Views: 3 Author: Site Editor Publish Time: 2018-07-06 Origin: Site
(4) Marking method of imported capacitors: Imported capacitors generally have six components.
The first item: the category is represented by letters:
The second item: the two-digit number indicates its shape, structure, packaging method, lead start and relationship with the axis.
The third item: the temperature characteristics of temperature-compensated capacitors, useful letters, and also useful colors, the meaning of which is shown in the following table:
No. Letter Color Temperature coefficient Allowable deviation Letter Color Temperature coefficient Allowable deviation
1 A gold +100 R yellow -220
2 B ash +30 S green -330
3 C black 0 T blue -470
4 G ±30 U purple -750
5 H brown -30 ±60 V -1000
6 J ±120 W -1500
7 K ±250 X -2200
8 L red -80 ±500 Y -3300
9 M ±1000 Z -4700
10 N ±2500 SL +350~-1000
11 P Orange -150 YN -800~-5800
The fourth item: the withstand voltage is represented by numbers and letters, the letters represent valid values, and the numbers represent powers of 10 of the multiplicand.
The fifth item: the nominal capacity, expressed by three digits, the first two digits are valid values, and the third is a power of ten. When there is a decimal, it is represented by R or P. The unit of the ordinary capacitor is pF, and the unit of the electrolytic capacitor is uF.
Item 6: Allowance deviation. Expressed in one letter, the meaning is the same as that of a domestic capacitor. Also useful for color-coded methods, the meaning is the same as that of domestic capacitors.
