There are many types of resistors. The commonly used resistors include carbon film resistors, cement resistors, metal film resistors, and wire-wound resistors; special resistors include varistors, thermistors, and photoresistors. Different types of resistors have certain differences in their characteristic parameters, and the points that need to be considered when using the circuit are also different. For engineers who have just come into contact with the circuit design, it is likely to ignore some special parameters of the resistance, resulting in the stability and reliability of the product can not be guaranteed. Correct understanding of the various parameters of the resistor and the considerations for selection, and a comprehensive understanding of the real role of the resistor in the circuit, can ensure the quality of the product from the most basic circuit design at the bottom.
