ST42ETA105

Trimmer Potentiometers are miniature adjustable resistors used for fine-tuning the output voltage in various applications. The ST42ETA105 is an example of this type of potentiometer, and is typically used in circuitry which requires high-precision adjustment of a voltage output or tuning of an oscillator. The ST42ETA105 is a 5-pin, single-turn trimmer potentiometer, featuring a small aperture size of 0.8mm diameter and can be used in a range of applications from microwave component tuning to motor speed control.

The ST42ETA105 is a single-turn trimmer with a total resistance of 47 Kohms. It consists of a conductive terminal, a slider element, three pins for connections and an adjusting screw for manual adjustments. The resistance is created between the two outer pins, and the middle pin serves as the wiper. When the wiper is moved around the resistance track, the resistance of the potentiometer either increases or decreases, providing fine adjustment of voltage.

The voltage range for the ST42ETA105 is up to 50 volts and with its low power dissipation it is suitable for use in applications such as microwave component testing and tuning, control of motors and audio equipment, and radio communications. The resistance range starts from 0.3 Ohms up to 47 Kohms making it an ideal choice for applications that require precise tuning of a voltage or oscillator.

The ST42ETA105 is also relatively low cost compared to other similar trimmer potentiometers, making it a popular choice for applications where accuracy and reliability are of primary concern. For applications which do not require very high precision, cheaper trimmers can be used instead, although the ST42ETA105 is preferred for applications where higher accuracy and reliability is desired.

The ST42ETA105 is easy to use and can be installed quickly and simply. It is designed to be used in compact spaces and does not require additional external power supplies. The trimmer also features a degree of environmental protection, making it suitable for use in more difficult locations such as near water or exposed to extreme temperatures.

Overall, the ST42ETA105 is a popular choice for applications where precision and reliability are required. Its small package size, low power dissipation and environmental protection make it suitable for use in a wide range of applications. By adjusting the wiper around the resistance track, the resistance of the potentiometer can be varied, providing precise tuning of a voltage or oscillator.