PS2502-2

Overview

The PS2502-2 is a dual-channel Darlington output optocoupler manufactured by Isocom Components. It features an 8-pin DIP package with through-hole mounting. The device provides high isolation voltage and utilizes NPN phototransistor outputs configured in a Darlington arrangement for high current transfer ratio. Key electrical parameters include a maximum forward voltage of 1.4V, a typical rise time of 100μs, and a typical fall time of 100μs. It operates within a temperature range of -30°C to 100°C.

Feature Summary

• Dual-channel configuration for independent signal isolation
• Darlington output structure providing high current gain
• High isolation voltage capability for safety separation
• Through-hole DIP packaging for standard board integration

Applications

• Industrial control systems requiring galvanic isolation
• Solid-state relay driver circuits
• Microcontroller interface isolation
• Power supply feedback loops

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to ensure correct pinout and performance characteristics. Confirm that the component meets required safety certifications for the target application environment. Check for end-of-life status or recommended alternative part numbers from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when high current transfer ratio is required without external amplification. The Darlington output suits applications needing significant drive capability from low input currents. Ensure the isolation voltage rating exceeds the system's working voltage requirements. Consider the slower switching speed compared to single transistor outputs when designing for high-frequency signals.

Part Context

This component belongs to the PS2502 series of optocouplers, which are designed for general-purpose isolation applications. The series typically offers robust performance in industrial environments. Isocom Components produces this line to provide reliable signal transmission across isolated boundaries while maintaining compact form factors suitable for various electronic assemblies.

Replacement Considerations

Consult official substitution guides for compatible alternatives. Verify pin compatibility and electrical parameter equivalence before replacing.