PTR902-2015F-A203

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Rotary Potentiometers and Rheostats are among the simplest and most popular of electronic variable devices. The PTR902-2015F-A203 is one such device, and it is widely used in various electronic applications. This article aims to explain the application field and working principle of this device.

The PTR902-2015F-A203 in question is a single-turn Cermet Rotary Potentiometer with an integrated switch. The device features fast tracking speed and a high protection rating of IP67. This makes it ideal for a range of applications including rotary controls, cooling unit switching, signal attenuations, and adjustable speed control.

The device features a full-circle rotation of 300 degrees, along with a precision wiper element which contacts its track. This helps to provide a reliable and repeatable electrical signal, even with a full range of motion. The ceramic disc reflects accurate resistance across the full range of motion, and the device is designed to withstand vibrations and high thermal stability.

The PTR902-2015F-A203 consists of a resistive element with three terminals and a shaft which is used to select the desired position. The three terminals are the wiper, the end stop, and the common terminal. The wiper is used to measure the amount of resistance between itself and the common terminal and the end stop serves as the reference point when positioning the shaft. When the shaft is rotated, the wiper is moved along the resistive track. The resistance between the track and the wiper is measured, and the resulting resistance is used to control the electrical current sent through the device.

The PTR902-2015F-A203 is also able to serve as a variable resistors or a rheostat. This is done by varying the resistance between the wiper and the common terminal. The amount of resistance can be varied by turning the shaft to the desired resistance then adjusting the device’s rotary control knob. The resultant current will then vary depending on the amount of resistance set.

In conclusion, the PTR902-2015F-A203 is a single-turn Cermet Rotary Potentiometer ideal for a variety of applications. It features a full-circle rotation of 300 degrees and a precision wiper element which contacts its track. The three terminals are the wiper, the end stop, and the common terminal. The device can also act as a variable resistor or a rheostat by varying the resistance between the wiper and the common terminal. The high protection rating of IP67 makes it ideal for use in a range of applications.

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