B481C-2

Overview

The Sensata-Crydom B481C-2 is a general-purpose silicon rectifier diode module designed for high-power applications. It features a single common cathode configuration with two discrete diodes housed in a B48 module package. The device supports a maximum DC reverse voltage of 600V and an average rectified current of 35A per diode. Forward voltage drop is specified at 1.25V when conducting 35A. The component operates within a junction temperature range of -40°C to 125°C and utilizes standard recovery characteristics exceeding 500ns. Mounting is achieved via base installation.

Feature Summary

• Single common cathode configuration integrating two standard recovery silicon diodes
• Robust B48 module housing designed for secure base mounting
• Capable of handling 35A average rectified current per diode element

Applications

• Industrial power supply units requiring high-current rectification
• Motor drive systems and variable frequency drives
• Welding equipment power stages

Procurement Notes

Verify the specific manufacturer source, as the B481C-2 designation appears across multiple entities including Crydom and Sensata. Confirm that the datasheet matches the exact electrical parameters, particularly the 600V rating and 35A current capacity, before integration. Ensure the package type corresponds to the required mechanical footprint for your assembly process.

Selection Notes

Select this component when a dual-diode common cathode arrangement is required for bridge or half-wave configurations. The B48 package offers a balance of thermal performance and mechanical stability for board-mounted or chassis-mounted solutions. Consider the 1.25V forward voltage drop for efficiency calculations in low-voltage, high-current output stages.

Part Context

This part belongs to the broader family of discrete semiconductor modules from Sensata-Crydom. It shares the B48 mechanical form factor with other variants like the B485C-2, though electrical ratings may differ. These modules are engineered for reliability in demanding industrial environments where robust packaging and standardized pinouts facilitate system design.

Replacement Considerations

Cross-reference with B481C-2T for identical specifications in alternative packaging or sourcing channels. Verify compatibility with B485C-2 if higher surge current capability is needed, noting potential differences in forward voltage characteristics.