2KBP04M-E4/51

Overview

The Vishay General Semiconductor - Diodes Division 2KBP04M-E4/51 is a glass passivated single-phase bridge rectifier utilizing the KBPM case style. It provides a maximum average forward output rectified current of 2.0 A at an ambient temperature of 55 °C and supports a maximum repetitive peak reverse voltage of 400 V. The device features a peak forward surge current capability of 60 A for a single half-sine wave superimposed on rated load. Electrical characteristics include a maximum instantaneous forward voltage drop of 1.1 V per diode at 3.14 A and a maximum DC reverse current of 5 µA at rated DC blocking voltage and 25 °C. The component operates within a junction and storage temperature range of -55 to +165 °C.

Feature Summary

• Glass passivation protects the junctions against mechanical stresses
• High surge current capability handles transient overload conditions
• High case dielectric strength ensures electrical isolation
• Epoxy material meets UL 94V-0 flammability rating

Applications

• AC-to-DC bridge full-wave rectification in switching power supplies
• Rectification circuits for home appliances
• Power conversion stages in office equipment
• Telecommunication applications requiring general-purpose rectification

Procurement Notes

Verify the specific ordering suffix /51 corresponds to the required delivery mode, which indicates an anti-static PVC tray with a base quantity of 600 units. Confirm that the E4 suffix aligns with consumer grade specifications and RoHS compliance requirements for the target assembly process. Ensure the procurement documentation matches the exact part number to avoid discrepancies in terminal finish or packaging configuration.

Selection Notes

Select this component when a 400 V peak reverse voltage rating is required alongside a 2 A continuous forward current capacity. The KBPM package is suitable for printed circuit board mounting where high surge current tolerance is necessary. Verify that the operating ambient temperature does not exceed limits without applying derating factors as shown in the thermal characteristics curves. Ensure the application environment accommodates the specified junction temperature range up to 165 °C.

Part Context

This component belongs to the 2KBP series of glass passivated single-phase bridge rectifiers manufactured by Vishay General Semiconductor. The series encompasses various voltage ratings from 50 V to 1000 V, sharing common mechanical dimensions and thermal characteristics across the KBPM case style. The 2KBP04M variant specifically addresses designs requiring a 400 V blocking voltage level within this standardized product family.

Replacement Considerations

Direct replacements within the same series include the 2KBP02M for lower voltage applications (200 V) or the 2KBP06M for higher voltage requirements (600 V), provided the current and thermal ratings remain compatible. Cross-manufacturer equivalents must be verified for identical pinout configurations, forward voltage drops, and surge current capabilities to ensure seamless integration into existing PCB layouts.