The wire winding resistor is a type of resistor with a resistive wire to be treated on an insulating package on an insulating frame. As shown, the resistive wire generally uses a certain resistivity nickel-chromium, manganese copper and other alloys, insulating The skeleton generally uses ceramics, plastic, metal skeletons of the insulating layer. It has the characteristics of small temperature coefficient and high precision. In the wire-wrap resistor, there is a high-power wire with a ceramic to be a skeleton, a high-power wire having a glazed or other heat-resistant and other heat resistance and a good heat dissipation, and the wire resistor is the exhaustive power. However, there are hundreds of tiles, mainly used as high-power load, which can work in a temperature of 150 ° C to 300 ° C.
In the wire winding resistor, there is also a tunable winding resistor, which is a movable card ring in the outer surface of the wire as a contact lead, which has a narrow window on the glaze (paint) layer, revealing winding The contact channel, the snap ring can adjust the resistance by moving on the contact hole through the contact, so it is a variable resistor. Commonly known enamel wire wind resistors and painted wire wind resistors.