3260H-1-100

TRIMMER POTENTIOMETERS

A trimmer potentiometer is an adjustable resistor with three terminals. It is also known as a trimming potentiometer, single-turn potentiometer, or variable resistor. Trimmer potentiometers are often used to fine-tune the performance of an electronic circuit. They are used in a wide range of applications and are available in various styles and terminal configurations. The most commonly used type is the 3260H-1-100 series trimmer potentiometer.

APPLICATION FIELD

Trimmer potentiometers are used in a variety of applications, including:

• Adjustment of bias and gain of amplifier circuits
• Testing and tuning of oscillators
• Setting of reference voltage levels
• Adjustment of feedback loop in feedback-controlled circuits
• Adjustment of quiescent current of Darlington circuit
• Calibration of monitoring systems
• Setpoints adjustment of process controllers
• Tuning of resonant circuits
• Pulse shaping and timing
• Tone generation

The 3260H-1-100 series trimmer potentiometer is specifically designed for use in antenna tuning applications. This device is a single-turn miniature trimmer potentiometer with a wide range of resistance levels. It has a solid-state design and is available in three different package sizes.

WORKING PRINCIPLE

Trimmer potentiometers typically consists of a resistive track formed into a, usually circular, plastic body. Two connections are made to the resistive track, and the middle is adjustable via a small knob. When the knob is rotated, the middle connection moves across the resistive track, thus changing the resistance in the circuit.

The 3260H-1-100 series trimmer potentiometer is a single-turn potentiometer with a rotary movement. It consists of a fine-threaded, stainless steel shaft with a plastic knob threaded onto it. As the shaft is rotated, a conductive element moves along a resistive track and the resistance changes. This series has a continuous rotary motion and can be adjusted continuously, allowing for precise tuning.

When connected in a circuit, trimmer potentiometers can be used to adjust the voltage level, the amount of current in the circuit, and the frequency of an oscillator. The 3260H-1-100 series trimmer is ideal for antenna tuning applications, as it provides a wide range of adjustment of the circuit\'s resistance value.