B485B-2

Bridge Rectifier Overview

The B485B-2 is a three-phase bridge rectifier module manufactured by Sensata-Crydom. It utilizes silicon technology and features screw mount installation. The device has an average rectified current rating of 50 A and a peak reverse voltage of 400 V. The maximum forward voltage is 1.35 V at the rated current. It operates within a temperature range of -40°C to +125°C. The component belongs to the B48 series and uses QC terminals for connection.

Bridge Rectifier Feature Summary

• Provides three-phase rectification using standard silicon diode technology
• Designed for screw mount installation with QC terminal connections
• Rated for high thermal operation up to 125°C

Bridge Rectifier Applications

• Industrial power supply systems requiring three-phase conversion
• Motor drive applications utilizing three-phase AC input
• General industrial equipment needing robust rectification modules

Bridge Rectifier Procurement Notes

Verify part number authenticity as the B485B-2 is listed as obsolete in some distributor catalogs. Confirm availability through authorized Sensata-Crydom channels or verified surplus suppliers. Ensure the received unit matches the specified 50A/400V ratings and package type. Check for any specific handling requirements due to the semiconductor nature of the component.

Bridge Rectifier Selection Notes

Select this module when a three-phase rectifier with 50A capacity and 400V reverse voltage is required. Consider the B485C-2 if higher voltage ratings are needed, or the B485B-2T variant if different terminal configurations are preferred. Ensure the application environment stays within the -40°C to +125°C operating range. Verify mechanical fit for screw mount installation.

Bridge Rectifier Part Context

The B485B-2 is part of the Crydom B48 series of discrete and power modules. This series is designed for industrial applications requiring reliable three-phase rectification. The module integrates multiple diodes into a single package for efficient space utilization. It is manufactured by Sensata-Crydom, a provider of power control technologies.

Bridge Rectifier Replacement Considerations

• B485C-2
• B485B-2T

Bridge Rectifier FAQ

What is the peak reverse voltage rating of the B485B-2?

The peak reverse voltage rating is 400 V.

Is the B485B-2 available as a new production item?

Some distributors list the B485B-2 as obsolete, so availability may be limited to surplus stock.