PS2502-1X

Overview

The PS2502-1X is a single-channel optocoupler from the PS2502 series, manufactured by Isocom Components. It features an infrared LED input and a Darlington transistor output, providing high current transfer capability for robust signal isolation. The device utilizes a standard DIP-4 package suitable for through-hole mounting. Key electrical specifications include a maximum forward voltage of 1.4V, a typical rise time of 10μs, and a typical fall time of 10μs. It offers a minimum current transfer ratio of 200% at 1mA input current, ensuring efficient switching performance. The unit supports a maximum input current of 80mA and provides an isolation voltage of 5000Vrms between input and output circuits.

Feature Summary

• High current transfer ratio utilizing Darlington transistor output architecture
• Standardized DIP-4 through-hole package design for easy integration
• Robust electrical isolation with 5000Vrms dielectric strength
• Fast switching characteristics with 10μs typical rise and fall times

Applications

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

Procurement Notes

Verify that the specific part number PS2502-1X matches the required single-channel configuration and Darlington output type. Confirm that the DIP-4 package dimensions align with the target PCB footprint. Ensure that the 5000Vrms isolation rating meets the safety standards of the end application. Check for any specific handling requirements regarding electrostatic discharge during assembly.

Selection Notes

Select this component when high current gain is necessary without external amplification. The Darlington output allows for direct driving of low-current loads or relay coils. Consider the 10μs switching speed for applications requiring moderate frequency operation. Verify that the 80mA maximum input current fits within the driving circuit's capabilities. Compare against other series if higher bandwidth or lower capacitance is required.

Part Context

The PS2502-1X belongs to the PS2502 family of optocouplers, which are designed for general-purpose isolation applications. This series is known for its reliability and compliance with international safety standards. The single-channel configuration makes it suitable for simple isolation tasks where space efficiency is important. It serves as a replacement for older discrete isolation solutions in modern electronic designs.

Replacement Considerations

• PS2502-1