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What is cement resistor?


A cement resistor is a type of fixed resistor that is made by coating a ceramic core with a layer of cement. The cement is used to protect the resistor's components from damage and to help dissipate heat generated by the resistor. Cement resistors are commonly used in electronic circuits and are known for their high power handling capacity and durability.

Cement resistors are typically made by winding a resistive wire, such as nichrome or kanthal, around a ceramic core. The core is then coated with a layer of cement, which hardens to form a protective layer. The cement layer also helps to dissipate heat generated by the resistor, which can improve the resistor's performance and extend its lifespan.

Cement resistors are often used in high-power applications, such as power supplies, motor control circuits, and audio amplifiers, where they can handle large amounts of current without overheating or breaking down. They are also commonly used in harsh environments, such as industrial or automotive applications, where they can withstand extreme temperatures, vibration, and moisture.

Overall, cement resistors are a durable and reliable type of resistor that is commonly used in electronic circuits where high power handling and ruggedness are required.


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