KBP08M-M4/51

Overview

The KBP08M-M4/51 is a glass-passivated single-phase bridge rectifier manufactured by Vishay General Semiconductor. It features an average forward current rating of 1.5 A and a maximum repetitive peak reverse voltage of 800 V. The device utilizes a KBPM through-hole package with a 4-SIP form factor. Electrical characteristics include a maximum forward voltage of 1.1 V at 3.14 A and a leakage current of 5 µA at 800 V. The component supports a junction temperature range from -55°C to 150°C and offers high surge current capability.

Feature Summary

• Glass passivation provides mechanical strength and protection against soldering tools and chemical solvents.
• High surge current capability ensures reliability during transient load conditions.
• Designed for printed circuit board mounting with high case dielectric strength.

Applications

• General purpose AC-to-DC bridge full-wave rectification
• Switching power supply input stages
• Home appliance control circuits

Procurement Notes

This specific part number, KBP08M-M4/51, is listed as End-of-Life (EOL) or discontinued in available distributor records. Verification of current production status and alternative sourcing channels is required before procurement planning. Check for official Product Change Notifications (PCN) from the manufacturer to confirm final availability dates and recommended replacement strategies.

Selection Notes

Select this component when an 800 V blocking voltage and 1.5 A continuous current are required in a compact KBPM package. Ensure the application environment stays within the specified -55°C to 150°C junction temperature range. Verify that the PCB layout accommodates the 4-SIP through-hole footprint and that thermal management meets the device's dissipation requirements under expected load conditions.

Part Context

The KBP series represents Vishay's standard line of glass-passivated bridge rectifiers. The 'M' suffix typically denotes the 800 V voltage rating variant within this family. The M4 suffix indicates lead-free termination plating compliant with RoHS directives. This component belongs to the broader KBP005M through KBP10M product group, sharing similar physical dimensions and mounting characteristics across different voltage and current ratings.

Replacement Considerations

Direct substitutes within the same Vishay KBP series include KBP08M-E4/51 or KBP08M-E4/45, which share identical electrical ratings and package dimensions. Cross-manufacturer equivalents must match the 1.5 A current, 800 V reverse voltage, and KBPM through-hole package constraints. Verify pinout compatibility and thermal performance before substitution.