The key components of potentiometer are resistance body and brush. According to the structural form between both and whether to contain switch, potentiometer can be divided into a few kinds of types. Potentiometer still can press the material classification of resistance body, if line is wound, synthetic carbon film, metallic glass glaze, organic solid core and conductive plastic wait for type, electric property basically decides at the material that uses. In addition, there are metal foil, metal film and metal oxide film made of resistor potentiometers, with special purposes. Potentiometer according to the characteristics of use, there are general, high precision, high resolution, high resistance, high temperature, high frequency, high power potentiometer; According to the resistance value regulation method, there are adjustable, half adjustable and fine tuning, after the two also called half fixed potentiometer. To overcome the brush on resistance body mobile contact to potentiometer performance and life to bring adverse impact, there is no contact non-contact type potentiometer, such as photosensitive and magnetic sensitive potentiometer, for a few special application.
WTH118 330K Rotary Linear Taper
WTH118 220K 4 PIN
WTH118 150K Ohm
WTH118 100K 1A
WTH118 68K Variable Resistor
One end of the sliding end is connected with the welding sheet B, and the other end is in close contact with the resistance body. The resistance value between A-B and B-C changes when the sliding end is changed. This is a kind of three-legged potentiometer, its two sides of the foot is its full resistance, the middle foot is sliding node, power supply from both sides of a foot access, from the middle foot lead, you can get as the middle foot rotation and change the voltage or other changes. Look at the potentiometer, A, B, C three solder corresponding to 1, 2, 3 terminals, potentiometer will have A resistance, the resistance indicated above is the total resistance of potentiometer, potentiometer is B500K, indicating that the total resistance is 500K, After connecting the wire according to the wiring diagram, you only need to rotate the sliding end to get different resistance values (resistance values vary from 0 to 500K). Two, the main parameters of potentiometer The parameter of potentiometer has a lot of, coefficient of resistance of value of rotating Angle, nominal, temperature, rated power, error range, slip noise, wear resistance, zero resistance.
potentiometer
B500K 3-PIN 504
B1K 6-PIN 102
B5K 6-PIN 502
B10K 6-PIN 103
B20K 6-PIN 203
B50K 6-PIN 503 Ohm
