PS2801A-1-P-A

Overview

The CEL PS2801A-1-P-A is a high isolation voltage photovoltaic output optoisolator housed in a compact 4-pin SSOP package with a 1.27 mm pin pitch. It provides an isolation voltage of 2500 Vrms and supports a maximum collector current of 50 mA. The device features a low collector-emitter saturation voltage of 300 mV and operates with a reverse voltage rating of 6 V. Power dissipation is rated at 120 mW, ensuring reliable signal transmission across isolated circuits while maintaining a small physical footprint for space-constrained designs.

Feature Summary

• High isolation voltage capability of 2500 Vrms for robust circuit separation
• Compact and thin 4-pin SSOP package design suitable for dense PCB layouts
• Photovoltaic output configuration providing galvanic isolation

Applications

• Industrial control systems requiring signal isolation
• Power supply feedback loops
• Microcontroller input/output isolation

Procurement Notes

Verify the specific suffix 'P-A' against the manufacturer's latest datasheet to confirm package type and tape/reel specifications. Ensure the ordering part number matches the required isolation voltage and current transfer ratio parameters. Cross-reference the manufacturer code with official Renesas or CEL documentation to avoid counterfeit components. Confirm lead times and availability directly with authorized distributors as stock levels fluctuate.

Selection Notes

Select this component when high isolation voltage is critical alongside a minimal board footprint. The photovoltaic output type is suitable for applications requiring zero quiescent current in the output stage. Compare the 50 mA collector current limit against load requirements. Consider the SSOP package constraints for thermal management and soldering profiles during assembly planning.

Part Context

This component belongs to the PS2801 series of high isolation voltage photocouplers manufactured by California Eastern Laboratories (CEL), now part of Renesas Electronics. The series is designed for general-purpose isolation applications where space saving and high reliability are prioritized. The PS2801A variant specifically denotes the enhanced isolation characteristics within the standard PS2801 family lineup.

Replacement Considerations

Direct substitutes include other PS2801-1 variants from CEL or Renesas, such as PS2801-1-F3-P-A, provided the pinout and electrical ratings match. Verify compatibility with equivalent parts from other manufacturers offering similar photovoltaic output optoisolators with 2500 Vrms isolation and SSOP-4 packaging.