MB4S

Bridge Rectifier Overview

The MB4S is a single-phase bridge rectifier manufactured by onsemi, designed for surface-mount applications. It features a peak repetitive reverse voltage of 400 V and an average forward rectified current of 500 mA. The device utilizes standard silicon technology and operates within a junction temperature range of -50°C to 150°C. It is housed in a TO-269AA (MINIDIL SLIM) package with four leads. Key electrical characteristics include a maximum forward voltage of 1 V at 400 mA and a reverse leakage current of 5 µA at 400 V. The component complies with RoHS3 standards and has a moisture sensitivity level of 1.

Bridge Rectifier Feature Summary

• Single-phase bridge rectification configuration
• Surface-mount TO-269AA MINIDIL SLIM packaging
• High thermal stability up to 150°C junction temperature

Bridge Rectifier Applications

• General-purpose AC-to-DC conversion circuits
• Power supply input stages
• Bridge rectifier implementations in compact electronic devices

Bridge Rectifier Procurement Notes

Verify the manufacturer designation carefully, as the MB4S part number is widely used by multiple semiconductor vendors including Diotec Semiconductor and Good-Ark Semiconductor. Confirm that the specific batch corresponds to onsemi production if that source is required for design specifications. Check datasheet revisions to ensure parameter consistency across different manufacturing origins.

Bridge Rectifier Selection Notes

Select this component when a low-current, high-voltage bridge rectifier is needed for space-constrained designs. The TO-269AA package offers a small footprint suitable for surface-mount technology lines. Ensure the circuit's peak inverse voltage does not exceed 400 V and the continuous load current remains below 500 mA. Verify thermal management requirements given the 150°C maximum junction temperature rating.

Bridge Rectifier Part Context

The MB4S belongs to the family of single-phase bridge rectifiers commonly used in low-power electronics. While the model number is shared across various manufacturers, onsemi's version adheres to specific performance metrics defined in their official documentation. This component serves as a fundamental building block for converting alternating current to direct current in consumer and industrial applications requiring moderate voltage ratings.

Bridge Rectifier Replacement Considerations

Direct substitutes include the MB4S from Diotec Semiconductor and Good-Ark Semiconductor, which are parameter-equivalent. When replacing, verify that the alternative vendor's datasheet confirms identical pinout, package dimensions (TO-269AA), and electrical limits (400V/0.5A). Cross-reference thermal resistance values if heat dissipation is critical.