ISP824X

Overview

The ISP824X is a single-channel phototransistor output optocoupler from the ISP series by Isocom Components. It features an AC input LED and a phototransistor output in a 4-pin PDIP package. Key electrical parameters include a maximum forward voltage of 1.4V, a typical rise time of 4μs, and a typical fall time of 3μs. The device supports a maximum input current of 50mA and offers a high isolation voltage of 5.3kVrms. The current transfer ratio ranges from a minimum of 20% to a maximum of 300%. It operates within a temperature range of -30°C to 100°C and holds UL recognition.

Feature Summary

• AC input capability for direct mains or AC signal interfacing
• High isolation voltage rating for safety-critical applications
• Phototransistor output configuration for digital switching

Applications

• Mains voltage monitoring circuits
• Solid-state relay driver interfaces
• Industrial control system isolation

Procurement Notes

Verify the specific suffix against official Isocom documentation to confirm pinout and packaging variations. Ensure the selected variant meets the required isolation voltage standards for your application. Cross-reference the manufacturer part number with authorized distributors to confirm availability and authenticity. Check for any recent regulatory compliance updates such as RoHS status before finalizing procurement.

Selection Notes

Select this component when AC input driving is required without external rectification. Compare the current transfer ratio requirements against the load conditions. Verify that the operating temperature range covers the environmental extremes of the deployment site. Consider the PDIP package constraints for PCB layout and thermal management relative to similar surface-mount alternatives.

Part Context

This device belongs to the ISP series of high-density mounting phototransistor optically coupled isolators. The series is designed for robust performance in industrial environments. Isocom Components manufactures these devices to meet specific safety and isolation standards, providing reliable signal transmission across isolated barriers.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.