B125FD

Bridge Rectifier Overview

The B125FD is a single-phase fast recovery bridge rectifier manufactured by Diotec Semiconductor. It features an average forward current (IFAV) of 1 A and a peak repetitive reverse voltage (VRRM) of 125 V. The device exhibits a maximum forward voltage drop (VF) of 1.3 V at 1 A and a typical reverse recovery time (trr) of 300 ns. Electrical characteristics include a leakage current (IR) below 5 µA at rated voltage and a junction capacitance of 25 pF. The component operates within a temperature range of -50°C to +150°C and utilizes a surface-mount SO-DIL-4 package.

Bridge Rectifier Feature Summary

• Fast recovery technology with a typical reverse recovery time of 300 ns for efficient switching applications
• High thermal stability supporting operation up to a junction temperature of +150°C
• Low forward voltage drop of 1.3 V to minimize conduction losses
• Compact surface-mount packaging designed for automated assembly processes

Bridge Rectifier Applications

• High-frequency AC/DC power supply circuits
• Inverter bridge configurations in motor drives
• Polarity protection stages in electronic control units
• Output rectification in switching mode power supplies

Bridge Rectifier Procurement Notes

Verify the specific ordering code against the manufacturer's official documentation before procurement, as suffixes may indicate variations in packaging or tape-and-reel specifications. Confirm RoHS compliance status directly through the supplier to ensure adherence to environmental regulations. Cross-reference the datasheet revision date to guarantee access to the most recent electrical parameters and mechanical drawings during the sourcing process.

Bridge Rectifier Selection Notes

Select the B125FD when circuit designs require fast recovery characteristics combined with a 1 A current rating. Ensure the peak inverse voltage requirement does not exceed 125 V while accounting for transient spikes. Evaluate the thermal resistance of 60 K/W against the expected ambient temperature and copper pad area to maintain safe operating junction temperatures under continuous load conditions.

Bridge Rectifier Part Context

This component belongs to the BxxFD series of fast recovery bridge rectifiers from Diotec Semiconductor. The series provides standardized electrical ratings ranging from 80 V to 380 V reverse voltage while maintaining consistent 1 A forward current capabilities. All variants share identical physical dimensions and pinout configurations, facilitating direct interchangeability within design constraints.

Bridge Rectifier Replacement Considerations

Direct substitutes must match the 1 A current rating, 125 V reverse voltage, and fast recovery specifications. Verify that alternative components offer comparable reverse recovery times and forward voltage drops to prevent thermal issues.