Ceramic Resistors Advantages

The ceramic resistors offer the advantages of carbon composition resistors pure resistance stability reliability and pulse stability in power electronic applications though these too have poor tolerance levels typically 10.

Ceramic resistors advantages.

Since they fail open circuit a small low value resistor can be used instead of a more expensive fuse. These precision wire wound resistors are available up to 5 w with and 1 tolerances and are useful upto 5 to 10 mhz. The winding is so done so as to minimize inductive and capacitive effects at high frequencies beyond 200 khz. Precision wire wound resistors are wound on ceramic tubes and sometimes epoxy moulded tubes are used.

Disadvantage waste power by turning it to. Wirewound resistors have longer life compared to other types. Sometimes referred to as ceramic power resistors due to their resistance levels ceramic resistors have definite advantages over other resistors. The important characteristics of wirewound resistors is its precision.

This property of ceramic allows the cores of these resistors to endure low to moderate power electrical current throughput without overheating and becoming damaged. For instance the ceramic composition resistor has found wide use as a thermal sensing control element and as a current limiting device due to its relatively low electrical resistance in one temperature range and very sharply increased resistance when heated to an anomaly temperature. They can have very tight resistance tolerances say 0 005 is commonly achieved. Ceramic s use however is not limited to the internal components of resistors.

Advantages very cheap and easy to replace.