The ST-5ETW 100OHM(101) is a trimmer potentiometer manufactured by Copal Electronics Inc. It's a small adjustable resistor, used for fine-tuning and calibration in electronic circuits, with a resistance of 100 ohms. The (101) portion is probably a date or manufacturing code irrelevant for function. It's part of Copal's ETW series and is likely fully enclosed.

Applications:

• Fine tuning RF circuits
• Adjusting feedback in op-amp circuits
• Calibration of current sources
• Setting the reference voltage in comparators
• Compensation for component tolerances in analog circuits

Features:

• Small size for high-density PCB mounting
• Fully enclosed for environmental protection
• High resolution for precise adjustments
• Stable resistance value for long-term reliability
• 100 Ohm resistance value

Benefits:

• Enables precision adjustments in circuits
• Improves overall circuit performance and accuracy
• Reduces the need for precision components
• Simplifies circuit calibration and setup
• Increases system robustness

Additional Details:

The ST-5ETW 100OHM(101) likely utilizes a cermet resistive element, providing enhanced stability and longer lifespan. Adjustment is usually made using a screwdriver. The datasheet for the ST-5ETW will provide key specifications, including resistance tolerance, power dissipation rating, temperature coefficient, and physical dimensions. Consider your operating temperature range, need for adjustment fineness, and stability needs. Use good soldering practices for reliable connection. Specific pinout details should be checked on the datasheet.