The Copal Electronics Inc. SM-4TW101 is a surface mount trimming potentiometer designed for precision adjustment in electronic circuits. It's a compact, single-turn potentiometer that offers reliable performance and stability in various applications. Its small footprint makes it ideal for densely populated circuit boards where space is at a premium.

Applications

• Calibration of sensors: Used for fine-tuning the output of sensors to ensure accurate readings.
• Adjustment of audio levels: Implemented in audio equipment for adjusting volume, balance, or tone.
• Control of motor speed: Employed in motor control circuits for precise speed regulation.
• Setting reference voltages: Used in power supplies and voltage regulators to establish accurate reference voltages.
• Fine-tuning of frequency circuits: Integrated into oscillator and filter circuits for precise frequency adjustment.

Features

• Surface Mount Design: Allows for automated assembly and efficient use of PCB space.
• Single-Turn Adjustment: Provides a simple and direct means of setting the desired resistance value.
• Compact Size: Minimizes the footprint on the PCB, enabling high-density designs.
• High Stability: Offers stable performance over a wide range of operating conditions.
• Wide Resistance Range: Available in various resistance values to suit different circuit requirements.

Benefits

• Precise Adjustment: Enables accurate calibration and fine-tuning of electronic circuits.
• Space-Saving Design: Ideal for applications where PCB space is limited.
• Easy Integration: Compatible with standard surface mount assembly processes.
• Reliable Performance: Ensures stable and consistent operation over time.
• Cost-Effective Solution: Provides a cost-effective means of achieving precise circuit adjustments.

Technical Specifications:

While specific resistance values and power ratings vary depending on the exact model, typical specifications include a resistance range from 10 ohms to 1 megaohm, a power rating of 0.25W, and an operating temperature range of -55°C to +125°C. The potentiometer utilizes a cermet resistive element for long-term stability and precise adjustment. The housing is typically constructed of a heat-resistant plastic material suitable for reflow soldering processes.

The SM-4TW101 is widely used in industrial equipment, consumer electronics, and automotive applications. Its robust design and precise adjustment capabilities make it a versatile component for a variety of electronic circuits.