2KBP04M-M4/51

Overview

The Vishay General Semiconductor - Diodes Division 2KBP04M-M4/51 is a glass passivated single-phase bridge rectifier housed in the KBPM case style. It provides a maximum repetitive peak reverse voltage (VRRM) of 400 V and supports a maximum average forward output rectified current (IF(AV)) of 2.0 A at an ambient temperature of 55 °C. The device exhibits a maximum instantaneous forward voltage drop (VF) of 1.1 V per diode and a peak forward surge current (IFSM) capability of 60 A. Electrical characteristics include a maximum DC reverse current (IR) of 5 µA at rated blocking voltage and a typical junction capacitance (CJ) of 25 pF. Thermal resistance values are specified as 30 °C/W from junction to ambient and 11 °C/W from junction to lead.

Feature Summary

• Glass passivation for enhanced junction protection
• High surge current capability for robust operation
• High case dielectric strength for safety isolation

Applications

• AC-to-DC bridge full wave rectification
• Switching power supply circuits
• Home appliances
• Office equipment
• Telecommunication applications

Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm the delivery mode and packaging configuration. Confirm RoHS compliance status and terminal plating specifications, such as silver-plated leads, prior to procurement to ensure compatibility with assembly processes and regulatory requirements.

Selection Notes

Select this component based on the required 400 V reverse voltage rating and 2 A continuous current capacity. Ensure the application environment remains within the specified operating junction and storage temperature range of -55 °C to +165 °C. Evaluate thermal management needs using the provided thermal resistance parameters to maintain safe operating temperatures under load.

Part Context

This part belongs to the 2KBP series of glass passivated single-phase bridge rectifiers manufactured by Vishay General Semiconductor. The series encompasses multiple voltage ratings ranging from 50 V to 1000 V, all sharing the same KBPM case style and general electrical characteristics. This specific model represents the 400 V variant within that product family.

Replacement Considerations

Cross-reference with other Vishay models in the 2KBP series or equivalent 2 A, 400 V bridge rectifiers from other manufacturers. Verify matching case dimensions, pinout configurations, and thermal performance metrics before substitution.