Capacitance is calculated as 10x 104 = 105pf = 0.1uf.Capacitor shown above has notation 104 on it.Step 2:Some of them have three numerical values. In place of R if the letters like p, n, u are present then they represent units of capacitance.Some capacitors have letters in the second position and numerical value in first position. If the notation on the capacitor has 2 digits and a letter (like 22M) ,then it has capacitance value of 22.Step 1: If the capacitor has two numerical values. Generally capacitance of ceramic, tantalum ,film capacitors is expressed in Pico Farad.
Let us see how to calculate these values. So capacitance on these capacitors is represented using short hand notation. Reading the values of small capacitors(ceramic capacitors)Ĭeramic capacitors have very small area to print the value of capacitance. Tolerance value represents the variation of capacitance value.
But for small capacitors like ceramic capacitors, as the space is not enough, capacitor values are represented using shorthand notation. Along with the capacitance other values like tolerance and voltage were written on the capacitor itself if there is enough space. Let us see how to read the capacitor values with numbers and alphabets. How to read capacitor value written on capacitors?