BY229-800HE3/45

Overview

The BY229-800HE3/45 is a fast switching plastic rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features a glass passivated chip junction and is housed in a TO-220AC package. The device supports a maximum recurrent peak reverse voltage of 800 V and an average forward rectified current of 8.0 A. Key electrical parameters include a maximum instantaneous forward voltage of 1.85 V at 20 A, a peak forward surge current of 100 A, and a maximum reverse recovery time of 145 ns. The component operates within a junction temperature range of -40 °C to +150 °C.

Feature Summary

• Glass passivated chip junction for high reliability
• Superfast recovery time optimized for high efficiency applications
• High forward surge capability with low leakage current
• Automotive grade HE3 suffix indicates AEC-Q101 qualification

Applications

• Fast switching rectification in power supplies
• Inverter circuits
• Converter topologies
• Freewheeling diode applications

Procurement Notes

Verify the specific ordering suffix to confirm the package type and compliance grade. The HE3 designation signifies high reliability and automotive qualification (AEC-Q101), while the E3 suffix denotes commercial grade RoHS compliance. Confirm the exact part number matches the required voltage rating and thermal characteristics before procurement.

Selection Notes

Select this component when high-speed switching performance is critical for power conversion efficiency. The 800 V rating suits high-voltage DC link applications. Ensure adequate heatsinking is provided, as the thermal resistance from junction to case is 2.0 °C/W. Verify that the operating environment meets the specified temperature range and surge current requirements.

Part Context

This component belongs to the BY229 series of fast switching plastic rectifiers offered by Vishay. The series includes variants with different reverse voltage ratings ranging from 200 V to 800 V. The BY229-800 variant specifically addresses high-voltage requirements within this family, sharing common structural features like the glass passivated junction and standardized TO-220AC packaging.

Replacement Considerations

BY229-800-E3/45

FAQ

What does the HE3 suffix indicate for this component?

The HE3 suffix indicates that the component is of high reliability grade and is qualified according to the AEC-Q101 standard for automotive applications.

What is the maximum reverse recovery time for the BY229-800?

The maximum reverse recovery time (trr) is 145 ns under specified test conditions.