The difference between alloy resistance and ordinary resistance

In a circuit, a resistor is a very basic component used to limit the flow of current. In resistance components, alloy resistors and ordinary resistors are two common types. They differ in materials, properties, and applications. Below, we will introduce the characteristics and differences between alloy resistors and ordinary resistors

Alloy resistance is a type of resistance component manufactured using alloy materials. The materials used in alloy resistors mainly include nickel chromium alloys, nickel chromium iron alloys, etc. These alloy materials have high electrical resistivity and can provide stable and reliable resistance values. Alloy resistance has a high temperature coefficient, meaning that the change in resistance value is relatively small when the temperature changes. This enables alloy resistors to maintain stable resistance performance in high-temperature environments

On the other hand, ordinary resistors are usually made of materials such as carbon film and metal film. These materials have lower electrical resistivity and are typically used to manufacture resistance components with lower resistance values. The temperature coefficient of a regular resistor is lower, which means that there will be a certain change in the resistance value when the temperature changes. Therefore, in high-temperature environments, the resistance performance of ordinary resistors may be affected

In terms of performance, alloy resistors typically have higher power carrying capacity. Due to the high electrical resistivity of alloy materials, alloys of the same length can provide a larger resistance value. This enables alloy resistors to carry greater power at the same size, making them more suitable for some high-power applications

On the other hand, the power carrying capacity of ordinary resistors is relatively low. Due to the low resistivity of ordinary resistive materials, their resistance values are relatively small. This results in a smaller resistance value provided by ordinary resistors at the same size, and correspondingly lower power carrying capacity. Therefore, in some circuits that require high power, ordinary resistors may not meet the requirements

In terms of application, alloy resistors are usually used in high-precision circuits. Due to the stable resistance value and temperature characteristics of alloy resistors, they can provide high accuracy and stability. Therefore, in some circuits that require high resistance values, alloy resistors are usually chosen

On the other hand, ordinary resistors are usually used in some general application circuits. Due to the low cost and simple manufacturing process of ordinary resistors, they are usually used in circuits that do not require high resistance values and accuracy. Ordinary resistors are widely used in general electronic products, such as household appliances, mobile phones, etc

There are certain differences between alloy resistors and ordinary resistors in terms of materials, properties, and applications. Alloy resistors have high electrical resistivity, temperature coefficient, and power carrying capacity, making them suitable for high-precision circuit applications; Ordinary resistors have lower resistivity, temperature coefficient, and power carrying capacity, making them suitable for circuit applications in general electronic products. When selecting resistor components, it is necessary to choose the appropriate type of resistor based on actual needs to ensure the stability and reliability of circuit performance