Wire wound resistor is wound on the insulating frame after treatment with resistance wire insulation package
A resistor is formed, as shown in the figure, made of nickel chromium, manganese and other alloy resistance wire with a resistivity of insulating frame, metal frame, plastic, coating with ceramic insulating layer. With low temperature coefficient, high precision. Online wound resistor, a ceramic frame, in the outer enamel resistor or other heat insulation and good heat dissipation of high power wire wound resistor, as shown in the figure the characteristics of wire wound resistor is power dissipation, up to hundreds of watts, mainly used for high power load, which can work in 150 ~300 degree centigrade temperature environment.
Online wound resistor, and an adjustable wire wound resistor, it is wound outside a removable card ring as a contact terminal, in the glaze layer (paint) left a narrow window, a winding road through the contact card contact, ring in contact with the road mobile can adjust the resistance therefore, a variable resistor. Common wire wound resistors are glazed and painted wirewound resistors two.