GBU15B

Overview

The GeneSiC Semiconductor GBU15B is a single-phase glass-passivated silicon bridge rectifier designed for high-current applications. It features an average forward rectified current (IO) of 15 A and a repetitive peak reverse voltage (VRRM) of 100 V. The device supports a maximum forward voltage drop (VF) of 1.05 V at 7.5 A and withstands a peak forward surge current (IFSM) of 250 A. Operating temperatures range from -40 °C to +150 °C, with thermal resistances of 5.0 °C/W (junction-to-case) and 22 °C/W (junction-to-ambient).

Feature Summary

• Glass-passivated chip junctions ensure superior reliability and stable electrical performance.
• Epoxy resin body meets UL 94V-0 flammability ratings for enhanced safety.
• High surge overload rating provides robust protection against transient currents.
• Suitable for any mounting position on printed circuit boards.

Applications

• Printed circuit board mounted power supplies
• General-purpose AC to DC conversion circuits
• Industrial equipment requiring high temperature stability

Procurement Notes

Verify the manufacturer designation carefully, as some distributor listings may attribute this component to Navitas Semiconductor or other entities due to corporate acquisitions. Confirm the specific datasheet version matches the required electrical parameters, particularly the 100 V reverse voltage rating. Ensure compliance with RoHS and REACH standards if required by your supply chain regulations before finalizing orders.

Selection Notes

Select the GBU15B when a 15 A continuous current and 100 V blocking voltage are required in a GBU package. Consider the 1.05 V forward voltage drop for efficiency calculations. Derate the current by 20% if used with capacitive loads. Ensure adequate heatsinking or PCB copper area is available to maintain junction temperature within the specified -40 °C to +150 °C range under full load conditions.

Part Context

This component belongs to the GBU15A through GBU15G series, which shares identical mechanical dimensions and thermal characteristics but varies in reverse voltage ratings from 50 V to 400 V. The GBU15B specifically targets low-voltage, high-current applications where 100 V isolation is sufficient. It utilizes a standard GBU through-hole package compatible with automated assembly processes.

Replacement Considerations

Direct pin-compatible substitutes include other manufacturers' GBU15B variants. Verify that replacement parts meet the same 15 A current, 100 V reverse voltage, and 1.05 V forward voltage specifications. Ensure the alternative component also holds UL 94V-0 certification and glass-passivation technology for equivalent reliability.