BYM11-400HE3_A/I

Overview

The BYM11-400HE3_A/I is a fast recovery rectifier diode manufactured by Vishay Semiconductors. It features a single configuration in a DO-213AB (SMB) surface-mount package. Key electrical parameters include a repetitive peak reverse voltage of 400 V and an average forward current rating of 1 A. The device exhibits a maximum forward voltage of 1.3 V at rated current and a low leakage current of 5 µA. It supports a non-repetitive peak forward surge current of 30 A and has a typical reverse recovery time of 150 ns. The component operates within a junction temperature range of -65 °C to +175 °C.

Feature Summary

• Glass passivated chip junction for enhanced reliability and stability under varying thermal conditions.
• Low forward voltage drop characteristics designed to minimize conduction losses during operation.
• Low leakage current performance ensuring efficient isolation when the device is in the reverse-biased state.

Applications

• High-frequency switching power supplies requiring fast recovery characteristics.
• Free-wheeling diode applications in inductive load circuits.
• General-purpose rectification in compact surface-mount electronic assemblies.

Procurement Notes

Verify the specific suffix designation against official Vishay documentation to confirm exact packaging and environmental compliance status. Ensure the ordering part number matches the required tape-and-reel or cut-tape format for automated assembly processes. Cross-reference the manufacturer's latest datasheet to confirm active status and any potential design-for-manufacturing updates prior to final procurement decisions.

Selection Notes

Select this component for designs requiring a balance of high voltage blocking capability and moderate current handling in a small surface-mount footprint. The 150 ns reverse recovery time makes it suitable for higher frequency applications compared to standard rectifiers. Consider the 175 °C maximum junction temperature rating for environments with elevated thermal loads or limited cooling provisions.

Part Context

This device belongs to the BYM11 series of glass-passivated fast recovery rectifiers from Vishay. The series is engineered for general-purpose rectification where space constraints necessitate surface-mount technology. The HE3 suffix typically indicates Halogen-free, Green, and RoHS-compliant manufacturing, aligning with modern environmental standards for electronic components.

Replacement Considerations

Consult Vishay's official cross-reference guides for verified substitutes. Potential alternatives may include other SMB-packaged 1A 400V fast recovery diodes from the same manufacturer, provided they meet identical electrical specifications and pinout configurations.