DPC357S-A-TR

Overview

The DPC357S-A-TR is a photodiode output optocoupler manufactured by Diodes Incorporated. It features an infrared emitting diode coupled to a high-speed photodiode detector within a compact SOP-4 surface-mount package. The device provides electrical isolation with a rated insulation voltage of 3.75 kV. Key electrical parameters include a collector-emitter voltage of 5 V and a current transfer ratio (CTR) ranging from 80% to 160% at a forward current of 5 mA.

Feature Summary

• High-speed signal transmission capability via integrated photodiode detection
• Compact SOP-4 surface-mount packaging for space-constrained designs
• Galvanic isolation between input and output circuits

Applications

• Digital signal isolation in communication interfaces
• Isolation barriers in industrial control systems
• Feedback loops in switching power supplies

Procurement Notes

Verify the specific suffix 'A' against official Diodes Incorporated documentation to confirm the exact Current Transfer Ratio binning, as suffixes often denote performance variations. Ensure the SOP-4 package type matches the target PCB footprint requirements. Confirm RoHS compliance status through the manufacturer's latest product compliance declarations before finalizing procurement specifications.

Selection Notes

Select this component when high-speed digital isolation is required in a small form factor. The photodiode output architecture offers faster response times compared to standard transistor-output optocouplers. Evaluate the 5 V collector-emitter voltage limit to ensure compatibility with downstream logic levels. Verify that the 3.75 kV isolation rating meets the safety standards applicable to the specific end-use environment.

Part Context

This part belongs to the DPC357S family of photodiode output optocouplers from Diodes Incorporated. The series utilizes a gallium arsenide infrared LED paired with a silicon photodiode. The 'TR' designation indicates tape-and-reel packaging, suitable for automated surface-mount assembly processes. The family is designed for applications requiring reliable data transmission across isolation barriers.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Cross-reference with other SOP-4 photodiode optocouplers only after verifying pinout compatibility and ensuring equivalent CTR and isolation voltage specifications.