What are the differences in performance between alloy resistors and regular resistors

There are significant differences in performance between alloy resistors and ordinary resistors, which are mainly reflected in 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. Common accuracy levels include 1%, 0.5%, 0.1%, etc., which are suitable for precision circuits and measurement applications.
Ordinary resistors have relatively low accuracy and stability, and are easily affected by external factors such as temperature and humidity, leading to changes in resistance values.
2、 Temperature coefficient
Alloy resistance: A small temperature coefficient means that its resistance value does not change significantly when the temperature changes. This is particularly important for circuits that require stable resistance values, especially in environments with significant temperature changes.
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 scenarios
Alloy resistors: Due to their high-performance characteristics, 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、 Composition materials
Alloy resistors: Special alloys are used as resistor materials, which have excellent electrical properties and physical stability.
Ordinary resistors are usually made of materials such as carbon film, metal film, or metal wire, which have relatively ordinary properties.
6、 Packaging form
Alloy resistors: There are various packaging forms, including surface mount, plug-in, screw type, etc., which are convenient for installation and use in different application scenarios.
Ordinary resistors: The packaging form is relatively fixed and may not be as diverse as alloy resistors.
In summary, there are significant differences between alloy resistors and ordinary resistors in terms of accuracy and stability, temperature coefficient, power bearing capacity, application scenarios, constituent materials, and packaging forms. These differences enable them to play their unique roles in different application scenarios. When selecting resistors, the appropriate type of resistor should be chosen according to the specific requirements of the application scenario.