100K Ohm Preset Variable Resistor (Trimmer Potentiometer)

The 100K Ohm preset variable resistor , often referred to as a trimmer potentiometer, is a highly adjustable component designed to fine-tune resistance in circuits. Unlike fixed resistors, it allows for precise adjustments to achieve the desired resistance, typically during calibration or fine-tuning of electronic circuits. This type of potentiometer is commonly used in applications that require tweaking the settings after installation.

Key Features

• Resistance Range: Adjustable from 0 to 100K Ohms
• Power Rating: Typically 1/4 Watt
• Compact Size: Easily fits into PCB designs with minimal space usage
• High Precision: Allows for fine-tuning with excellent accuracy
• Adjustment: Typically adjusted using a small screwdriver or tool

Applications

• Calibration Circuits: Commonly used in circuits that require precise resistance values for calibration purposes, such as sensors or measuring instruments.
• Voltage Regulation: Trimmers are often employed in voltage divider circuits to adjust output voltages for stability or specific application requirements.
• Oscillators and Timers: Used to set and adjust timing in oscillators and RC timer circuits, where precise resistance control is necessary.
• Audio Equipment: In audio circuits, it’s used to fine-tune the performance of volume controls, tone settings, and signal gain.
• Sensor Circuits: Helps in adjusting the sensitivity of sensors in various applications by controlling the current or voltage signal.

Advantages

• Precision Adjustment: Provides users with the ability to dial in exact resistance values for optimal circuit performance.
• Space Efficient: Its small form factor allows for easy integration into dense PCB layouts without taking up much space.
• Cost-Effective: Offers a budget-friendly solution for making small adjustments without the need for multiple fixed resistors.
• Long-Lasting: Durable and reliable, preset resistors are built to withstand long-term usage without significant wear.

Common Uses

• Microcontroller Calibration: Fine-tunes analog inputs to ensure accurate data from connected sensors.
• Power Supply Tuning: Adjusts voltage or current settings in regulated power supplies for precision output.
• Robotic Controls: Helps adjust motor speed or direction in robotics applications where exact control is needed.
• Automotive Circuits: Used in applications like dashboard lighting or audio systems for precise control.

Conclusion

The 100K Ohm preset variable resistor (trimmer potentiometer) is a critical component for projects requiring fine-tuning and calibration. Its precision, ease of use, and versatility make it an ideal choice for applications in audio, sensors, power regulation, and more. Whether you’re a hobbyist or a professional, this adjustable resistor can help you achieve the exact performance your circuit needs.

Trimmer 22 PF (Pack of 5)