4N32S(TA)-V

Overview

The 4N32S(TA)-V is a single-channel photodarlington output optocoupler manufactured by Everlight Electronics. It integrates an aluminum gallium arsenide infrared emitting diode with a high-gain darlington phototransistor detector, providing electrical isolation between input and output circuits. The device features a 6-SMD surface-mount package designed for automated assembly processes. Key electrical specifications include a maximum collector-emitter voltage of 80 V and a peak forward current rating of 60 mA. The unit offers a high isolation voltage capability of 5000 Vrms to ensure robust circuit protection against transient voltages.

Feature Summary

• Integrates a high-gain darlington phototransistor output stage for enhanced signal amplification
• Provides high-voltage electrical isolation between the infrared LED input and photodetector output
• Constructed with an aluminum gallium arsenide infrared emitter for efficient optical coupling

Applications

• General-purpose digital signal isolation in industrial control systems
• Switching power supply feedback loops for primary-to-secondary side communication
• Microcontroller interface circuits requiring galvanic isolation from high-voltage loads

Procurement Notes

Verify the specific suffix designation to confirm the exact packaging configuration and compliance status prior to ordering. Ensure that the selected component matches the required thermal management specifications for the intended operating environment. Cross-reference the manufacturer's latest documentation to confirm active production status and any potential design changes or obsolescence notices associated with this part number.

Selection Notes

Select this component when a higher current transfer ratio is required compared to standard phototransistor outputs. The darlington configuration provides significant gain but results in slower switching speeds relative to single-transistor alternatives. Evaluate the trade-off between the increased sensitivity and the extended propagation delay characteristics inherent to the darlington structure for the specific application timing requirements.

Part Context

This component belongs to the 4N32 series of optocouplers produced by Everlight Electronics. The series utilizes a standardized six-pin surface-mount footprint compatible with common PCB layouts. The product line is engineered to meet international safety standards for insulation, making it suitable for applications requiring certified isolation barriers in consumer and industrial electronic equipment designs.

Replacement Considerations

Direct functional equivalents within the same family include the 4N32S1(TA)-V variant. Verify pinout compatibility and electrical parameter tolerances before substituting with components from other manufacturers.