KKB5021S28

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Rotary Potentiometers, Rheostats, and KKB5021S28 Application Field and Working Principle

Rotary Potentiometers are a type of variable resistor. They work by using a slotted wiper on the end of the device which moves along a resistive surface. When the wiper is touched respectively to different points along this surface, electric current flows differently and a variable resistance is produced. The wiper can rotate to cover the whole surface which allows continuous variable resistance over a wide range of values.

Rheostats use the same principle of variable resistance, however they use a single limiting element to achieve the same effect as a potentiometer but are designed to provide higher amounts of power. Rheostats operate by having one element with two contacts and a resistive track between them. As the user slides the wiper contact along the resistive track, the resistance is varied.

The KKB5021S28 is a rotary potentionmeter made by China ShuangHuan Electronics Co., Ltd. It is a resistive device with several applications within the field of electronics. It is a single-turn, 20K Ohms rotary potentionmeter which can be used for resistance measurements and for adjusting the amount of current flowing through a circuit. The KKB5021S28 is designed to operate at temperatures between -55°C and 85°C. Its rated voltage is 0.5W and its rated power is 0.1W.

The working principle of the KKB5021S28 can be understood as follows: An electrical signal consisting of a variable voltage or current is applied to the input contacts of the potentionmeter. The output of the potentionmeter is determined by the angle of the rotating shaft which acts as a wiper. When the wiper is rotated, it sweeps across a resistive track of the device. The signal on the output changes depending on the angular position of the wiper along the resistive track.

The KKB5021S28 is a practical and reliable solution for various applications in the fields of control and instrumentation. It can be used as a control point for adjusting electrical signals in precision devices, such as electronic test and measuring instruments, audio equipment, digital cameras and video recorders, as well as a variety of industrial and consumer products. It can also be used for automation purposes, for example, for controlling the flow rate of liquids and gases, the speed of motors, or for positioning linear actuators.

In conclusion, rotary potentionmeters and rheostats are both variable resistors which can be used to adjust the level of current or voltage in a circuit. The KKB5021S28 is a specific rotary potentionmeter designed for use in various settings and it operates by having a variable resistance generated by the rotation of a shaft which moves a wiper contact along a resistive track, thus modifying the output of the device.

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