PTR901-2025F-A103

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Rotary potentiometers and rheostats are electrical components used to control the amount of electrical current in the circuit and, as a result, affect the amount of current supplied to downstream elements. The PTR901-2025F-A103 is a robust, high-precision, single-turn through-hole rotary potentiometer with an operating temperature range of -55°C to 85°C. The device is composed of a short-throw wiper and a protective cover with a polyamide body, providing a reliable and long-lasting experience.

The principle of operation of a rotary potentiometer is straightforward, the resistive element of the device participates in the electrical connections. It changes its position as the user turns the knob. As the knob turns, the wiper makes contact with a resistive element, generating a ratio between the resistance at the wiper and the total resistance, modulating the output accordingly. The output signal of the PTR901-2025F-A103 is linear, with its resistance range from 20Ω up to 100kΩ, and an optimal Power Rating of 0.03W and 0.25W.

The application of a rotary potentiometer is varied, specifically, it is used to control the speed of a motor, adjust the volume in audio amplifiers, regulate the gain in amplifiers, and regulate the output voltage in power supplies. The long life of the PTR901-2025F-A103 makes it ideal for industrial uses, controlling the output of motors, or accuracy measurements in medical and laboratory equipment. Its accuracy and stability provide a reliable output for a variety of devices.

Rheostats, while similar to potentiometers, originate from a different type of electricity, alternating, and are used to regulate currents from variable sources. A rheostat works by varying the resistance of the circuit, without varying its voltage, by changing the current flowing through the circuit. The PTR901-2025F-A103 is not designed to work as a rheostat, but as a potentiometer.

Rotary potentiometers, like the PTR901-2025F-A103, provide a variety of applications and have long lifespans. Their resistance ranges from 20Ω up to 100kΩ and behave in a linear fashion, making them ideal for industrial, medical, and laboratory applications. They are designed to control the output of motors, monitor accuracy, regulate voltages, and adjust the volume of audio. Rheostats are similar but designed for alternating current sources and should not be confused with potentiometers.

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