Basic Electrical Component Description

Basic Electrical Component Description

THERMISTOR (Sensor)
A thermistor is a device whose resistance depends on its temperature. The lower the temperature, the higher the resistance - the higher its temperature, the lower its resistance, i.e. In-car sensor, ambient sensor.

POTENTIOMETER
A potentiometer is a device whose resistance varies when one of its two elements is rotated either way, manually or mechanically, i.e. Temperature selector, feedback potentiometer.

RANCO THERMOSTAT
Is an electrical switch which passes current at all times except when its sensing probe, attached to the evaporator, drops to 2°C (36°F). When this occurs, the Ranco Thermostat becomes non-conductive and the circuit to the compressor clutch is disengaged closing down the refrigeration system to prevent evaporator freeze-up.

DIODE
Is an electrical device which will allow current flow in one direction only.