Resister is denoted by " R "
Function : To oppose the flow of current
Unit of Resister : ohm,
- 1000ohm = 1k ohm
- 1000k ohm = 1m ohm
- 1000m ohm = 1g ohm
Types:
- Analog
- Digital
Analog:
Examples
3 bands:
Yellow, violet, black --> 47 ohm 20%
Orange, orange, brown --> 330 ohm 20%
Brown, black, red --> 1k 20%
4 bands:
Green, blue, red, gold --> 5.6kohm 5%
Red, yellow, orange, gold --> 24kohm 5%
Blue, gray, yellow, silver --> 680k 10%
More 4 band resistor color code
5 bands:
Red, yellow, orange, black, brown --> 243 ohms, 1% precision 5-band resistor
Yellow, violet, GOLD
, gold, yellow --> 4.7 ohms, 5% -
this resistor is calculated with the 4-band rule (the yellow band is ignored).
Orange, black, black, brown, brown --> 3.00 k ohms, 1% - note: this is a non-standard 1% (E96) resistor, but some manufacturers make every value from the E24 series with 1% tolerance!
More: 5 band
6 bands:
Red, red, brown, brown, brown, red --> 2.21k, 1% 50ppm/°C
White, black, white, brown, red, red --> 9.09k, 2% 50ppm/°C
- do not enter the last band (red in the two examples above)
Color Code:
Digital:
Checking Process :
100ohm = 95 ohm, 105 ohm is ok
Damage condition
- < 95 ohm
- No Value
- Beep or 000
