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Rotary Potentiometers, Rheostats

PTV09A-3020F-B104 application field and working principle

A potentiometer, also known as the rheostat, is a variable resistor used for the measurement of electric potential. It is a type of passive electronic component with an adjustable resistance. Potentiometers are commonly used as volume controls on audio systems, as speed controllers for motors, and in many other applicationsPTV09A-3020F-B104 is a type of rotary potentiometer, produced by PASSION Technology Co., Ltd. There are several application fields for PTV09A-3020F-B104, including, but not limited to, PA-systems, automotive electronics, industrial circuits, telecommunications, consumer electronics, etc. It is mainly used as a part of the potentiometer circuit, providing adjustable current to control the multiplication of the input signal. The working principle of PTV09A-3020F-B104 is quite simple. A wiper is attached to the shaft, the shaft is moved by the turning of the knob, and the wiper is connected to a resistive strip. As the knob is rotated, the wiper moves along the resistive strip, resulting in a change in the resistance of the circuit. This in turn, changes the input current to the output, providing different levels of amplification or attenuation. PTV09A-3020F-B104 consists of four terminals: two terminal pins are connected to the resistive strip, and the other two are connected to the wiper. The two terminals connected to the resistive strip are referred to as ends, and the ones connected to the wiper are referred to as wipers. The wiper is usually connected to the center of the resistive strip, between the two ends. The resistance of the PTV09A-3020F-B104 can be adjusted from the min to the max by rotating the knob. Depending on the application, the range of adjustment can be increased or decreased. The maximum output current of the device is up to 0.3A and its power dissipation is up to 3W. In summary, PTV09A-3020F-B104 is a rotary potentiometer, used to adjust the current of a circuit, and finds applications in a variety of systems such as PA systems, automotive electronics, industrial circuits, telecommunications, and consumer electronics.

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