GBI25A

Bridge Rectifier Overview

The Diotec Semiconductor GBI25A is a single-phase diode bridge rectifier designed for commercial and industrial applications. It features an average forward current (IFAV) of 25 A when mounted on a heatsink at a case temperature of 80°C, or 4.2 A free-standing at 50°C ambient. The device supports a repetitive peak reverse voltage (VRRM) of 50 V. Key electrical characteristics include a typical forward voltage of 0.92 V at 12.5 A, a maximum leakage current of less than 5 µA at 25°C, and a peak forward surge current of 300 A at 50 Hz. The unit operates within a junction temperature range of -50°C to +150°C.

Bridge Rectifier Feature Summary

• Four diodes integrated in a bridge configuration
• UL recognized component with file number E175067
• Suitable for free-standing or heatsink assembly
• Compliant with RoHS directive exemption 7a-I

Bridge Rectifier Applications

• 50/60 Hz mains rectification
• Power supplies
• Commercial grade equipment
• Industrial grade equipment

Bridge Rectifier Procurement Notes

Verify the specific part marking against the datasheet to confirm the 50 V rating. Ensure the ordering suffix matches the required packaging, as standard units are packed in cardboard trays while tubes require the -T suffix. Confirm compliance requirements such as REACH and conflict minerals status before finalizing procurement specifications.

Bridge Rectifier Selection Notes

Select the GBI25A for circuits requiring a 50 V peak reverse voltage capability. Consider thermal management carefully; the device delivers 25 A only with forced cooling at an 80°C case temperature, whereas free-standing operation limits current to 4.2 A. Verify that the protective resistance and load capacitor values align with the specified time constant to prevent exceeding the surge current rating during startup.

Bridge Rectifier Part Context

The GBI25A belongs to the GBI series of single-phase bridge rectifiers from Diotec Semiconductor. This family includes variants with higher voltage ratings, such as the GBI25B through GBI25M. All models share similar mechanical dimensions and thermal characteristics, differing primarily in their repetitive peak reverse voltage capabilities.

Bridge Rectifier Replacement Considerations

Cross-reference with other GBI series parts like GBI25B if a higher voltage rating is acceptable. Verify pinout compatibility and thermal resistance values when substituting with bridge rectifiers from other manufacturers.