What is a color ring resistor and how to correctly identify it? 3

5. Read the temperature coefficient (if any):

On a 6-ring resistor, the last color ring displays the variation of resistance with temperature, expressed in ppm/° C (parts per million Celsius).diode

Here are some examples to illustrate how to read the color ring electric valve:

Example 1 (4-channel resistor): Brown, black, red, gold. This indicates a resistance value of 1 (brown), 0 (black), x 100 (red multiplier)=1000 Ω or 1k Ω, with a tolerance of ± 5% (gold).diode

Example 2 (5-ring resistor): Green, blue, black, red, brown. This indicates a resistance value of 5 (green), 6 (blue), 0 (black), x 100 (red multiplier)=5600 Ω or 5.6k Ω, with a tolerance of ± 1% (brown).

Example 3 (6-ring resistor): Orange, white, black, black, brown, blue. This indicates a resistance value of 3 (orange), 9 (white), 0 (black), x 1 (black multiplier)=390 Ω, with a tolerance of ± 1% (brown) and a temperature coefficient of 25 ppm/° C (blue).

Correctly identifying color ring resistors requires familiarity with color coding and rules, and continuously improving recognition speed and accuracy in practice. There are many online tools and mobile applications that can help beginners practice and test their color ring reading skills. In addition, with the advancement of technology, some electronic component manufacturers may also use other methods (such as digital printing or barcodes) to express the resistance and tolerance of resistors.diode