The ST-4TH202 is a trimming potentiometer manufactured by Copal Electronics Inc. Trimming potentiometers, also known as trimmers, are small adjustable resistors used for calibration, tuning, and fine-tuning electronic circuits. They allow for precise adjustments to resistance values, which is critical for optimizing circuit performance.

Applications

• Calibration of electronic test equipment: Used in multimeters, oscilloscopes, and signal generators to ensure accurate readings.
• Audio equipment: Fine-tuning volume levels, equalization, and tone controls in amplifiers, mixers, and equalizers.
• Power supplies: Adjusting output voltage and current levels for optimal performance and stability.
• Sensor calibration: Used to calibrate sensors like temperature, pressure, and light sensors for accurate measurements.
• Motor control circuits: Fine-tuning motor speed, position, and torque in servo motors and other control systems.

Features

• High resolution: Provides fine and precise adjustments to resistance values.
• Stable resistance: Maintains consistent resistance over time and temperature variations.
• Compact size: Allows for easy integration into densely populated circuit boards.
• Sealed construction: Protects the internal components from dust, moisture, and other environmental contaminants.
• Through-hole mounting: Designed for easy installation and soldering on printed circuit boards.

Benefits

• Precise circuit tuning: Enables accurate and reliable adjustments to circuit parameters.
• Improved device performance: Optimizes the performance and accuracy of electronic devices.
• Cost-effective solution: Provides an economical means of fine-tuning circuits.
• Ease of use: Simple to install and adjust, even for users with limited technical expertise.
• Versatile application: Suitable for a wide range of electronic applications requiring precise adjustments.

Additional Details

The ST-4TH202 likely uses a cermet resistive element for enhanced stability and longevity. The resistance is adjusted using a screw-driven wiper arm. This specific model has a resistance value of 2K Ohms (2000 ohms). Typical power rating is approximately 0.5W at 70°C. These potentiometers are built to meet industry standards concerning environmental conditions and reliability.