The ST-4TH2K is a trimming potentiometer manufactured by Copal Electronics Inc. These potentiometers are small, adjustable resistors used for fine-tuning and calibration of electronic circuits. They offer precise control over resistance, crucial for optimizing the performance of various electronic devices.

Applications

• Calibration of Electronic Instruments: Used in multimeters, oscilloscopes, function generators, and other testing equipment for accurate readings.
• Audio Equipment: Fine-tuning audio levels, equalization, and tone controls in amplifiers, mixers, and other audio processing devices.
• Power Supply Calibration: Adjusting and stabilizing output voltage and current in regulated power supplies.
• Sensor Calibration: Calibrating various types of sensors, including temperature, pressure, and light sensors.
• Feedback Control Systems: Used in servo motors and other feedback control systems for precise motor control and positioning.

Features

• High Adjustment Resolution: Enables fine and precise resistance adjustments.
• Stable Resistance Value: Ensures consistent performance over time and under varying environmental conditions.
• Compact Design: Suitable for use in space-constrained electronic circuit boards.
• Sealed Construction: Protects the internal components from dust, moisture, and other contaminants.
• Through-Hole Mounting: Designed for easy installation and soldering onto printed circuit boards.

Benefits

• Precise Circuit Tuning: Allows for accurate and reliable adjustment of electronic circuit parameters.
• Improved Device Performance: Optimizes the performance and accuracy of electronic devices.
• Cost-Effective Adjustment: Provides an economical means of fine-tuning electronic circuits.
• Easy to 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 resistance adjustments.

Additional Details

The ST-4TH2K likely utilizes a cermet resistive element for superior stability and long-term performance. The resistance is adjusted by turning a screw that moves a wiper arm along the resistive element. This particular model has a resistance value of 2K Ohms (2000 Ohms). The power rating is typically around 0.5W at 70°C. These trimming potentiometers are manufactured to meet industry standards for environmental protection and reliability.