P091P-QA25BR100K

Rotary Potentiometers, Rheostats

The P091P-QA25BR100K is a rotary potentiometer and rheostat in one package. Rotary potentiometers are types of voltage divider circuits which contain three terminals – one for the input voltage, one for the output voltage, and one for the adjustable thumbwheel or spindle which adjusts the output voltage. It is often called a potentiometer, rotary pot for short. Rheostats are variable resistors with two terminals that are used to control the current in a circuit without interrupting the circuit flow.

The P091P-QA25BR100K is a multiturn potentiometer with a 25mm diameter body. It has a 16mm deep body profile and is available in either screwdriver or thumbwheel adjustment options. The potentiometer elements consist of two cermet tracks; one from each end of the body to the wiper, and one between the two terminals. The resistance value is adjustable by turning the spindle or thumbwheel.

The P091P-QA25BR100K has a wide range of operating temperatures from -40°C to +125°C. It also has an IP6 rating for moisture protection and protection from small particles. Its long lifespan of up to 30 million cycles makes it an ideal choice for industrial applications. It is also available in various resistance values from 1kΩ to 100kΩ.

Application

P091P-QA25BR100K is a suitable choice for a variety of applications. It is commonly used in industrial projects or process automation for controlling motor speed, flow rate, temperature, voltage, or other parameters. It can also be used for setting the output voltage of power supplies, measuring or adjusting current in circuits, or for data acquisition and test instrumentation. The P091P-QA25BR100K is also widely used in the production of consumer electronics, medical equipment, and other devices.

Working Principle

The working principle of the P091P-QA25BR100K is simple. When the spindle or thumbwheel is turned, it changes the resistance between the two tracks, which in turn affects the output voltage. The resistance value of the potentiometer can be calibrated by measuring the resistance between the two tracks at different points of rotation. The range of resistance between the two tracks is adjustable by turning the spindle or thumbwheel.

When the spindle or thumbwheel is rotated, the position of the wiper and the contact area of the tracks in relation to each other change. This changes the resistance of the track and causes the output voltage to vary. This is the main working principle of a rotary potentiometer.

Conclusion

The P091P-QA25BR100K is a multifunctional rotary potentiometer and rheostat designed for use in industrial applications. It is available in different resistance values from 1kΩ to 100kΩ and can operate in extreme temperatures from -40°C to +125°C. Its long lifecycle of up to 30 million cycles and its high IP6 rating make it an ideal choice for demanding applications. The working principle of a rotary potentiometer is simple; the spindle or thumbwheel is used to adjust the resistance value of the track and thus adjust the output voltage.