Understand the difference between alloy resistance and ordinary resistance

In the field of electronic components, resistors are a common component used for controlling current, voltage division, current limiting, etc. According to the material and manufacturing process of resistors, they can be divided into many types, among which the most common are alloy resistors and ordinary resistors. So, what is the difference between alloy resistance and ordinary resistance? This article will provide you with a detailed introduction from the following aspects

Material differences

1 Alloy resistance: Alloy resistance is made of metal materials, mainly composed of copper, nickel, zinc, etc. These metals are combined together through special processes to form alloy materials with specific properties, thereby achieving specific electrical resistance properties. Alloy resistors have high temperature stability, corrosion resistance, and processability

2 Ordinary resistance: Ordinary resistance is usually made of materials such as ceramics or manganese copper. Ceramic resistors have good temperature stability and low resistance range, suitable for high-precision and high stability application scenarios; Manganese copper resistors have lower costs and better linear performance, making them suitable for general applications

Differences in manufacturing processes

1 Alloy resistance: The manufacturing processes of alloy resistance mainly include powder metallurgy, electroplating, and vacuum evaporation. Among them, powder metallurgy is the most commonly used manufacturing method, which involves melting metal powder at high temperature and pressing it into shape, then cooling and solidifying it at a specific temperature to form resistance components with specific structures and properties

2 Ordinary resistors: The manufacturing process of ordinary resistors mainly includes thin film deposition method, thermistor method, and metal wire winding method. Among them, thin film deposition method is the most common manufacturing method, which involves coating a layer of thin film with a specific material on the substrate, and then conducting heat treatment under specific conditions to form a conductive channel for the thin film, thereby achieving resistance function

Performance differences

1 Alloy resistance: Due to the special nature of the material and manufacturing process of alloy resistance, its performance is usually superior to ordinary resistance. Alloy resistors have high accuracy, low temperature coefficient (TCR), and small rate of resistance change（ Δ R) At the same time, it also has good anti-interference ability and anti-aging performance

2 Ordinary resistors: Although their performance is relatively poor, they are still favored by the market due to their low cost and wide application. Ordinary resistors are mainly used in situations where accuracy is not high and stability is low

The main difference between alloy resistance and ordinary resistance lies in the material, manufacturing process, and performance. Alloy resistors have higher material purity, better manufacturing accuracy, and superior performance, making them widely used in some high-end application scenarios; Although ordinary resistors have poor performance, they are low-cost and widely used, still an important component of the electronics industry. I hope this article can help you better understand the difference between alloy resistance and ordinary resistance, and provide reference for your practical application