73JB20K

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Rotary Potentiometers, Rheostats

A rotary potentiometer is a type of resistor that is used to adjust the resistance in a circuit. It consists of a rotatable contact surface which is connected to a moving wiper, and is used to vary the resistance in a circuit. The rotary potentiometer is used to control the output signal from an amplifier or the gain of a control system. It is also used to measure voltage and current in various applications. The most common type of rotary potentiometer is the potentiometer. This type of potentiometer has three terminals: two fixed contacts and a third variable contact that can be connected to different resistors.

A rheostat is another type of resistor used to control and adjust the current in a circuit. It consists of two elements, an electrical resistor and a variable contact. Rheostats are used to adjust the voltage and current in a circuit. It is also commonly used in audio systems to control the volume. When the rheostat is adjusted, the voltage across the two terminals is increased or decreased, thus adjusting the current in the circuit.

73JB20K application field and working principle

The 73JB20K series is a type of rotary potentiometer, manufactured by ETA. It is a single-turn precision potentiometer with a 0.5-ohm resistance rating. It has a built-in adjustment screw for improved accuracy, and is available in a 20mm diameter package. This potentiometer is designed for use in various control applications such as temperature control, lighting control, and audio volume control.

The 73JB20K series provides a linear resistance variation from 0-2 ohms. This feature allows it to be used in a wide range of applications. It has an adjustable interwinding resistance of up to 10 ohms. This allows it to be used in both AC and DC circuits. The 73JB20K is designed for use in temperature sensing, audio level control, and lighting control applications.

The 73JB20K has a low torque rating and a high wear resistance, making it an excellent choice for long-term usage. The contact wiper tracking accuracy is excellent, and the potentiometer is resistant to vibration and shock. It is also UL listed for safety.

The working principle of the 73JB20K series is simple. The contact surface is connected to a wiper, which slides across the resistive surface when the knob is turned. The resistance of the circuit is then changed according to the position of the wiper. This allows the output of the circuit to be changed or adjusted by simply turning the knobs.

The 73JB20K series has many advantages over other rotary potentiometers. It is highly durable and reliable, with a long lifetime. It has a high-performance rating and excellent tracking accuracy. It is also easy to install and use, making it ideal for many applications.

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