The Copal Electronics Inc. ST-32 series is a line of precision trimming potentiometers, designed for accurate and reliable resistance adjustment in a variety of electronic applications. The ST-32ETA 5K OHM(53) model specifically offers a resistance value of 5,000 ohms (5 kΩ), making it suitable for circuits requiring fine-tuning within this particular range.

Applications:

• Signal conditioning circuits: Used for adjusting signal levels in sensor interfaces.
• Operational amplifier circuits: Employed for setting gain and offset.
• Voltage dividers: Utilized for creating precise voltage references.
• Filter networks: Applied in active filters for adjusting cutoff frequencies.
• Industrial automation equipment: Incorporated in control loops for precise adjustments.

Features:

• High stability: Maintains consistent resistance values over time and temperature.
• Precise adjustability: Allows for fine-tuning of resistance with good resolution.
• Sealed construction: Protects the resistive element from dust and moisture.
• Compact size: Space-saving design for use in densely populated circuit boards.
• Cermet element: Offers superior stability and long life.
• ETA Configuration: Specifies the terminal configuration of the potentiometer.
• 5k Ohm Resistance: Perfectly suited for the 5,000 ohm range.

Benefits:

• Improved circuit performance: Enables precise adjustments, leading to enhanced circuit operation.
• Reduced drift: Minimizes changes in resistance value over time, improving long-term stability.
• Increased reliability: Robust design ensures dependable performance in demanding environments.
• Simplified calibration: Facilitates easier and more accurate calibration procedures.
• Space-saving design: Compact form factor allows for use in miniaturized electronic devices.

Additional Details:

The ST-32 series typically features a cermet resistive element, known for its excellent stability and low temperature coefficient. The sealed construction protects the element from dust, moisture, and other environmental factors, ensuring reliable operation. The 5k ohm resistance makes it ideal for applications requiring a moderate resistance value. The 'ETA' designation likely refers to the lead configuration and mounting style for easy integration into circuit boards. The power rating for the ST-32 series is generally around 0.25W, and care must be taken to not exceed this value. (53) likely corresponds to a production batch or date code.