One of the chip resistors, the alloy is the resistance of the material, we usually call it current sense resistor or alloy resistor. In many cases, circuit engineers use it to sample large currents in the circuit. All of these resistors are also called alloy sampling resistors. As a current carrier, alloy chip resistors have precise resistance, temperature stability, product safety and stability, which are significantly higher than ordinary ceramic resistors. Due to its functional characteristics, the application of alloy chip resistors is also very extensive. To analyze the function and application of the alloy chip resistor.

 First, the alloy chip resistor type
The alloy chip resistor has a resistance range of 0.5mΩ to 600mΩ and a power range of 1/4W-5W. The temperature coefficient ranges from 25 to 50PPM. Usually there are many model size on the market: 0603, 0805, 1206, 2010, 2512, 2725, 2728 and 4527. Each type has a different dimension and is also a big difference in application.
  Second, the alloy chip resistors use materials
We know that this type of resistor uses the alloy as the current medium to detect the current. It is usually divided into a resistor alloy for a precision resistor, a varistor and a heating element. The main material of the alloy chip resistor is copper metal material, and other materials become constantane alloy, manganese copper alloy and so on. Due to the large number of auxiliary materials for the production of alloy chip resistors, the material itself determines the properties of the alloy chip resistors.

 
Third, the application of alloy chip resistors
 Alloy metal has good electrical conductivity and good thermal conductivity. Therefore, the resistance can easily reach 0.5-600mΩ, and it can also reach a large power. Therefore, it is often used for sampling large currents in circuits and changing currents in feedback circuits so as to further control or influence the change of current. Therefore, alloy chip resistors are mainly used in power supplies, inverters/converters, lithium battery protection boards, automotive-related spaces, notebooks, computer motherboards, and LED drivers, LCD control board battery protection boards, power supplies, inverters, and lamps. , motor, etc. 

The alloy chip resistors meet the characteristics of high-power electrical characteristics, high purity, high thermal conductivity, low temperature drift and high temperature resistance. They have broad prospects in many markets, especially in high current environment circuits where alloy chip resistors are used more in the future. In the development of materials, alloy resistance will be more developed and applied. Resistance accuracy, low temperature drift, refined designer resistance trend of the alloy, is also a requirement for downstream electronic products.