描述
Variable Resistor Series
Variable resistors, resistors whose resistance can be adjusted, are used in situations where circuit current needs to be adjusted or circuit resistance needs to be changed. Variable resistors can change the characteristics of a signal generator, dim lights, start a motor or control its speed. Depending on the application, the resistance material of the variable resistor can be metal wire, metal sheet, carbon film or conductive liquid.
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Mainly used as high resistance high voltage resistor. Its use is the same as that of high voltage resistors.
Wirewound resistors are characterized by extremely high resistance value accuracy, low noise during operation,
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描述
The mixture of carbon black, resin, clay, etc. is pressed and made by heat treatment.
Cement resistors, resistors potted with refractory mud, with special non-flammable heat resistance
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