Wirewound resistors are one of the most common resistors, and many engineers prefer to use wirewound resistors when using resistors. Generally, a wire is used for a wire-wound resistor. Usually, a wire made of an alloy material such as nickel-chromium or manganese-copper is used, and then a wire-wound resistor is formed around the insulating frame. The wire is wound according to different requirements. Or by winding multiple layers, it will also be produced by a non-inductive winding method.

Many engineers like to use wirewound resistors. In fact, wirewound resistors do the functions of voltage division, buck, shunt and load in AC and DC circuits. Engineers can make good use of these characteristics in precision instruments, telecommunication instruments and electronic equipment circuit.

We know that the reason why the wirewound resistor is widely used is because the resistance of the wirewound resistor is extremely high, the noise is small, stable and reliable during operation, the temperature coefficient is small, and it can withstand high temperature, and can still work normally at an ambient temperature of 170 °C. Although wire wound resistors have so many advantages, they also have disadvantages such as large volume and low resistance, and for structural reasons, wirewound resistors cannot be used in high frequency circuits.

Wirewound resistors are used in home appliances, medical equipment, automotive, railway, aerospace, military equipment and other fields. With the improvement of production technology, the winding resistance is applied in the oscillating circuit and the attenuation adjustment in the transformer and the shunt in the pulse forming circuit. At present, more and more fields use wirewound resistors, which require further improvement in the production materials and processes of wirewound resistors. In the future, wirewound resistors will be used in more fields such as buck, shunt, load, feedback, energy transfer, and matching.