PDB241-GNL04-254B0

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Rotary Potentiometers, Rheostats

PDB241-GNL04-254B0 is a type of rotary potentiometer, rheostat product developed by the Alpha Technologies Group. Potentiometers and rheostats are both two-terminal electrical components which are used as variable resistors in electronic circuits. They are often used together and can replace each other for some applications, but they do have differences.

Application Field

PDB241-GNL04-254B0 is mainly used in fields such as consumer electronics, automotive, medical, and industrial. The application areas cover a wide range of occasions, including sound, lighting, and security systems. Potentiometers and rheostats can be used as volume and lighting controls, to regulate the amount of current in a circuit, and to adjust the output voltage in power supplies. They are also widely used in audio equalizers and tone control circuits.

Working Principle

The working principle of potentiometers and rheostats is basically the same, both of them have three signal connections, and their two ends can be connected to the positive and negative of the power supply, and the third pin is connected to receive an analog signal from a voltage source. When the analog signal varies, the voltage drop across the potentiometer and the resistance value it represents also change.

PDB241-GNL04-254B0 is equipped with a rotary knob to adjust the resistance of the device, which is driven by a worm gear to maintain a stable and smooth resistance value. The rotary potentiometer has a low temperature coefficient and high stability. The device provides better linearity and accuracy than other traditional fixed multi-turn potentiometers and rheostats.

Features

The PDB241-GNL04-254B0 rotary potentiometer, rheostat features extreme low-profile design, high performance and durability with component level environmental reliability. It has a compact body size suitable for use in high density circuit designs. Its extended temperature range is -40°C to +85°C. Other features include RoHS compliance, high insulation resistance, and low contact resistance.

The rotary potentiometer features a built-in mechanical end-stop, preventing the rotation beyond the pre-set limit. This feature can effectively protect the device against damage caused by an accidental over-rotation. The device also integrates an anti-reverse feature, preventing it from misoperation in case the rotary knob is accidentally reversed.

PDB241-GNL04-254B0 provides an accurate and reliable resistive solution in an environment-friendly and low-cost design. Its simple handling makes it an ideal choice for use in a wide variety of industrial and consumer applications.

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