The ST-4ETB 5K OHM(502) is a trimmer potentiometer manufactured by Copal Electronics Inc. It's an adjustable resistor with a resistance value of 5 kilo-ohms. It is designed to fine-tune electronic circuits and compensate for component variations. The (502) portion is likely a date or manufacturing code and does not affect general usage characteristics.

Applications:

• Calibration of electronic instruments
• Adjustment of bias currents in transistor circuits
• Setting gain levels in amplifiers
• Fine-tuning filters and oscillators
• Control of feedback loops in power supplies

Features:

• Small size for use in compact electronic devices
• Sealed construction to protect against dust and moisture
• High resolution for precise adjustments
• Stable resistance value over time and temperature variations
• 5k Ohm resistance value

Benefits:

• Allows for precise adjustment of circuit parameters
• Improves the accuracy and performance of electronic systems
• Reduces the need for expensive, close-tolerance components
• Simplifies the manufacturing and calibration process
• Enables compensation for component variations and environmental effects

Additional Details:

The ST-4ETB 5K OHM(502) is typically a single-turn trimmer potentiometer, adjustable with a small screwdriver. The resistive element is commonly composed of cermet or carbon film for stable performance. Consult the Copal Electronics datasheet for the ST-4ETB series for detailed specifications, including tolerance, power rating, temperature coefficient, and mechanical dimensions. Choose the appropriate resistance range and adjustment resolution for the specific application. Ensure proper soldering techniques are used to create a reliable connection. The specific features can vary slightly among models in the series, so always refer to the official datasheet.