DBD250G

Bridge Rectifier Overview

The DBD250G is a single-phase bridge rectifier manufactured by onsemi, originally developed by SANYO Semiconductor. It utilizes diffused junction silicon technology and features a plastic molded structure with glass passivation for high reliability. The component supports a peak reverse voltage of 600V and delivers an average output current of 25.0A when mounted on a 300x300x3.0mm³ copper fin at 40°C ambient temperature. Key electrical parameters include a maximum forward voltage of 1.05V at 12.5A, a surge forward current capability of 400A, and a thermal resistance from junction to case of 1.5°C/W.

Bridge Rectifier Feature Summary

• Glass passivation construction ensures high reliability and durability under operating conditions.
• Diffused junction silicon design provides stable performance characteristics for general electronics applications.

Bridge Rectifier Applications

• General purpose power supply circuits
• Industrial equipment power conversion
• Home appliance power management

Bridge Rectifier Procurement Notes

Verify the manufacturer origin carefully as the part was originally produced by SANYO Semiconductor before acquisition by onsemi. Confirm that the specific ordering suffix matches the required voltage rating, as the DBD250 series includes variants with different peak reverse voltage specifications. Ensure the datasheet version aligns with the production batch requirements for your specific application needs.

Bridge Rectifier Selection Notes

Select this component based on the requirement for a 25A continuous current capacity in a single-phase configuration. Consider the thermal management strategy, as the rated current depends heavily on the use of a specified copper heatsink. Evaluate the 600V reverse voltage rating against the circuit's peak inverse voltage demands to ensure adequate safety margins during operation.

Bridge Rectifier Part Context

This device belongs to the DBD250 series of single-phase bridge rectifiers. The 'G' suffix typically denotes the 600V peak reverse voltage variant within the family, distinguishing it from other ratings such as the 200V version found in the same series. These components are designed for robust performance in standard industrial and consumer electronic environments.

Bridge Rectifier Replacement Considerations

Compatible substitutes include the DBF250G and DBF250_10, which share similar 25A single-phase bridge rectifier capabilities. Verify pinout compatibility and thermal resistance values when transitioning between these specific part numbers to ensure proper integration into existing designs.

Bridge Rectifier FAQ

What is the maximum surge forward current for the DBD250G?

The maximum surge forward current (IFSM) is 400 A for a 50 Hz sine wave lasting one cycle.

How does the average output current rating change with cooling?

The average output current is rated at 6.0 A at Ta=40°C without a heatsink, but increases to 25.0 A when mounted on a 300x300x3.0mm³ copper fin.

What is the typical forward voltage drop at rated current?

The typical forward voltage (VF) is 1.05 V when measured at a forward current (IF) of 12.5 A per constituent element.