B40FD

Bridge Rectifier Overview

The B40FD is a fast recovery bridge rectifier manufactured by Diotec Semiconductor, rated for a repetitive peak reverse voltage of 400 V and an average forward current of 1 A. It features a typical reverse recovery time of 300 ns and a maximum forward voltage drop of 1.3 V at 25°C. The device operates within a junction temperature range of -50°C to +150°C and includes a recommended protective resistance of 2.0 Ω with an admissible load capacitor of 0.005 F.

Bridge Rectifier Feature Summary

• Fast recovery characteristics suitable for high-frequency switching applications
• Robust surge current handling capability up to 40 A under standard conditions
• Low leakage current ensuring efficient operation at elevated temperatures

Bridge Rectifier Applications

• High-frequency power supply circuits
• DC-AC inverter systems
• Industrial motor control units

Bridge Rectifier Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with Diotec Semiconductor before finalizing procurement orders. Confirm that the component meets all required environmental standards for the intended deployment environment. Ensure proper storage conditions are maintained to prevent moisture damage prior to assembly.

Bridge Rectifier Selection Notes

Select the B40FD when a compact bridge rectifier with fast recovery properties is required for 400 V applications. Evaluate thermal management requirements based on the specified thermal resistance values. Ensure the circuit design accommodates the recommended protective resistance to prevent exceeding the peak forward surge current limits during transient events.

Bridge Rectifier Part Context

The B40FD belongs to the B40FD through B380FD series of fast recovery bridge rectifiers from Diotec Semiconductor. This family shares similar physical dimensions and electrical characteristics, differentiated primarily by their peak reverse voltage ratings ranging from 40 V to 800 V. The series is designed for general-purpose industrial and commercial electronics requiring reliable AC-to-DC conversion.

Bridge Rectifier Replacement Considerations

Direct substitutes include other 400 V, 1 A fast recovery bridge rectifiers from different manufacturers. Verify pinout compatibility and thermal performance metrics before substitution. Cross-reference specifications such as reverse recovery time and forward voltage drop to ensure equivalent circuit behavior.