The passive two-terminal electrical component is explained on Facts about Resistors. It is functioned as a circuit element used for electrical resistance. It has various functions for electronic circuits. The resistors can divide voltages, decrease the current flow, terminate transmission lines, bias active elements and modify signal levels. The people who deal with electronic circuits and electrical networks must be familiar with resistors for they are a common element.
Facts about Resistors 1: the fixed resistors
The change of resistance is determined by the operating voltage, time and temperature in fixed resistors.
Facts about Resistors 2: the high power resistors
The test loads for generators, power distribution system and motor controls usually feature the high power resistors because the many watts of the electrical power can be dissipated into heat.
Facts about Resistors 3: the variable resistors
If you are interested to use resistors for sensing devices and circuit elements, pick variable resistors. They are often used for chemical activity, force, humidity, light, heat, lamp dimmer and volume control.
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Facts about Resistors 4: the electrical function
The resistance of resistors will determine or specify its electrical function. The technology used for producing the resistor will determine the level of excess noise, unwanted inductance and temperature coefficient.
Facts about Resistors 5: the high power ratings
If you deal with resistors equipped with higher power ratings, you need to think about the heat sinks. The resistors must be larger.
Facts about Resistors 6: CCR
CCR stands for carbon composition resistors. The plastic or paint is used to protect the resistor body. The mixture of powdered carbon and ceramic are used to produce the resistive element.
Facts about Resistors 7: the usage of CCR
CCR is often used in welding controls and power supplies. Most applications do not use CCR due to the expensive price.
Facts about Resistors 8: carbon pile resistors
The carbon pile resistors have wider applications than CCR. The radio transmitter and automotive batteries often feature this resistor. The household appliances such as hand-held mixers and sewing machine, which require speed control for small motors, also feature the resistor.
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Facts about Resistors 9: the thick film resistors
In 1970s, the thick film resistors gained their popularity. It can be found in the present day surface mount device resistors. Compared to the thin film, it is 1000 times thicker.
Facts about Resistors 10: the production of metal film resistor
The nickel chromium is used for coating the metal film resistors.
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