The Copal Electronics Inc. SM-4TW104 is a surface mount trimming potentiometer used for fine-tuning electronic circuits. It is designed for applications requiring precise adjustment in a compact form factor. As a single-turn potentiometer, it provides a direct and straightforward method for setting resistance values. Its surface mount design is optimal for automated assembly and efficient use of printed circuit board (PCB) space.

Applications

• Calibration of Instrumentation: Used in test and measurement equipment for accurate calibration of readings.
• Audio Equipment: Implemented in audio circuits for volume control, balance adjustments, and tone shaping.
• Power Supply Adjustment: Used for fine-tuning output voltages in power supplies and voltage regulators.
• Sensor Adjustment: Employed in sensor circuits for calibrating sensor outputs and ensuring accurate measurements.
• Motor Speed Control: Integrated into motor control systems for precise speed regulation.

Features

• Surface Mount Technology (SMT): Designed for efficient automated assembly on PCBs.
• Single-Turn Design: Allows for simple and direct adjustment of the resistance value.
• Compact Size: Occupies minimal PCB space, enabling high-density circuit designs.
• Cermet Element: Provides high stability and long-term reliability.
• Wide Resistance Range: Available in a variety of resistance values to suit diverse circuit requirements.

Benefits

• Precise Adjustment: Facilitates accurate calibration and fine-tuning of electronic systems.
• Space-Efficient: Reduces the overall size of electronic devices.
• Easy to Integrate: Compatible with standard surface mount assembly processes.
• Reliable Performance: Provides stable and consistent operation over a wide range of environmental conditions.
• Cost-Effective: Provides a cost-efficient solution for precise resistance adjustments.

Technical Specifications:

Specific resistance values and power ratings may vary, however, typical specifications include a resistance range from 10 ohms to 1 megaohm. The power rating is usually around 0.25W. The operating temperature typically ranges from -55°C to +125°C. The materials used in the construction of the SM-4TW104 are chosen to provide high reliability and stability. The cermet resistive element ensures long-term stability and precise adjustment. The housing is typically constructed of heat-resistant plastic, allowing it to withstand reflow soldering temperatures.

The SM-4TW104 is frequently used in industrial automation, consumer electronics, and automotive control systems due to its robust design and precise adjustment capabilities.