DBF150G

Bridge Rectifier Overview

The DBF150G is a silicon diffused junction single-phase bridge rectifier manufactured by SANYO Electric Co., Ltd. It provides an average rectified current of 15 A at a case temperature of 100°C and offers peak reverse voltage ratings of 200 V (DBF150C) or 600 V (DBF150G). The device features a maximum forward voltage of 1.1 V at 7.5 A and supports a surge forward current of 200 A. Thermal resistance from junction to ambient is 22 °C/W without a heatsink, while junction-to-case resistance is 1.5 °C/W with a heatsink. The component operates within a junction temperature range up to 150°C.

Bridge Rectifier Feature Summary

• Glass passivation for high reliability
• Plastic molded structure

Bridge Rectifier Applications

• General-purpose power supply circuits
• AC-DC conversion systems
• Industrial rectification applications

Bridge Rectifier Procurement Notes

Verify the manufacturer origin carefully, as the datasheet identifies SANYO Electric Co., Ltd. rather than onsemi. Confirm the specific voltage rating suffix required for your design, distinguishing between the 200 V DBF150C and 600 V DBF150G variants. Ensure thermal management aligns with the specified junction-to-case resistance values during integration.

Bridge Rectifier Selection Notes

Select the DBF150G variant specifically when a 600 V peak reverse voltage rating is necessary for the circuit design. Evaluate thermal requirements based on whether a heatsink is utilized, as the average rectified current drops significantly from 15 A to 3.2 A in free-air conditions. Verify that the 1.1 V forward voltage drop meets efficiency targets at the expected operating current levels.

Bridge Rectifier Part Context

This component belongs to the DBF series of single-phase bridge rectifiers designed for medium-power applications. Manufactured by SANYO Electric Co., Ltd., it utilizes silicon diffused junction technology housed in a plastic molded package. The series is engineered for robust performance in standard industrial and commercial power conversion environments.

Bridge Rectifier Replacement Considerations

Direct substitutes must match the 15 A current rating, 600 V reverse voltage, and TO-220AB-like bridge package dimensions. Verify equivalent thermal resistance characteristics and forward voltage specifications to ensure compatibility with existing heat dissipation designs.

Bridge Rectifier FAQ

What is the difference between the DBF150C and DBF150G?

The primary difference is the peak reverse voltage rating. The DBF150C is rated for 200 V, while the DBF150G is rated for 600 V. Both share identical current and thermal specifications.

How does the average rectified current change without a heatsink?

Without a heatsink at an ambient temperature of 25°C, the average rectified current capability decreases to 3.2 A. With a heatsink maintaining a case temperature of 100°C, it supports 15 A.