PS2533-1-A

Overview

The CEL PS2533-1-A is a single-channel transistor output optocoupler featuring a GaAs infrared emitting diode and an NPN silicon Darlington phototransistor. It provides high isolation voltage of 5000 Vrms and a collector-emitter voltage rating of 350 V. The device operates with a maximum forward current of 80 mA and delivers a typical current transfer ratio of 4000%. It supports a collector current of 150 mA with a low saturation voltage of 1 V. Operating temperatures range from -55°C to +100°C, housed in a 4-pin DIP package.

Feature Summary

• High collector-to-emitter voltage capability for robust switching applications
• High isolation voltage ensuring safe signal transmission across potential barriers
• High current transfer ratio providing efficient drive capability with minimal input current

Applications

• AC mains input sensing circuits
• Industrial control system isolation
• Power supply feedback loops

Procurement Notes

Verify the specific suffix '-A' against the manufacturer's latest datasheet to confirm pinout configuration and packaging type. Ensure compliance with RoHS directives if required by your assembly process. Cross-reference the part number with official CEL or Renesas documentation to confirm availability status, as distribution channels may vary. Check for any recent product change notices regarding labeling or manufacturing site updates before finalizing procurement.

Selection Notes

Select this component when high voltage isolation and high collector voltage are required in a compact form factor. The Darlington output structure offers high gain, suitable for driving loads directly without additional amplification. Consider the thermal dissipation capabilities and operating temperature range relative to your enclosure design. Verify that the input forward current requirements align with your microcontroller or logic gate output capabilities.

Part Context

The PS2533 series belongs to NEC's (now CEL/Renesas) high-voltage optocoupler family. These devices are designed for applications requiring reliable electrical isolation between low-voltage control circuits and high-voltage power stages. The series includes variants with different pin counts and packages, such as DIP and SMD options, catering to diverse PCB layout needs.

Replacement Considerations

Direct replacements include PS2533L-1-V-A from Renesas/CEL, which shares similar electrical characteristics but in an SMD package. Other compatible alternatives within the same family may include PS2533-1 without the suffix, depending on packaging preferences. Always verify pin compatibility and insulation clearance distances when substituting.