MMB1G-HF

Bridge Rectifier Overview

The MMB1G-HF is a single-phase silicon bridge rectifier manufactured by Comchip Technology. It features a maximum average forward current of 0.5 A and a peak repetitive reverse voltage rating of 400 V. The device utilizes glass-passivated chip junctions within a molded plastic body over passivated junctions. Key electrical parameters include a maximum instantaneous forward voltage of 1.1 V at 0.8 A, a maximum non-repetitive peak surge current of 30 A, and a typical thermal resistance per leg of 200 °C/W. Operating temperatures range from -55°C to +150°C.

Bridge Rectifier Feature Summary

• Glass-passivated chip junctions for reliability
• High surge overload rating capability
• Space-saving surface-mount package design

Bridge Rectifier Applications

• Printed circuit board rectification
• General-purpose power supply circuits
• Low-current DC output stages

Bridge Rectifier Procurement Notes

Verify the specific part number against official manufacturer documentation to confirm compliance with RoHS and Halogen-free standards. Ensure that the ordering suffix matches the required voltage and current ratings for the intended application. Cross-reference datasheet specifications with distributor catalogs to validate technical parameters before procurement.

Bridge Rectifier Selection Notes

Select this component based on its 0.5 A current capacity and 400 V reverse voltage rating. Consider the thermal resistance characteristics when designing heat dissipation strategies. Verify compatibility with standard surface-mount assembly processes and ensure the operating temperature range meets environmental requirements.

Bridge Rectifier Part Context

This component belongs to the MMB series of silicon bridge rectifiers produced by Comchip Technology. The series offers various voltage ratings ranging from 100 V to 1000 V while maintaining a consistent 0.5 A forward current capability. The MMB1G-HF specifically addresses applications requiring compact packaging and reliable performance in low-power rectification scenarios.

Bridge Rectifier Replacement Considerations

Compatible substitutes include other MMB series variants such as MMB2G-HF or MMB4G-HF for different voltage requirements. Alternative manufacturers may offer equivalent SMD bridge rectifiers with matching 0.5 A and 400 V specifications.