제품: 기타 수동 부품 전위차계, 트리머 및 가변 저항기

Potentiometers, rheostats, and trimmers are adjustable resistors used to measure or divide voltages in order to protect or control circuits. Potentiometers are variable resistors that feature an adjustable knob or dial used to change the location of the output contact. By varying the output contact, users can vary the resistance of the device, effectively controlling circuit potential levels. A specialized type, digital potentiometers, use a digital signal to set the output resistance. Potentiometers are often informally called pots. Rheostats are two-terminal variable resistors which function similarly to potentiometers. A three-terminal potentiometer can be used as a rheostat, with the third terminal left unconnected. Rheostats are typically used as strict variable resistors. Trimmers are potentiometers which need infrequent adjustment. They are often used to calibrate a device or circuit after manufacturing, and often require a special tool for adjustment. Potentiometers,Trimmers and Rheostats are available at Jotrin Electronics.