Which is more suitable for high-precision circuits, alloy resistors or ordinary resistors

Compared to ordinary resistors, alloy resistors are more suitable for high-precision circuits, mainly based on the comparison of the following aspects:

1、 Accuracy and stability
Alloy resistance: Known for its high precision and excellent stability, it can maintain a constant resistance value under various environmental conditions. Alloy resistors use special alloys as resistor materials, which have excellent electrical properties and physical stability, ensuring high precision and long-term stability of resistance values.
Ordinary resistor: Its accuracy and stability are relatively low, and it is easily affected by external factors such as temperature and humidity. Ordinary resistors are usually made of materials such as carbon film, metal film, or metal wire, which have relatively ordinary properties.
2、 Temperature coefficient
Alloy resistance: A small temperature coefficient means that its resistance value does not change significantly with temperature changes, which is particularly important for circuits that require stable resistance values.
Ordinary resistor: The temperature coefficient is relatively large, and temperature changes have a more significant impact on its resistance value.
3、 Power bearing capacity
Alloy resistors: typically capable of withstanding higher power and suitable for situations that require handling high currents or voltages.
Ordinary resistors have relatively limited power tolerance and are more suitable for low-power applications.
4、 Application Fields
Alloy resistors: Due to their high performance, they are often used in applications that require extremely high precision and stability, such as precision measurement, medical equipment, aerospace, and other fields.
Ordinary resistors are more commonly used in general electronic devices, household appliances, and other common application scenarios.
5、 Manufacturing cost and market price
Alloy resistors: The manufacturing process is relatively complex and requires advanced technology and equipment for processing and testing, resulting in higher manufacturing costs and market prices typically higher than ordinary resistors. However, in situations where high-performance resistors are required, the cost-effectiveness of alloy resistors is often higher.
Ordinary resistors have relatively low manufacturing costs, are suitable for large-scale production and application, and have a more affordable market price.
In summary, alloy resistors are superior to ordinary resistors in terms of accuracy, stability, temperature coefficient, and power tolerance, making them more suitable for high-precision circuits. Although the manufacturing cost and market price of alloy resistors are high, their cost-effectiveness is still high in situations where high performance is required.