2KBP04M-E4/45

Overview

The Vishay 2KBP04M-E4/45 is a glass-passivated single-phase bridge rectifier in the KBPM through-hole package. It provides a maximum repetitive peak reverse voltage (VRRM) of 400 V and an average forward output rectified current (IF(AV)) of 2.0 A at 55 °C ambient temperature. The device supports a peak forward surge current (IFSM) of 60 A for a single half-sine wave. Electrical characteristics include a maximum instantaneous forward voltage drop (VF) of 1.1 V at 3.14 A and a maximum DC reverse current (IR) of 5 µA at rated blocking voltage. Operating junction and storage temperatures range from -55 °C to +165 °C.

Feature Summary

• Glass passivation provides mechanical strength and protection against soldering tool damage
• High case dielectric strength ensures reliable operation under electrical stress
• Epoxy casing meets UL 94V-0 flammability rating for safety compliance

Applications

• AC-to-DC bridge full-wave rectification in switching power supplies
• Power circuits for home appliances
• Office equipment power systems
• Telecommunication applications

Procurement Notes

Verify component authenticity by checking manufacturer markings and datasheet alignment. Confirm RoHS compliance status and specific ordering suffixes match project requirements. Validate thermal performance parameters against actual PCB mounting conditions before finalizing procurement decisions.

Selection Notes

Select this component for general-purpose AC-to-DC conversion requiring 400 V blocking capability and 2 A continuous current. Ensure the KBPM package fits the available PCB footprint. Verify that the 60 A surge current rating accommodates expected inrush currents without exceeding thermal limits during operation.

Part Context

This part belongs to the 2KBP series of Vishay General Semiconductor diodes, specifically designed as glass-passivated single-phase bridge rectifiers. The series covers voltage ratings from 50 V to 1000 V with a consistent 2 A current capacity across variants.

Replacement Considerations

Compatible substitutes include Diodes Incorporated KBP02G and KBP202G, which offer similar specifications and pin configurations for direct replacement in existing designs.