The KKA5021S28 is a type of rotary potentiometer and a rheostat, which is widely used in all kinds of control applications. The KKA5021S28 is a four-terminal device that includes a thick film resistor element that is designed to achieve a general purpose position sensing, voltage division, and increased output control capability.

Application Field

The KKA5021S28 is primarily used in industries where precise position sensing and voltage division control are essential in a process path. It is used for feedback purposes on motor controllers, sensing nozzles on electronic equipment, and in applications that involve automation. It can also be used in a variety of other industrial settings such as process control systems, robotics, and transportation. Additionally, the KKA5021S28 can be used for audio and video equipment, consumer electronics, appliance control, and lighting control.

Working Principle

The KKA5021S28 has a resistor element, which is composed of a thick film substrate. It is contact-less and provides a long life expectancy. The sliding contact of the KKA5021S28 is non-magnetic, thanks to its non-magnetic metal or plastic sliding contact block. When the slider is moved, it moves the contact of the resistor. This changes the resistance value of the resistor. Consequently, the voltage output of the KKA5021S28 changes depending on the position of the sliding contact on the resistor.

In addition, the KKA5021S28 also has low contact-resistance, low ruggedness, and high accuracy. Its insulated construction also prevents electrical shorts, which provides an extended service life. The KKA5021S28 is highly reliable due to its robust construction and gold-plated terminals which prevent corrosion of its electrical connections.