KBJA1508-BP

Overview

The KBJA1508-BP is a single-phase glass passivated bridge rectifier manufactured by Micro Commercial Components. It provides an average forward current of 15 A and supports a maximum repetitive peak reverse voltage of 800 V. The device features a maximum instantaneous forward voltage of 1.0 V at 7.5 A and a peak forward surge current capability of 220 A for an 8.3 ms half-sine wave. Operating junction temperature ranges from -55°C to +150°C, with a thermal resistance of 1.5°C/W from junction to case.

Feature Summary

• Glass passivation protects the junctions against mechanical stress
• Epoxy meets UL 94 V-0 flammability rating
• Lead-free finish and RoHS compliant construction

Applications

• General purpose AC to DC power supply rectification
• Battery charging circuits
• Industrial control systems requiring high surge current handling

Procurement Notes

Verify authenticity through authorized MCC distributors or direct purchase to avoid counterfeit components. Confirm the specific ordering suffix matches required compliance standards. Check datasheet revisions for potential updates to mechanical dimensions or electrical ratings before finalizing procurement specifications.

Selection Notes

Select this component when an 800 V blocking voltage is required alongside a 15 A continuous current rating. Ensure adequate heatsinking is provided to maintain case temperatures within limits, as the rated current depends on thermal management. Verify that the JB package footprint aligns with the target PCB layout constraints.

Part Context

This part belongs to the KBJA1506 through KBJA1510 series, which share identical mechanical and thermal characteristics while varying in voltage ratings. The KBJA1508 specifically bridges the gap between the 600 V and 1000 V variants, offering 800 V blocking capability for intermediate voltage applications within the same standardized package family.

Replacement Considerations

Direct substitutes include other KBJA1508 equivalents from different manufacturers meeting identical 15 A/800 V/JB package specifications. Cross-referencing thermal resistance and forward voltage curves is necessary to ensure performance parity in existing designs.