What is a precision resistor and what are the common types of precision resistors? 1

Precision resistors refer to those resistors with high-precision resistance values, which are used in circuits to ensure precise control of current or voltage. Compared with ordinary resistors, precision resistors have lower tolerances (i.e. the maximum allowable deviation percentage during production), better temperature coefficients (temperature has less impact on resistance values), and excellent long-term stability. These characteristics make precision resistors widely used in precision instruments, measuring equipment, advanced audio equipment, medical equipment, and any place that requires high-precision electrical circuits.diode

Common types of precision resistors

1. Metal film resistor:

Metal film resistors are made by coating a thin metal film on a ceramic or plastic rod. This type of resistor has high accuracy and stability, with a typical tolerance between 0.5% and 1%, and a low temperature coefficient. They are widely used in situations that require stability and accuracy.diode