PS2503L-1-K-A

Overview

The PS2503L-1-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 phototransistor within a compact 4-SMD, Gull Wing package. The device provides electrical isolation between input and output circuits via optical transmission. Key specifications include a 5000 Vrms isolation voltage rating and operation within a standard temperature range. The component is designed for applications requiring reliable signal transfer across isolated domains while maintaining low input current requirements.

Feature Summary

• Integrates GaAs LED and NPN phototransistor for high-speed switching
• Provides robust electrical isolation with 5000 Vrms dielectric strength
• Utilizes compact 4-SMD surface mount packaging for automated assembly

Applications

• Industrial control systems
• Communication equipment
• Power supply feedback loops

Procurement Notes

Verify the specific suffix 'K-A' against the manufacturer's latest documentation to confirm tape and reel configuration or RoHS compliance status. Ensure the ordering part number matches the required package variant and lead-free specifications. Cross-reference with official Renesas or CEL catalogs to validate availability and any recent design changes before finalizing procurement orders.

Selection Notes

Select this component when a single-channel transistor output optoisolator is required for digital signal isolation. Consider the 5000 Vrms isolation rating for safety-critical interfaces. Evaluate the CTR (Current Transfer Ratio) and propagation delay parameters from the datasheet to ensure compatibility with the target circuit speed and drive requirements compared to alternative phototransistor couplers.

Part Context

This part belongs to the NEPOC series of low input current, high-speed switching multi photocouplers produced by CEL. The series is characterized by its use of GaAs LEDs for efficient light emission and silicon phototransistors for detection. The PS2503L-1-K-A represents a specific packaging and compliance variant within this broader family of optocouplers designed for general-purpose isolation tasks.

Replacement Considerations

PS2503L-1-A is listed as a similar substitute option in distributor databases. Verify pinout compatibility and electrical parameter equivalence before substitution.