BU1506-M3/51

Bridge Rectifier Overview

The BU1506-M3/51 is a single-phase bridge rectifier from Vishay's Enhanced isoCink+ series, rated for a maximum repetitive peak reverse voltage of 600 V and an average forward current of 15 A. It utilizes glass passivated chip junctions within a thin single in-line package (Case BU). The device features a typical thermal resistance of 2.5 °C/W between the junction and case, with a maximum operating junction temperature of 150 °C. Electrical characteristics include a maximum instantaneous forward voltage of 1.05 V at 7.5 A and a maximum reverse current of 5 μA at 25 °C.

Bridge Rectifier Feature Summary

• Glass passivated chip junctions provide superior reliability and stability under varying electrical conditions.
• Enhanced isoCink+ technology ensures high thermal conductivity for efficient heat dissipation.
• Thin single in-line package design facilitates compact circuit board layouts.

Bridge Rectifier Applications

• General purpose AC/DC bridge full wave rectification
• Switching power supply circuits
• Home appliances and white-goods applications

Bridge Rectifier Procurement Notes

Verify that the M3 suffix indicates halogen-free, RoHS-compliant commercial grade material. Confirm the /51 packaging code corresponds to paper tray delivery mode with a base quantity of 250 units. Ensure compliance with JESD 201 class 1A whisker test requirements if applicable to the specific project standards.

Bridge Rectifier Selection Notes

Select this component when a 600 V rating is required for full-wave rectification. Consider the 15 A average current capability and the 2.5 °C/W junction-to-case thermal resistance for heatsinking calculations. Verify that the thin single in-line package dimensions fit the available PCB space constraints.

Bridge Rectifier Part Context

This part belongs to the BU1506, BU1508, and BU1510 family of Enhanced isoCink+ bridge rectifiers. All variants share identical mechanical and thermal characteristics, differing only in their maximum repetitive peak reverse voltage ratings of 600 V, 800 V, and 1000 V respectively.

Bridge Rectifier Replacement Considerations

Direct replacements must match the 600 V reverse voltage, 15 A current rating, and Case BU footprint. Verify that alternative components meet the same UL recognition file E312394 safety standards and thermal performance specifications.

Bridge Rectifier FAQ

What is the maximum operating junction temperature?

The maximum operating junction and storage temperature range is -55 to +150 °C.

How is polarity indicated on the device?

Polarity is marked directly on the body of the case, with the positive lead identified by a beveled corner.

What is the non-repetitive peak forward surge current rating?

The device supports a non-repetitive peak forward surge current of 200 A for an 8.3 ms single sine-wave pulse at TJ = 25 °C.