister deatile as,
    01A=100ohms
    01b=1kohms
    01c=10kohms
    to be continued

    ReplyDelete
  4. hi
    I have a shorted SMD capacitor without code how can I find the code of the capacitor.
    Pls help

    ReplyDelete
    Replies
    1. You cannot find the code of capacitor, but if the capacitor is working you can measure the capacitance using capacitance meter.
      Or else manufacturer can help you......

      Delete

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