DB157G

Bridge Rectifier Overview

The DB157G is a single-phase glass passivated silicon bridge rectifier manufactured by GeneSiC Semiconductor. It provides a maximum average forward rectified current (IO) of 1.5 A and supports repetitive peak reverse voltages (VRRM) ranging from 600 V to 1000 V, with the DB157G variant rated at 1000 V. The device features a peak forward surge current (IFSM) capability of 50 A under half-sine wave conditions. Electrical characteristics include a maximum instantaneous forward voltage drop of 1.1 V at 1.5 A and a typical junction capacitance of 14 pF. The component operates within a temperature range of -55 °C to +150 °C and utilizes a molded plastic DB package.

Bridge Rectifier Feature Summary

• Glass passivated junction construction for reliable performance
• High surge current capability suitable for transient loads
• Small size design facilitating simple printed circuit board installation

Bridge Rectifier Applications

• Printed circuit board mounting in power supply circuits
• AC to DC conversion in general-purpose rectification applications
• Power supplies requiring high surge current tolerance

Bridge Rectifier Procurement Notes

Verify the specific part number suffix against the manufacturer's official documentation to confirm the exact voltage rating and package configuration. Ensure that the procurement source provides valid RoHS compliance data if required by the application standards. Cross-reference the datasheet revision date to ensure the electrical parameters match the intended design specifications.

Bridge Rectifier Selection Notes

Select the DB157G when a 1000 V reverse voltage rating is required for single-phase bridge rectification. Consider the 1.5 A continuous current limit and the 50 A surge capability during load analysis. Verify that the operating environment stays within the specified -55 °C to +150 °C junction temperature range and that PCB layout accommodates the DB package dimensions.

Bridge Rectifier Part Context

The DB157G belongs to the DB155G through DB157G series of single-phase silicon bridge rectifiers. This family shares identical mechanical and thermal characteristics, differing primarily in their repetitive peak reverse voltage ratings. The series is designed for surface mount or through-hole integration on printed circuit boards using a molded plastic case.

Bridge Rectifier Replacement Considerations

Substitutes must match the 1.5 A current rating, 1000 V reverse voltage, and DB package footprint. Verify that alternative components offer comparable surge current capabilities and thermal resistance values to maintain system reliability.