The Copal Electronics Inc. SM-4TW2M is a surface mount trimming potentiometer designed for applications requiring precise resistance adjustment. This single-turn potentiometer is engineered for automated assembly processes and efficient utilization of PCB real estate. Its compact size and surface mount configuration make it a suitable choice for modern, densely packed electronic devices.

Applications

• Calibration of Medical Devices: Employed in medical equipment for accurate calibration of sensors and circuits.
• Industrial Automation Systems: Used in industrial controllers and feedback loops for precise adjustments.
• Test and Measurement Equipment: Integrated in test instruments for fine-tuning and calibration purposes.
• Power Supply Calibration: Used for adjusting output voltages and current limits in power supplies.
• Audio Equipment Tuning: Implemented in audio amplifiers and signal processors for volume and tone control.

Features

• Surface Mount Design: Enables automated assembly and reduces manufacturing costs.
• Single-Turn Adjustment: Offers a simple and direct method for setting the resistance value.
• Compact Footprint: Saves valuable PCB space, allowing for higher component density.
• Cermet Resistive Element: Provides excellent stability and long-term reliability.
• Wide Operating Temperature Range: Operates reliably in a variety of environmental conditions.

Benefits

• Precise Resistance Adjustment: Allows for accurate calibration and fine-tuning of electronic circuits.
• Space-Saving Design: Ideal for applications with limited PCB space.
• Automated Assembly: Simplifies the manufacturing process and reduces assembly time.
• Long-Term Stability: Ensures consistent performance over the lifespan of the product.
• Versatile Application: Suitable for a wide range of electronic applications.

Technical Specifications:

Typical specifications for the SM-4TW2M include a resistance range from 10 ohms up to 2 megaohms, a power rating of approximately 0.25W, and an operating temperature range from -55°C to +125°C. The potentiometer incorporates a cermet resistive element known for its stability and precision. The housing material is usually a high-temperature plastic suitable for surface mount soldering processes, ensuring compatibility with automated manufacturing techniques.

The SM-4TW2M is a versatile component that finds applications in a wide array of electronic devices, from industrial control systems to consumer electronics, due to its robustness, precision, and ease of integration.