PS2502L-1-E3-K-A

Overview

The PS2502L-1-E3-K-A is a single-channel optically coupled isolator manufactured by CEL. It integrates a Gallium Arsenide (GaAs) infrared light emitting diode with an NPN silicon Darlington phototransistor output. The device provides high isolation voltage of 5000 Vrms between input and output circuits. It features a low saturation voltage drop and high current transfer ratio for efficient signal transmission. The component is designed for surface-mount applications, offering reliable performance in industrial environments.

Feature Summary

• Integrates GaAs LED with NPN Darlington phototransistor
• Provides 5000 Vrms insulation voltage for safety isolation
• Features low saturation voltage and high current transfer ratio

Applications

• Industrial automation control systems
• Power supply feedback loops
• Solid-state relay driver circuits

Procurement Notes

Verify the specific suffix K-A against official datasheets to confirm package type and tape/reel specifications. Ensure compatibility with existing PCB footprints and reflow soldering profiles. Confirm RoHS compliance status through manufacturer documentation prior to integration into final assemblies.

Selection Notes

Select this component when high isolation voltage and robust noise immunity are required in compact surface-mount designs. The Darlington output configuration offers higher gain compared to standard transistor outputs, suitable for driving loads directly without additional amplification stages in low-power applications.

Part Context

This part belongs to the NEPOC series of optocouplers from CEL. It is functionally related to the PS2502L-1 family, differing primarily in packaging and trailing identifiers. The series is characterized by high reliability and long-term stability for critical isolation applications in electronic equipment.

Replacement Considerations

PS2502L-1-E3-A