BY550-800

Overview

The BY550-800 is a standard recovery rectifier diode manufactured by Diotec Semiconductor. It features a maximum repetitive peak reverse voltage of 800 V and an average forward rectified current of 5 A. The device utilizes a DO-201 axial through-hole package with dimensions of approximately 5.4 x 7.5 mm. Key electrical characteristics include a forward voltage of 1.0 V at 5 A, a reverse leakage current of 5 µA at 800 V, and a typical reverse recovery time of 1.5 µs. It operates within a junction temperature range of -55°C to +175°C.

Feature Summary

• High voltage capability with 800 V repetitive peak reverse voltage rating
• Robust 5 A average forward current handling in a compact axial package
• Standard recovery characteristics suitable for general-purpose rectification
• Extended thermal stability supporting operation up to 175°C junction temperature

Applications

• Industrial power supply rectification circuits
• General-purpose AC to DC conversion stages
• Battery charging systems requiring high voltage isolation
• Automotive electronics power management modules

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct packaging configuration, such as cut tape or tape and reel options. Confirm RoHS compliance status and environmental declarations directly from the product documentation before finalizing procurement specifications.

Selection Notes

Select this component when circuit requirements demand an 800 V blocking voltage combined with 5 A continuous current capacity. Ensure the application environment supports through-hole mounting and that the standard recovery speed aligns with the switching frequency constraints of the design.

Part Context

This part belongs to the BY550 series of silicon rectifiers produced by Diotec Semiconductor. The series offers various voltage ratings ranging from 50 V to 1000 V while maintaining a consistent 5 A current rating and DO-201 package form factor across the lineup.

Replacement Considerations

Equivalent parts include the 1N5408 series diodes which share similar 800 V and 3 A ratings, though current capacity differs. Verify pinout compatibility and thermal derating curves when substituting with other manufacturers' axial rectifiers.