The Copal Electronics Inc. ST-4ETA10K-OHM(103) is a trimming potentiometer designed for precise resistance adjustment in electronic circuits. The "103" designation typically indicates a resistance value of 10 kilohms (10 x 10^3 ohms). As a trimming potentiometer, it's intended for infrequent adjustments, often during calibration or setup.

Applications

• Calibration of circuits and instruments
• Gain adjustment in amplifiers
• Offset nulling in operational amplifiers
• Setting voltage levels in power supplies
• Adjusting frequency in oscillators
• Fine-tuning sensors
• Robotics control systems

Features

• 10kΩ resistance
• Compact design
• Carbon composition resistive element
• Through-hole mounting
• Top adjustment screw
• High resolution for fine-tuning

Benefits

• Enables precise calibration of electronic circuits
• Provides a stable and reliable resistance value
• Allows for easy adjustment with a screwdriver
• Suitable for a wide range of applications
• Cost-effective solution for trimming applications

Additional Details

This potentiometer features a carbon resistive element. The power rating for this series is usually quite low, so care should be taken to avoid exceeding the specified limit. The temperature coefficient will influence the resistance value across different temperatures. The exact rotational life will vary. The ST-4ETA series is often fully sealed. The part is typically adjusted with a screwdriver. Always consult the datasheet for accurate electrical and mechanical characteristics and mounting recommendations.

When integrating into a circuit, ensure the power rating is not exceeded. Use proper soldering techniques to prevent damage. It's designed for infrequent adjustment; excessive adjustments can reduce its lifespan. Consider environmental factors such as temperature and humidity when selecting the potentiometer.