PTD901-2020K-B102

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Rotary Potentiometers

PTD901-2020K-B102 is a kind of rotary potentiometer with a conductive plastic element, which is primarily used for broad range of applications, such as position sensing, adjust volume, control a motor speed, adjust gain, and so on.It works in a similar way as a linear potentiometer, that is, it uses variable resistance to provide a signal that is proportional to the angular position. The PTD901-2020K-B102 is composed of a resistive element, a wiper, and two terminals. The terminal is connected to the outside voltage, and the wiper is connected to the stationary terminal, forming a voltage divider.As the wiper moves along the electrical contact board inside the rotary potentiometer, which is controlled by the rotating knob on the outer shell, the resistance between the two terminals changes. The voltage between the two terminals is changed accordingly. When the knob is rotated in the clockwise direction, the resistance increases and the voltage between the two terminals decreases accordingly. Similarly, if the knob is rotated in the reverse direction, the resistance decreasing and the voltage increases.

Rheostats

Rheostats are variable resistors that regulate the current flow. They can be used in analog circuits such as amplifiers or electric motors to adjust the voltage or current.The PTD901-2020K-B102 rheostat is a three-terminal variable resistance device. The two stationary terminals are connected to a resistive element, and the movable terminal is coupled to a wiper moving along the resistive element. By rotating the knob on the outer casing, the wiper moves along the resistive element and changes the resistance between the two stationary terminals. Thus, reducing or increasing the current flow through the circuit.The PTD901-2020K-B102 rheostat also has a versatile control range of up to 360°. This provides precise control to the user, allowing them to adjust the current in the circuit with great accuracy.In addition, these rheostats also come with a dynamic contact area and a dielectric moisture barrier, which helps protect it from high temperatures, dirt, and moisture.Apart from voltage and current control, these PTD901-2020K-B102 also find application in temperature measurement, speed and position sensing, power conditioning, motor control, etc.

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