BYW29E-100,127

Overview

The BYW29E-100,127 is an ultrafast epitaxial rectifier diode from the BYW29E series, designed for high-frequency switched mode power supplies. It features a peak repetitive reverse voltage of 100 V and an average rectified forward current rating of 8 A in a SOD59 (TO220AC) package with tab cathode configuration. Key electrical characteristics include a maximum forward voltage of 0.895 V at 8 A and 150°C, a reverse recovery time of 25 ns, and a peak repetitive reverse surge current of 0.2 A. The device operates within a junction temperature range of -40°C to 150°C.

Feature Summary

• Ultra-fast switching performance with soft recovery characteristics suitable for high-frequency applications
• Rugged construction providing high thermal cycling capability and reverse surge resilience
• Low forward volt drop to minimize conduction losses during operation

Applications

• Output rectification in high frequency switched mode power supplies
• General purpose ultrafast rectification circuits requiring low reverse recovery charge
• Freewheeling diodes in DC-DC converters

Procurement Notes

Verify the specific suffix '127' against the manufacturer's latest ordering information to confirm packaging details such as tape and reel specifications or quantity per unit. Ensure the component status remains active by consulting the most recent product specification document, as NXP Semiconductors reserves the right to modify product descriptions and availability without notice. Cross-reference the datasheet revision date with your design requirements.

Selection Notes

Select this component when designing circuits requiring fast recovery times under 25 ns and robust handling of repetitive reverse surge currents. The TO220AC package facilitates efficient heat dissipation through the mounting base, making it suitable for applications where thermal resistance to ambient must be managed via heatsinking. Confirm that the 100 V reverse voltage rating aligns with the peak inverse voltage present in the target circuit topology.

Part Context

The BYW29E series comprises ultrafast, rugged epitaxial rectifier diodes manufactured by NXP Semiconductors. These devices are engineered specifically for demanding power conversion environments where speed and reliability are critical. The series utilizes standard leaded packages to ensure compatibility with existing manufacturing infrastructure while delivering superior switching performance compared to standard recovery diodes.

Replacement Considerations

Consult official substitution guides for equivalent ultrafast rectifiers with matching 100 V reverse voltage and 8 A current ratings. Verify pinout compatibility and thermal resistance values before integrating alternative components into the design.

FAQ

What is the maximum operating junction temperature for the BYW29E-100?

The maximum operating junction temperature is 150°C.

How is the cathode connected in the SOD59 package?

Pin 1 is the cathode, and the tab is also connected to the cathode.