91AR500LF

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Thumbwheel Potentiometers are widely used in electrical and electronic engineering. The 91AR500LF is one of them that is designed to provide a reliable and durable electrical connection to your equipment. The 91AR500LF is a 250-ohm linear taper potentiometer featuring a notchless, snap-action, 9 mm x 1 mm wheel. With its lightweight construction and easy-to-read markings, it makes adjusting the equipment connected to it a breeze.

The 91AR500LF application field consists of volume, tuning and other knobs such as speed control and brightness adjustment. Due to its robust construction, this potentiometer is also suitable for outdoor use. The 91AR500LF has a unique design that maximizes stability and allows it to withstand shocks and vibrations in the toughest environments. The resistance can be adjusted accurately with the miniature thumb wheel and its switch, creating a perfect equipment control solution.

The working principle of the 91AR500LF is derived from the traditional potentiometers. Like other potentiometers, the 91AR500LF consist of three main parts namely the rotation, wiper and resistance element. The rotation part is in the form of a thumbwheel with markings for setting the desired resistance value. The wiper is connected to the thumbwheel and consists of two contacts that connect with the resistance element. As the wheel is turned, the wiper slides along the resistance element which in turn increases or decreases the resistance value. This change in the resistance value is then applied to the equipment being operated.

The 91AR500LF is highly resistant to dust, humidity, and chemicals due to its PTFE insulation covering. The resistance is adjustable within a range of 0-500 ohms and delivers a smooth linear response across the full range when used in combination with a linear taper potentiometer. The unit is also suitable for use in a variety of severe conditions such as extreme temperatures, high humidity or high-pressure environments. It doesn\'t require any additional lubrication as it is already sealed with special PTFE grease.

The 91AR500LF is an ideal potentiometer to use for controlling a variety of equipment from speed control to brightness adjustment. The rugged construction of the unit makes it an ideal choice for use in extreme or harsh environments while the linear response ensures accurate operation. It is also resistant to dust, humidity, and chemicals, making it a reliable and durable choice for use in demanding conditions.

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