Rotary Potentiometers, Rheostats

The 3549H-1AC-103B is a rotary type of electrical component, typically in the form of a mechanical shaft and slider, that is used to control electrical signals such as voltage, current and electrical resistance. It is a type of potentiometer, meaning it has two leads or terminals and one central terminal connected to the slider. The two end terminals are connected to an adjustable resistance element that is physically moved by a shaft connected to the slider. The resistance is changed by rotating the shaft, thereby changing the resistance of the element along the length of the potentiometer.

The 3549H-1AC-103B has a resistance of 2K Ohms, and it is designed to act as both a potentiometer and a rheostat. As a potentiometer, it is used to control voltage, current or resistance in a circuit by adjusting the resistance value with the shaft. This is typically used in applications such as audio control, instrument control, and filter adjustments. As a rheostat, the 3549H-1AC-103B is used to control the flow of current in a circuit by adjusting the resistance value. This is often used in applications such as motor speed control, light dimmers, heating elements, and load reduction. The 3549H-1AC-103B can also be used as a switching mechanism by supplying it with a fixed voltage, while the slider is moved to a fixed location.

The 3549H-1AC-103B is a rotary type electronic component, and its working principle is based on the sliding contact principle. The resistance element is perpendicular to the shaft, and when the shaft is turned, the slider moves along the resistance element, thereby adjusting the impedance, which in turn changes the signal in the circuit. The resistance element is constructed with two electrodes, and when the slider moves over the resistance element, it bridges the gap between the two electrodes, thereby varying the resistance in the circuit.