PTM902-025K-203A2

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Rotary Potentiometers, Rheostats are essential passive components in a variety of electrical circuits and systems. PTM902-025K-203A2 is a type of them, widely used in various applications. This article introduces the application field and working principle of PTM902-025K-203A2.

PTM902-025K-203A2 is a rotary linear potentiometer which can offer a reliable and quality solution to various applications. It features a lever action actuator, washer type bushing for mounting, through-hole terminals, and a dustproof cover. It has a rated current of 1A, a rated power of 50mW, and a resistance range of 25KΩ±20%. Its resistance taper is linear and its joint angle is 300°.

Application Field

The PTM902-025K-203A2 is widely used in numerous applications, including

• Remote control systems
• Digital timing instruments
• Automatic control equipment
• Amplifiers
• Guitar amplifier
• Computer control devices
• Volume controllers
• Instruments
• Consumer audio devices
• Automotive instruments
• DC motor control

Working Principle

PTM902-025K-203A2 operates by adjusting the resistance between two terminals of the potentiometer. The basic working principle of a rotary linear potentiometer is based on the varying resistance of a conductive material (usually carbon or metal film) that is rotated like a screw on a cylindrical body. When the potentiometer is in its rest position, the resistance between its two terminals is at its maximum value. As the conductive material is rotated, the resistance between the two ends is decreased and adjusted. This principle is illustrated in the image below.

The operation of most linear potentiometers relies on a sliding contact that can be moved from one end of the resistive element to the other. As the sliding contact moves along the resistive element, it changes the total resistance between its two terminals. Thus PTM902-025K-203A2 linear potentiometer converts angular position into an electrical signal. The output voltage of the potentiometer is varied between 0V and the power voltage that is applied to the potentiometer.

PTM902-025K-203A2 rotary linear potentiometer is an essential component of various electrical circuits and systems. Its application field is broad and it is used in many devices and systems. Its working principle is based on the varying resistance of a conductive material that is rotated like a screw, and the output voltage of the potentiometer is varied between 0V and the power voltage applied to the potentiometer.

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