What are the parameters of alloy resistors and ordinary resistors

The main parameters and characteristics of alloy resistors and ordinary resistors are as follows:

Parameters and characteristics of alloy resistors:
1. Low resistance: Alloy resistors typically have low resistance characteristics, ranging from 0.2mR to 750mR.
2. High power: Alloy resistors can withstand high power ranging from 0.5W to 4W.
3. High precision: Alloy resistors have high precision, with an error range typically between 0.5% and 1%.
4. Low Temperature Coefficient (TCR): Alloy resistors have a low temperature coefficient ranging from 50ppm to 100ppm.
5. High reliability: Alloy resistors have high reliability due to their alloy materials and can operate stably in high current and high temperature environments.
6. Impact current resistance: Alloy resistors can withstand large impact currents.
7. Material: Alloy resistors are usually made of metal alloys, such as manganese copper alloy, iron chromium aluminum alloy, etc.
8. Size range: The size range of alloy resistors is from 0402 to 4527.

Parameters and characteristics of ordinary resistors:
1. Resistance range: The resistance range of ordinary resistors is relatively wide, ranging from 1 Ω to 10M Ω.
2. Stability: Ordinary resistors have higher quality stability, but compared to alloy resistors, they may be slightly inferior in temperature changes and long-term stability.
3. Noise: Ordinary resistors, especially carbon film resistors, have less noise and are suitable for circuits that require low noise.
4. Price: Ordinary resistors are relatively inexpensive and suitable for large-scale applications.
5. Temperature coefficient: The temperature coefficient of ordinary resistors may be higher than that of alloy resistors, which means that the resistance value may change more significantly under temperature changes.
6. Rated power: The rated power range of ordinary resistors varies from very small values to a few watts, depending on the type and size of the resistor.
7. Materials: Ordinary resistors may be made of materials such as carbon film, metal film, or metal oxide film.

In summary, alloy resistors are usually superior to ordinary resistors in terms of accuracy, stability, temperature coefficient, and power carrying capacity, but ordinary resistors have advantages in cost and wide application. The choice of which type of resistor to use depends on the specific application requirements.