KBPC3508W

Overview

The KBPC3508W is a glass passivated single-phase bridge rectifier from the Good-Ark Semiconductor KBPC35 series. It features an average rectified output current of 35 A at a case temperature of 55°C and a repetitive peak reverse voltage of 800 V. The device exhibits a maximum instantaneous forward voltage drop of 1.1 V per diode at 17.5 A and supports a surge non-repetitive forward current of 400 A. Electrical isolation between terminals and the case is rated at 1800 V AC for one minute. The component utilizes tin-plated wire leads, indicated by the 'W' suffix, and operates within a junction temperature range of -55°C to +150°C.

Feature Summary

• Glass passivation provides mechanical strength and protection against external chemical damage.
• Electrically isolated base ensures safety with high dielectric strength between terminals and case.
• Low thermal resistance design facilitates efficient heat dissipation when mounted on a heatsink.

Applications

• AC-DC power supply circuits requiring high current capacity
• Battery charging systems
• General purpose rectification in industrial equipment

Procurement Notes

Verify that the ordering suffix 'W' corresponds to the wire lead configuration specified in the official datasheet. Confirm the manufacturer is Good-Ark Semiconductor and the part number matches KBPC3508W exactly. Ensure compliance with RoHS standards if required by the application specifications before finalizing procurement orders.

Selection Notes

Select this component when an 800 V blocking voltage and 35 A continuous current are required. Ensure the PCB layout accommodates the specific terminal spacing defined in the KBPC-W package outline dimensions. Verify that the operating case temperature remains below 55°C for full current rating or apply appropriate derating curves for higher temperatures.

Part Context

This component belongs to the KBPC35 series of glass passivated bridge rectifiers manufactured by Good-Ark Semiconductor. The series covers voltage ratings from 50 V to 1000 V while maintaining a consistent 35 A current capability. The KBPC3508W specifically denotes the 800 V variant within this family, sharing common thermal and mechanical characteristics with other models in the series.

Replacement Considerations

Compatible substitutes include the Diotec KBPC3508WP and HY Electronic GBPC3508. Verify that alternative parts match the 800 V reverse voltage, 35 A current rating, and compatible mounting style before implementation.

FAQ

What does the 'W' suffix indicate in the model name KBPC3508W?

The 'W' suffix indicates that the component is equipped with tin-plated wire leads instead of standard faston terminals.

What is the maximum surge current capability of the KBPC3508W?

The device supports a non-repetitive peak forward surge current of 400 A under half-sine wave conditions at 25°C ambient temperature.

How is electrical isolation achieved in this bridge rectifier?

The device features an electrically isolated base with a dielectric strength of 1800 V AC between the terminals and the case for one minute.