Series:	EVU-TW
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Resistance:	10 kOhms
Power (Watts):	0.01W
Tolerance:	±30%
Number of Turns:	1
Adjustment Type:	Top Adjustment
Size / Dimension:	--
Termination:	PC Pins
Mounting Type:	Through Hole

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Thumbwheel Potentiometers

Application Field

The EVU-TW7B45C14 thumbwheel potentiometer is primarily used for applications that require precise and rapid control over a wide range of linear or rotary motion. This type of potentiometer is most commonly used to control the speed of motors, as well as the level of sound in audio amplifiers or other audio equipment. This type of potentiometer can also be used in adjustable power supplies and high power electronic equipment.

Working Principle

The EVU-TW7B45C14 thumbwheel potentiometer works by varying the resistance of a circuit by controlling the position of a movable contact. The movement of the contact in this type of potentiometer is accomplished via a thumbwheel, which is normally located on the top of the component’s housing. When the user adjusts the thumbwheel, the contact will move across the potentiometer’s resistor, which is composed of several metal strips. The closer the contact is to one end of the resistor, the higher its resistance; conversely, the closer it is to the other end, the lower its resistance. The resistance of the circuit changes as the contact moves, thereby changing the current flow through it.Various types of thumbwheel potentiometers are available, depending on the application. The EVU-TW7B45C14 is a digital type, meaning that it is driven by a microprocessor. This type of potentiometer provides accurate and reliable control over a variety of parameters in both linear and rotary motion applications.The EVU-TW7B45C14 is constructed from durable materials for optimal performance and reliability. The potentiometer has a compact design that is resistant to dust, liquids, and vibration. It has a positive detent function that ensures that the knob is perfectly aligned on the top of the potentiometer. Additionally, this component has a wide temperature range of -40°C to +85°C, which can handle most applications with ease.

Conclusion

The EVU-TW7B45C14 thumbwheel potentiometer is a highly accurate and reliable component that can be used in a wide range of applications. It is insulated from dust, liquids, and vibration, and has a wide temperature range that can handle most applications with ease. Its digital construction ensures that it can provide precise and rapid control over a variety of parameters, making it an ideal choice for motor speed control and other applications that require precision.

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