KBL04-M3/A

Overview

The KBL04-M3/A is a single-phase bridge rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features a maximum average forward rectified current of 2.0 A and a repetitive peak reverse voltage of 400 V. The device utilizes glass passivation for junction protection and is designed for surface-mount applications in the KBLC package. It supports a high surge current capability and operates within a junction temperature range of -55 °C to +150 °C, complying with RoHS directives.

Feature Summary

• Glass passivated junctions provide mechanical stress resistance and improved reliability under thermal cycling conditions.
• Designed for surface-mount PCB mounting to facilitate automated assembly processes.
• High surge current capability ensures robustness against transient overcurrent events during power-up.

Applications

• General purpose AC-to-DC full-wave rectification in switching power supplies.
• Power supply circuits for home appliances and consumer electronics.
• Adapters and chargers requiring compact surface-mount rectification solutions.

Procurement Notes

Verify the specific suffix designation against the manufacturer's latest datasheet to confirm pinout compatibility and material composition. Ensure that the ordering quantity aligns with standard reel sizes if tape-and-reel packaging is required for SMT assembly lines. Cross-reference the part number with official Vishay documentation to confirm current production status and lead time estimates prior to procurement planning.

Selection Notes

Select this component when a 2.0 A current rating and 400 V reverse voltage are sufficient for the target circuit design. Consider the KBLC package dimensions for PCB layout constraints compared through-hole alternatives. Evaluate the thermal management requirements based on the specified junction temperature range and expected ambient operating conditions to ensure long-term reliability.

Part Context

This part belongs to the KBL series of glass-passivated bridge rectifiers from Vishay. The series offers various voltage ratings and current capacities tailored for general-purpose rectification. The M3 suffix typically indicates compliance with RoHS standards and absence of hazardous substances, distinguishing it from older non-compliant variants within the same electrical specification family.

Replacement Considerations

Direct substitutes include other 2.0 A, 400 V surface-mount bridge rectifiers in compatible packages such as KBPC or similar SMB/DFM variants from different manufacturers. Verify pin configuration and physical footprint compatibility before substitution. Ensure equivalent surge current ratings and thermal characteristics are maintained to avoid derating issues in the final application.