Understanding of Surface mount Resistors 2

2. Color ring nominal method (generally used for cylindrical fixed resistors)

Surface mount resistors, like regular resistors, mostly use four rings (sometimes three rings) to indicate their resistance values. The first and second rings are significant digits, and the third ring is the magnification (color code shown in Table 1).diode

For example, "brown green black" represents "15 Ω"; "blue gray orange silver" represents "68k Ω" with an error of ± 10%.diode

3. E96 numerical code and mixed nominal method of event mother

The mixed nominal method of numerical code and letter also uses three digits to indicate the resistance value, that is, "two digits plus one letter", where the two digits represent the E96 series resistance code. Please refer to Appendix 2 for details. Its third digit is the magnification represented by letter codes (as shown in Table 3).

For example, "51D" represents "332x103; 332k Ω"; 249Y "represents" 249x10-2; 2.49 Ω "diode