BU1206-M3/45

Bridge Rectifier Overview

The BU1206-M3/45 is a single-phase bridge rectifier from Vishay General Semiconductor, utilizing enhanced isoCink+ technology. It features a maximum repetitive peak reverse voltage of 600 V and an average rectified forward current rating of 12 A at a case temperature of 85 °C. The device has a non-repetitive peak forward surge current capability of 150 A. Electrical characteristics include a maximum instantaneous forward voltage of 1.05 V at 6.0 A and 25 °C, with a typical junction capacitance of 50 pF. It operates within a junction temperature range of -55 to +150 °C and utilizes a thin single in-line (BU) package.

Bridge Rectifier Feature Summary

• Glass passivated chip junction for superior reliability
• Enhanced thermal conductivity via isoCink+ technology
• UL recognition file number E312394 for safety compliance

Bridge Rectifier Applications

• AC/DC bridge full wave rectification for switching power supplies
• Home appliances
• White-goods applications

Bridge Rectifier Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging and material compliance. The M3 suffix indicates halogen-free and RoHS-compliant commercial grade materials. Confirm the base quantity and delivery mode required for the project, as standard tubes contain 20 units while paper trays may hold 250 units. Ensure the component meets JESD 201 class 1A whisker test requirements if applicable to the design specifications.

Bridge Rectifier Selection Notes

Select this component based on the 600 V reverse voltage requirement and 12 A continuous current capacity. Consider the thermal resistance values when designing heatsinking solutions, noting that performance varies significantly between free air and mounted conditions. Verify that the application environment stays within the specified operating junction temperature range of -55 to +150 °C. Ensure the mounting torque does not exceed the recommended limits to prevent mechanical damage.

Bridge Rectifier Part Context

This part belongs to the BU1206, BU1208, and BU1210 series of enhanced isoCink+ bridge rectifiers. These devices share similar mechanical dimensions and thermal characteristics but differ in their maximum repetitive peak reverse voltage ratings. The series is designed for general-purpose rectification in compact electronic designs requiring high current handling capabilities.

Bridge Rectifier Replacement Considerations

Direct substitutes must match the 600 V rating, 12 A current capacity, and BU package style. Verify that any replacement maintains the same thermal resistance and forward voltage characteristics to ensure circuit compatibility without redesigning the cooling system.

Bridge Rectifier FAQ

What is the maximum instantaneous forward voltage per diode?

The maximum instantaneous forward voltage is 1.05 V at an average forward current of 6.0 A and a junction temperature of 25 °C.

Is the device suitable for floating ground applications?

Yes, but Vishay recommends using an insulator to meet safety requirements if the device is mounted in a floating ground application.

What is the UL recognition file number for this component?

The UL recognition file number is E312394.