PS2532-1-A

Overview

The PS2532-1-A is a single-channel transistor output optocoupler manufactured by CEL. It features an NPN phototransistor Darlington pair output configuration housed in a standard 4-pin DIP package for through-hole mounting. The device provides high isolation capability with a rated insulation voltage of 5000 Vrms between the input and output circuits. Key electrical parameters include a maximum collector-emitter saturation voltage of 1 V, a power dissipation rating of 300 mW, and a typical current transfer ratio of 6500%. It operates within a temperature range of -55°C to +100°C.

Feature Summary

• High current transfer ratio utilizing a Darlington phototransistor output structure
• Robust electrical isolation with 5000 Vrms insulation voltage rating
• Low collector-emitter saturation voltage for efficient switching performance

Applications

• Industrial control systems requiring galvanic isolation
• Solid-state relay driver circuits
• Microcontroller interface isolation

Procurement Notes

Verify component authenticity against official CEL datasheets due to market availability variations. Confirm that the specific suffix matches the required pinout and electrical characteristics. Check for RoHS compliance status as indicated in official documentation. Ensure the package type aligns with existing PCB footprints. Validate operating temperature ranges against application requirements before integration.

Selection Notes

Select this component when high gain is required from a single channel without external amplification. The Darlington output offers superior drive capability compared to standard phototransistors. Consider the thermal management requirements given the 300 mW power dissipation limit. Ensure the input forward current remains within specified limits to maintain optimal current transfer ratio. Verify that the 5000 Vrms isolation meets safety standards for the target application environment.

Part Context

This part belongs to the PS2532 series of optocouplers designed for general-purpose isolation applications. The series is characterized by its use of a Darlington output stage to achieve high current transfer ratios. It serves as a bridge between low-power control logic and higher-power load circuits while maintaining electrical safety separation.

Replacement Considerations

Cross-reference with PS2532L-1-A for potential functional equivalents. Verify pin compatibility and electrical parameter overlaps before substitution. Ensure replacement parts meet the same isolation voltage and package requirements.