PS2505-1-A

Overview

The PS2505-1-A is a single-channel transistor output optocoupler from the Renesas PS2505L series. It integrates a GaAs infrared LED and an NPN silicon phototransistor in a surface-mount SMD-PDIP-4 package. Key electrical parameters include a 5000 Vrms isolation voltage, 80 V maximum collector-emitter voltage, and 50 mA maximum collector current. The device supports a forward current of up to 80 mA with a typical forward voltage of 1.4 V. Current transfer ratio ranges from 80% to 600%. Operating temperatures span from -55°C to +100°C.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits
• Features AC input response capability for direct connection to AC sources
• Utilizes GaAs LED and NPN phototransistor for reliable signal transmission

Applications

• AC input sensing interfaces
• Power supply feedback loops
• Industrial control system isolation

Procurement Notes

Verify component status as NRND (Not Recommended for New Designs). Confirm package type matches SMD-PDIP-4 requirements. Ensure isolation voltage ratings meet circuit safety standards. Check RoHS compliance documentation before integration.

Selection Notes

Select this component for applications requiring AC input compatibility and high isolation voltage. Compare CTR range against logic level requirements. Verify thermal dissipation capabilities within the specified temperature range. Consider pinout compatibility with existing PCB layouts.

Part Context

Part of the PS2505L family offering transistor output optocouplers. Designed for general-purpose isolation in industrial and consumer electronics. Shares architectural similarities with PS2501 and PS2503 series but optimized for AC input applications.

Replacement Considerations

PS2505-1 is the through-hole equivalent. PS2505L-1-A is the surface mount variant with identical electrical characteristics. Verify pin compatibility when substituting.