MB81

Bridge Rectifier Overview

The MB81 is an 8 Amp single-phase bridge rectifier manufactured by Micro Commercial Components. It features a maximum recurrent peak reverse voltage of 100V and a maximum RMS voltage of 70V. The device operates within a junction temperature range of -55°C to +125°C. Electrical characteristics include a maximum forward voltage drop of 1.1V at 4.0A per element and a maximum DC reverse current of 10µA at 25°C. It supports a peak forward surge current of 125A for an 8.3ms half-sine wave.

Bridge Rectifier Feature Summary

• Molded plastic case with UL flammability classification rating 94V-0
• Designed for any mounting position with a dedicated mounting hole for a #6 screw
• Lead-free finish compliant with RoHS standards

Bridge Rectifier Applications

• General purpose power supply circuits
• AC to DC conversion systems
• Industrial control equipment

Bridge Rectifier Procurement Notes

Verify the specific ordering suffix when purchasing, as the 'BP' designation indicates bulk packaging containing 1.6K units per carton. Confirm that the component meets RoHS compliance requirements if necessary, noting that the standard part may require a specific suffix for lead-free status. Ensure procurement from authorized distributors to guarantee genuine parts and full traceability.

Bridge Rectifier Selection Notes

Select this component for applications requiring an 8A average forward current and a 100V blocking voltage. Consider the BR-6 package dimensions and the requirement for a #6 screw mounting hole during mechanical design. Evaluate thermal management needs based on the 8.0A rating at 50°C case temperature and the forward voltage drop characteristics.

Bridge Rectifier Part Context

The MB81 belongs to the MB805 through MB810 series of 8 Amp single-phase bridge rectifiers. This family offers varying voltage ratings from 50V to 1000V while maintaining consistent current handling capabilities. The series utilizes the BR-6 package format, providing a standardized solution for various voltage requirements in power electronics designs.

Bridge Rectifier Replacement Considerations

Compatible substitutes within the same MCC series include MB805 (50V), MB82 (200V), MB84 (400V), MB86 (600V), MB88 (800V), and MB810 (1000V). When replacing, ensure the alternative part's voltage rating meets or exceeds the circuit's peak reverse voltage requirements.