How do you see the stencil capacitor naming rules? (I)

1. The model names of capacitors in various countries are very different. The naming of domestic capacitors consists of four parts:

The first part: the name is represented by a letter, and the capacitor is C.

The second part: the material is represented by letters.

The third part: the classification is represented by numbers.

Part: The serial number is represented by a number.

2. The method of marking the capacitor:

(1) Straight standard method: The model and specification are directly marked on the outer casing by letters and numbers.

(2) Text symbol method: The capacity is represented by a regular combination of numbers and text symbols. The word symbol indicates the unit of its capacitance: P, N, u, m, F, and so on. It is expressed in the same way as the resistor. The nominal allowable deviation is also the same as the resistance representation. For capacitors less than 10 pF, the allowable deviation is replaced by a letter: B--±0.1 pF, C--±0.2 pF, D--±0.5 pF, F--±1 pF.

(3) Color scale method: Same as the resistance method, the unit is generally pF. The withstand voltage of small electrolytic capacitors is also known by the color scale method. The position is close to the root of the positive lead wire. The meanings are as follows:

Color black brown red orange yellow green blue purple gray

Withstand voltage 4V 6.3V 10V 16V 25V 32V 40V 50V 63V