PS2532-4-A

Overview

The PS2532-4-A is a four-channel optoisolator manufactured by CEL. It integrates a GaAs infrared LED with NPN silicon Darlington phototransistors. Key electrical parameters include a maximum collector current of 150 mA, a collector-emitter saturation voltage of 1 V, and a reverse voltage rating of 6 V. The device offers an isolation voltage of 5000Vrms and features a minimum current transfer ratio of 1500% at 1 mA input. Power dissipation is rated at 240 mW.

Feature Summary

• Contains four independent channels for multi-signal isolation
• Utilizes NPN silicon Darlington-connected phototransistors for high gain
• Provides high isolation voltage capability

Applications

• Industrial control systems requiring signal isolation
• Power supply feedback loops
• Microcontroller interface circuits

Procurement Notes

Verify the specific suffix 'A' against official datasheets to confirm pinout and packaging details. Confirm whether the part status is active or obsolete before procurement. Ensure compatibility with existing PCB footprints and thermal management requirements. Check for lead-free compliance if required by project specifications.

Selection Notes

Select this component when high current transfer ratio and multi-channel isolation are required. The Darlington output structure provides significant amplification but may result in slower switching speeds compared to single transistor outputs. Evaluate the 150 mA collector current limit against load requirements. Consider the 5000Vrms isolation barrier for safety-critical applications.

Part Context

This part belongs to the PS2532 series of high collector-to-emitter voltage multi-photocouplers. The series includes variants with one, two, and four channels. The PS2532-4 specifically denotes the four-channel configuration within this family of optically coupled isolators designed for robust signal transmission across isolated boundaries.

Replacement Considerations

Direct substitutes may include other four-channel Darlington optoisolators from manufacturers like NEC/ELNA or Vishay. Verify equivalent isolation voltage, CTR, and package dimensions. Cross-reference pinouts carefully as variations exist between families.