Fuse resistor

Abstract

The invention discloses a fuse resistor, comprising an outgoing line, a protective layer and a resistor color circle mark coating. The outgoing line is connected with caps. The caps are located at the inner side of the protective layer. The caps are symmetrically arranged at two ends of a metal conductive layer. A resistance band is winded on the outer wall of the metal conductive layer. Temperature isolation plates and side plates are arranged between the caps and the metal conductive layer. The side plates are close to the sides of the caps. A basic framework is packaged in the metal conductive layer. Wiring terminals at two ends of the basic framework are connected with the caps. Cutting slots are arranged on the inner wall of the basic framework. Epoxy resin blocks are filled in the cutting slots. The fuse resistor is good in electrical stability and fuse effect. The resistor is protected through a high temperature resistant layer, so the service life of the resistor is effectively prolonged. The resistor has a good temperature coefficient and relatively high resistance value precision. The performance is excellent. A new kind is increased in the electronic market. The sale of the electronic market is expanded.

Description

technical field [0001] The invention relates to the technical field of fuse resistors, in particular to a fuse resistor. Background technique [0002] The fuse resistor is a special component integrating a resistor and a fuse. Its functional characteristics are: it can work normally for a long time under the condition of rated working voltage or current, and it can be used as a normal resistor. When a voltage exceeding the rated working voltage appears in the circuit , When the current is high, the fuse resistor is overheated and blown to protect the circuit. However, the current fuse resistors usually cannot be fused according to the specified voltage and current values ​​when the circuit has an abnormal voltage and current impact, and cannot protect the circuit as it should, and even cause irreparable losses to industrial production. . At present, there are many metal film resistors on the market, but most of them are not simple enough in structure, do not have good temp...

AI Technical Summary

Problems solved by technology

However, the current fuse resistors usually cannot be fused according to the specified voltage and current values ​​when the circuit has an abnormal voltage and current impact, and cannot protect the circuit as it should, and even cause irreparable losses to industrial production.

At present, there are many metal film resistors on the market, but most of them are not simple enough in structure, do not have good temperature coefficient and high resistance value accuracy, which affect the overall performance; moreover, the external high temperature can easily cause the resistance of the resistor. The damage of components reduces the service life of resistors. In addition, ordinary resistors cannot meet the needs of equipment in specific high-temperature environments.

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