KBJ1508 – 800V 15.0A Bridge Rectifier in KBJ Package | 800V 15A Bridge

The KBJ1508 is an 800V, 15A single-phase heavy-duty full-wave diode bridge rectifier module, designed for industrial high-margin AC-to-DC rectification, transformer secondary conversion, 800V DC bus charging, and offline 230V/415V systems requiring enhanced surge endurance. The internal symmetrical 4-junction architecture provides balanced current conduction, delivering 1.0V low-loss forward voltage drop at 100 °C rated load temperature, ensuring strong thermal and conduction efficiency. The device tolerates 240A non-repetitive surge transients without degradation, while reverse leakage remains tightly controlled at 7.5µA max, preserving bus blocking integrity even under prolonged rectifier operation. Packaged in the industry standard 4-lead KBJ epoxy block format, it ensures dependable PCB mounting, clean lead termination, and reliable thermal distribution for high-current power input front ends.

Key Specifications:

• VRRM: 800V

• IF(AV): 15.0A @ 100 °C

• IFSM: 240A surge withstand

• VF: 1.0V

• IR: 7.5µA max reverse leakage

• Trr: 10µs

• Package: KBJ (4-Lead Epoxy Block Bridge Rectifier Module)

Features:
✔ 800V high-voltage blocking margin
✔ 15A average rectified current capability
✔ 1.0V low-loss conduction at 100 °C
✔ 240A surge immunity for transformer and offline rails
✔ Symmetrical 4-junction current balancing

Applications:
SMPS DC bus front ends, 800V AC-DC industrial supplies, transformer rectifier bridges, 15A offline power modules.