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Saturday, July 17, 2010

Kinds of Resistors

Fixed Resistor
  • Carbon film resistor is one of the most common types of resistors used and has very good frequency response. Carbon Film Resistor material is a mixture of carbon with a long piece of ceramic rods. This resistor value itself is marked with color code.








  • Metal film resistor is made from a mixture of metal and ceramic. physical form of resistor is the same with carbon resistor, which determines the value of resistance equal to the carbon resistor. This resistor difference is the accuracy with carbon resistors and resistor has a temperature coefisient and lower noise, and do not have a voltage coefisient.








  • Fuse Resistor is a resistor that functions as a fuse. If the current through the resistor is very large, the resistance of this resistor will be turned into a very large, even infinite.




  • Power Wirewound Resistor, These resistors have a larger physical form other resisor, and is commonly used circuits that require very large power. At the time of operation, this resistor can generate substantial heat so it is often covered by other materials such as anodized aluminum, Fiberglass Mandels, ceramic tubes, ceramic rods, etc.








  • Precision resistors Wirewound, resistors are the most suitable for use in the DC circuit because it has a very high degree of accuracy up to 0005%, and TCR (Temperature coefficient of resistance) is very low. This resistor is used on the regulator is best suited and least suited to radio frequency (RF) because it has a resonance frequency Q is very low.



  • Standard resistor NIST (National Institute of Standards and Technology) is a type of resistor used on the instruments, and is standard in verification token accuracy of a measuring tool.These resistors have a TCR of low and very stable compared to the Precision Wirewound Resistors, and has the highest accuracy of up to 0001%.
  • SIP (singgle In Line) is  is a resistor arranged in parallel, and are made in one package. This resistor is usually called Resistor Pack or R-pack.

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