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What are the Characteristics of Cement Resistors?

Writer:Microhm Page View:Date:2018-11-26
There are many types of resistors, such as alloy resistors, film resistors, chip resistors, plug-in resistors, etc., but we are impressed by the cement resistance. Many people who don't understand the cement resistance will sigh. How can cement be used as a resistor to produce materials? ? In fact, cement resistance is an older resistor in the industry, and people in the non-electronic industry do not understand this product.

 Today we will look at the characteristics of cement resistors. 
1. Shock resistance, moisture resistance, heat resistance and heat dissipation, low price and so on.
2. Fully insulated, suitable for printed circuit boards.
3. Replace the winding with a high value resistor (MO) of the metal oxide film.
4. Excellent thermal resistance, small temperature coefficient of resistance, linear change.
5. Short-time overload, low noise, no resistance change.
6. Good explosion-proof performance. 
Generally, high-power cement resistors are usually used in high-power environments. In the case of large currents in the circuit, there are cement resistors of 2W, 3W, 5W, 10W or even more. This high-power cement resistor is usually used in air conditioners. TV sets, or appliances with more than 100 watts of power, high-power cement resistors are widely used in these products.


The above is the main features of cement resistors, but we can not ignore the shortcomings of cement resistors, such as large volume and high heat consumption. Because of these shortcomings, models that replace cement resistors have also been developed on the market, but cement resistors are still used in many industries.


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