MD1890A-BM2MM

Overview

The Littelfuse MD1890A-BM2MM is a general-purpose silicon diode module designed for high-voltage and high-current applications. It features a maximum repetitive peak reverse voltage of 1800V and an average forward rectifier current rating of 90A. The component utilizes an A-3 module package configuration, which facilitates chassis mounting for efficient thermal management in industrial environments. This discrete semiconductor module provides robust circuit protection and power conversion capabilities within demanding electrical systems.

Feature Summary

• High voltage blocking capability up to 1800V
• High current handling with 90A average forward rating
• Chassis mount design for secure installation

Applications

• Industrial power supply units
• Motor drive rectification circuits
• Welding equipment power stages

Procurement Notes

Verify the specific manufacturing status before procurement as this product may be discontinued or subject to obsolescence notices. Confirm RoHS compliance and lead-free status with the authorized distributor. Ensure the A-3 module footprint matches the target PCB or chassis layout requirements. Request official datasheets to validate electrical parameters against system design specifications.

Selection Notes

Select this module when designing systems requiring high voltage isolation and significant current capacity. The A-3 package offers a balance between power density and mechanical stability. Consider thermal resistance characteristics for heatsink sizing. Evaluate the reverse leakage current and recovery time if switching frequency is a critical design parameter for the application.

Part Context

This component belongs to Littelfuse’s discrete semiconductor module portfolio, specifically engineered for power electronics. It serves as a fundamental building block for rectification and freewheeling functions in heavy-duty equipment. The series is characterized by rugged silicon construction suitable for harsh operating conditions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Littelfuse official resources for cross-reference data. Verify pin compatibility and thermal performance if considering alternative manufacturers.