✔ Reading Disc Capacitor Values

Reading Disc Capacitor Values

- April 27, 2018

Guide detailed picture reading a capacitor value. Slight variations are common so look for the value that most closely matches the units above.

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Thatd make 11p 11 picofarads and 75pk.

Reading disc capacitor values. These are read as pico farads. Additionally capacitors that are polarizedthey have a and a leadalso carry a polarization marking. Theyre magenta disks with values like 1p5 6p8 11p and 75pk on them.

The digits 10 followed by one additional zero. Capacitors are routinely marked with at least their capacitance value. For example 101 represents 100 pf.

For example if a capacitor says 10 upon it it has a multiplier of 1 and is simply read as 10pf. Ignore capital letters in the units. If any capacitor has 10 printed on it then its value is 10 pf when any capacitor has 104 printed it has multiplier of 4 third number of code.

The first two digits indicate the basic values of the capacitors. Large capacitors usually have their value printed plainly on them such as 10uf ten micro farads but smaller disk types along with plastic film types often have just 2 or three numbers on them. You may need to adjust for the following.

The resulting number is the capacitance in pf. A ceramic disc capacitor does not have a polarity and connects in any direction on the printed circuit board. If you are new to capacitor codes then the best way to start is with a chart because that way you can see the arrangement of the code.

Then its value is 1010000 100000pf last number is the power of 10 and multiply with first two no. Either 75000 picofarads or 75 picofarads at 10 tolerance. If there is no multiplier you just read the value of the first two numbers in picofarads.

Will the third digit indicate a multiplier to be used on the base number to find. If you have a capacitor that has nothing other than a three digit number printed on it the third digit represents the number of zeros to add to the end of the first two digits. When the first two numbers are multiplied against the multiplier the resulting solution is the value of the capacitor in picofarads.

First most will have three numbers but sometimes there are just two numbers. 10 is multiplied by 1010 4 10000. Without a capacitance meter i am forced to guess but if 1n5 is 15 nanofarads would 1p5 be 15 picofarads.

Hence the value of the capacitor above is 47000 pf 5. Most large capacitors have a capacitance value written on the side. Read the capacitance value.

Many capacitors are also marked with value tolerance notation and a breakdown voltage.