PDB182-K418F-105B

Rotary Potentiometers, Rheostats

The PDB182-K418F-105B is an example of a rotary potentiometer, also known as a rheostat. This device is an adjustable electrical resistor that allows for the smooth control of electrical current. It uses a variable resistor that is operated by rotating a knob or shaft, and is used in a variety of electronics and automotive applications.

Application Field

The PDB182-K418F-105B rotary potentiometer is used for a wide range of applications. It is commonly used in automotive applications, such as in radio circuits, ignition systems, and sound systems. It is also used in audio equipment, such as in volume and tonal controls, and in some medical equipment. Additionally, it is used in industrial automation and process control circuits, as well as in universal remote controls, to control the volume or other functions.

Working Principle

A rotary potentiometer consists of three physical parts: the knob, shaft, and body. The knob is attached to the shaft which is connected to the body. The body of the potentiometer typically contains two terminals and a resistive element, such as a thin film or thick film resistor. When the knob is rotated, the resistive element is compressed or expanded, changing the resistance of the circuit.

The resistance of the potentiometer is proportional to the angular position of the knob. That is, the resistance is higher (or lower) when the knob is in a certain position, making it possible to adjust the resistance of the circuit to a desired level. This level of resistance can be used as a feedback signal for a control loop in a motor or other device.

The PDB182-K418F-105B rotary potentiometer is designed for use in automotive applications. The device is waterproof and dustproof, ensuring reliable operation, even in harsh environments. It is also resistant to vibration, making it suitable for applications where the device is subject to frequent vibrations.

The PDB182-K418F-105B is a high-precision rotary potentiometer, with a linearity of up to 0.5% and a temperature coefficient of up to 50ppm/Deg C. It is available in various resistance ratings, from 1K Ohm to 1M Ohm. The potentiometer has a life expectancy of up to 100,000 cycles and is available in a variety of configurations, such as single-turn and multi-turn.