PTD901-2015K-B503

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Rotary potentiometers, rheostats, and PTD901-2015K-B503 are three electrical devices that have similar purposes, but different applications and working principles.

A rotary potentiometer, often referred to as a rotary pot, is a three-terminal variable resistor. It has a circular dial with an inner and outer track of contacts, and a moving contact wiper that moves on the tracks. When the wiper is moved across the track, the resistance between the two sides and the wiper changes. This is called the potentiometric principle. They can be used to control the brightness of a lightbulb, the speed of a motor, or the volume of an amplifier. In addition, rotary potentiometers can also be used as a precision variable voltage divider.

Rheostats are variable resistors with just two terminals. They work similarly to rotary potentiometers, except that the wiper moves over a single track that it shares with one of the terminals. This means that the resistance between the two terminals changes as the wiper moves along the track, instead of between two sides and the wiper itself. Rheostats are used to control the current flow in an electrical circuit, as well as the voltage applied to a device.

PTD901-2015K-B503 is a rotary potentiometer manufactured by TE Connectivity. It is a panel-mount type made of nylon 6.6 and has an 8 mm diameter shaft for easy attachment. It has three terminals, with a maximum operating voltage of 250 volts AC/DC. It features a 1MOhm resistance, 15.1 mm panel cut-out, and is rated for a minimum 100,000 cycles of rotation. The PTD901-2015K-B503 is designed to be used in automotive and industrial control applications, such as adjusting the speed of fan motors or the brightness of a light.

In conclusion, rotary potentiometers, rheostats, and PTD901-2015K-B503 are all variable resistor devices. Each type of device has different properties and applications, but they all have the same purpose of controlling the resistance in an electrical circuit. The PTD901-2015K-B503, for example, is specifically designed for use in automotive and industrial control applications.

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