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What is the difference between adjustable resistors and ordinary resistors?
Jan 29, 2018

What is the difference between adjustable resistors and ordinary resistors?


Adjustable resistors and general resistance of the appearance there is a big difference. Adjustable resistance has some unique features, in the circuit board can easily identify adjustable resistance.

First, the material adjustable resistance can be divided into a carbon film adjustable resistance and ceramic adjustable resistance;

Second, the adjustable resistance will have an adjustment of the rotating port, with a screwdriver can change the piece, the resistance adjustment;

3, the adjustable resistance than the average resistance to large, but less variable resistance in the circuit, it is easy to find in the circuit board to adjust the resistance;

Fourth, the adjustable resistance can be seen on the label of his resistance, resistance refers to the resistance between the two fixed-chip pins, which is the fixed chip pin and the pin between the maximum;

Fifth, the adjustable resistor has three pins, and these three pins are different, one for the moving piece pin, the other two with the fixed piece pin. The two fixed-chip pins are generally interchangeable, but the movable chip pins and fixed-chip pins can not be used interchangeably;

Sixth, the smaller plastic housing has a smaller, variable-volume resistor in a circular configuration with three pins down and a resistance adjustment up. Some of the variable resistors for larger power applications, large volume, moving piece can slide around for resistance adjustment;

7th, the vertical adjustable resistor is mainly used in small signal circuit, the pin down, mounted vertically on the circuit board, the resistance of the adjustment port in the horizontal direction, the horizontal resistance of the pin and resistance plane was 90 Degree down vertically, supine on the circuit board, adjust the mouth up