PTV09A-4020F-C103

Rotary Potentiometers, Rheostats

The PTV09A-4020F-C103 product is a rotary potentiometer and rheostat designed for use in a variety of applications. The main difference between the two components is that the rotary potentiometer provides resistance over a range of values, while the rheostat is adjusted to provide a single level of resistance. Both components are used to vary the flow of current in an electrical circuit, and are generally used for regulation, calibration and control of a circuit.

Application Field

The PTV09A-4020F-C103 is commonly used in applications where variable resistances are needed for regulation and control. These can range from simple, single knob devices that are used to set the brightness of a LED light or adjust the volume of the stereo, to high precision electronic circuits where extremely accurate resistances are needed for calibration purposes or temperature control. Other applications may include miniature motor speed and direction control, induction heater power regulation, and fluid flow control systems.

Working Principle

The PTV09A-4020F-C103 works by converting the mechanical motion of rotating the knob into electrical resistance. Inside each device is a contact that is moved through or along a resistive element made of carbon or cermet. Or, in the case of a rheostat, the contact may move along a single track. As the contact moves, the material it moves through or along increases the resistance of the device, resulting in a change in the amount of electrical current that passes through the device. Depending on how the device is connected in the circuit, it can be used to provide a variable resistance or a fixed resistance.

Conclusion

The PTV09A-4020F-C103 rotary potentiometer and rheostat is a versatile component that can be used in a wide variety of applications. It is capable of providing both variable resistances and fixed resistances, making it a great choice for regulation, calibration and control purposes. The device is relatively easy to use and can be found in many electronic circuits.