78PR25K

Trimmer Potentiometers

A trimmer potentiometer, also known as a trimpot, is a miniaturized variable resistor composed of a wiper and a resistive element. Trimpots, also known as trimming resistors or variable resistors, use a shaft to adjust the electrical resistance. They are often used to fine-tune the settings of electrical circuits. Trimpots come in a wide range of mechanical designs — from top-adjust and side-adjust styles to miniature and surface mount configurations.

The 78PR25K trimmer potentiometer is a high-precision, two-terminal, through-hole-mount, multi-turn trimmer potentiometer. It offers precise resistance adjustment over a wide range of resistances. This trimmer has a 25kΩ resistance range and can be adjusted with 3.2 turns of a knob. It is designed to be used in applications where precision and stability are important.

Application Field

The 78PR25K trimmer potentiometer is used in a wide variety of applications ranging from audio and video equipment to medical equipment, robotics, drones, and industrial equipment. It is especially suited for applications that require precise resistance adjustment. Some of the most common applications include:

• Automatic gain control systems.
• Adjustment of intensity in LED lighting systems.
• Regulating motor speed in robotics.
• Adjusting power levels in consumer electronics.
• Precision control of automation systems such as for industrial equipment.

Working Principle

The most common type of trimmer potentiometer is the rotary style. This type of trimmer works by adjusting the resistance of the current passing through it as the knob is rotated. As the knob is turned, a wiper slides along the resistive element while changing its position relative to its connections. Changing the position of the wiper changes the ratio of the resistive element that is in contact with the positive and negative terminals. This changes the resistance of the current passing through it.

The 78PR25K trimmer potentiometer is an adjustable trimmer that has been designed for precision applications. It offers superior resistance accuracy and stability, making it an ideal choice for applications that require precise adjustment. Its 3.2-turn knob is designed to easily adjust the resistance with a just few turns of the knob.

The 78PR25K trimmer potentiometer is a reliable and precision device that is well-suited for a variety of applications. It is available in a wide range of mechanical designs, offering users greater flexibility in their designs. Its versatility and precision make it an ideal choice for precise resistance adjustment applications.