PTP902-130K-504B2

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Rotary Potentiometers and Rheostats are highly useful devices found in a wide variety of applications. One of the most common types of such devices is the PTP902-130K-504B2. This device is a multi-turn, resistor-based electronic component that provides an adjustable resistance, either between its two terminals or between its third terminal and one of its two other terminals. This article discusses the application field and working principle of the PTP902-130K-504B2.

Application Field

The PTP902-130K-504B2 is most commonly used in electronic circuits, such as radios, amplifiers, digital audio systems, and other similar devices. It is also used to measure input voltage in an electronic system, and as a variable element in motor control circuits. Because of its adjustable resistance, it can be used to adjust sound volume, select a frequency, and control speed and current in a motor. Additionally, it can be used to adjust the gain level in audio circuitry, balance different signals, or adjust speaker crossover points.

Working Principle

The PTP902-130K-504B2 is a type of multi-turn potentiometer or rheostat. It has a rotary element that can be turned to adjust the resistor\'s resistance. The rotary element consists of a circle of resistive material such as metal, that is wrapped around a rotary shaft. When the rotary element is turned, the resistance changes as the length of resistive material in the element traverses from the first to second terminal. This changes the current going through the circuit, and the resistance can be changed from its minimum to maximum level by turning the rotary element.

The PTP902-130K-504B2 is also capable of providing linear or logarithmic resistance across its terminals, meaning that the resistance increases or decreases at a uniform rate as the rotary element is turned. This makes the device useful for audio and radio work, as its resistance can be adjusted smoothly and easily. Additionally, some potentiometers are designed with a third terminal - called a wiper - that allows a contactor to be attached so that it can access every point in the rotary element\'s circle.

Conclusion

The PTP902-130K-504B2 is a highly useful device belonging to the category of Rotary Potentiometers and Rheostats. It is highly versatile and can be used in various electronic circuits, such as radios, amplifiers, digital audio systems, and motor control circuits. It features an adjustable resistance that can be changed by turning its rotary element, and it can provide both linear and logarithmic resistance. Overall, the PTP902-130K-504B2 is a powerful tool that can effectively increase the performance of many electronic systems.

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