PTD901-2215F-B103

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Introduction

Rotary Potentiometers and Rheostats are electrical elements providing variable resistance, both through mechanical rotation and uses a system of three electrical terminals and a contact sliding element called a wiper. The circuit design process is simplified when selecting the proper types of these devices depending on the operating environment and application requirements. Some common applications include control, monitoring, signal acquisition and feedback.

PTD901-2215F-B103

The PTD901-2215F-B103 is a rotary potentiometer or rheostat, offering a combination of features and performance that makes it suitable for many demanding applications. It is designed for use in a variety of environments, both indoors and outdoors, and is engineered for reliable operation for 5,000 cycles or more of mechanical rotation.

This device features a carbon element, for excellent linearity, conductive plastic for reliable performance over extended periods, and a narrow temperature coefficient. It also includes a return spring and detent which support reliable performance over temperature (<-40°C to +125°C).

The combination of these features enables the PTD901-2215F-B103 to be used in applications such as motor control, lighting control, audio/visual systems, and more.

Application Field and Working Principle

Rotary Potentiometers and Rheostats serve as variable resistors in electrical systems. They consist of three electrical terminals and a rotary contact with a “wiper” arm. As the wiper is rotated, the resistance between the “hot” (or input) terminal and the “common” terminal is varied, while the resistance between the Common and the “cold” (or output) is kept constant. This same principle applies to rheostats as well, but the resistance between the terminals is not linear.

The PTD901-2215F-B103 is suitable for applications that require a reliable control, monitoring, signal acquisition or feedback at a range of electrical settings. These include motor control, lighting control, audio-visual systems, communication systems, et cetera. It can also be used in circuits where adjustable resistance is needed, such as for controlling the gain settings of amplifiers, controlling the frequency of oscillators, and for designing automatic gain control systems.

The device is designed to operate reliably over extended periods and can be attached directly to a printed circuit board. The detent feature of the PTD901-2215F-B103 allows for the mechanical rotation to be accurately positioned, and the return spring allows for repeatable, homogenous performance over temperature.

In addition, the device has a narrow temperature coefficient, making it suitable for use in environments where precise positioning and resistance values are needed in a wide range of temperatures. The device is also waterproof and designed to withstand temperatures ranging from -40°C to +125°C, making it suitable for a variety of indoor and outdoor applications.

Conclusion

The PTD901-2215F-B103 is a rotary potentiometer or rheostat designed for reliable operation over extended periods. It is suitable for a variety of control, monitoring, signal acquisition, and feedback applications, as well as for applications requiring adjustable resistance. Its features, including conductive plastic for reliable performance over extended periods, a return spring and detent for accurate positioning, and a waterproof and temperature resistant design, make it an ideal choice for many demanding applications.

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