BR3508

Bridge Rectifier Overview

The EIC Semiconductor BR3508 is a single-phase silicon bridge rectifier designed for high-current applications. It features a maximum average forward current of 35 A at a case temperature of 55°C and supports a maximum recurrent peak reverse voltage of 800 V. The device exhibits a maximum forward voltage drop of 1.1 V at 17.5 A and handles a peak forward surge current of 400 A. Electrical characteristics include a maximum DC reverse current of 10 μA at 25°C and 200 μA at 100°C. Thermal performance is defined by a junction-to-case resistance of 1.5 °C/W and a junction-to-ambient resistance of 10 °C. The component operates within a junction temperature range of -40 to +150°C.

Bridge Rectifier Feature Summary

• High current capability with integrated metal heatsink for efficient thermal management
• Low reverse leakage current and low forward voltage drop for improved efficiency
• Robust construction with UL94V-0 flame retardant epoxy encapsulation
• Rated isolation voltage of 2000 V for enhanced safety in power circuits

Bridge Rectifier Applications

• General-purpose AC to DC power supply rectification
• Industrial equipment requiring reliable single-phase rectification
• Automotive electronics systems

Bridge Rectifier Procurement Notes

Verify the specific manufacturer source, as the BR3508 designation appears across multiple semiconductor vendors including EIC, New Jersey Semi-Conductor, and Formosa. Confirm that the datasheet specifications match your design requirements, particularly regarding terminal plating and mounting dimensions. Ensure compliance with RoHS standards if required by your assembly process before finalizing procurement.

Bridge Rectifier Selection Notes

Select the BR3508 when an 800 V blocking voltage is necessary for the application's peak inverse voltage. The 35 A continuous current rating suits moderate to high-power designs. Consider the bolt-down mounting style and Faston terminals during PCB layout. Derate the forward current by 20% if the load is capacitive to ensure safe operation within the thermal limits.

Bridge Rectifier Part Context

The BR3508 belongs to the BR3500 series of silicon bridge rectifiers from EIC Semiconductor. This family covers reverse voltages from 50 V to 1200 V while maintaining a consistent 35 A current rating. The series shares identical mechanical housing, terminal configurations, and thermal characteristics, allowing for straightforward voltage-based selection without changing the physical footprint or mounting strategy.

Bridge Rectifier Replacement Considerations

Compatible substitutes include the NJB3508 from New Jersey Semi-Conductor and the BR3508W from Formosa Electronics. These parts share the same 35 A/800 V ratings and mechanical form factor. Verify terminal spacing and pinout compatibility before substitution.