B340LB-13-F

Overview

The B340LB-13-F is a single Schottky barrier rectifier manufactured by Diodes Incorporated, designed for surface mount applications. It utilizes an SMB (DO-214AA) case and operates with a peak repetitive reverse voltage of 40 V and an average rectified output current of 3.0 A at +90°C. The device features a maximum forward voltage drop of 0.450 V at 3.0 A and supports a non-repetitive peak forward surge current of 70 A. Electrical characteristics include a leakage current of up to 2.0 mA at 40 V reverse bias and a total capacitance of 180 pF. The component functions within an operating and storage temperature range of -55°C to +150°C.

Feature Summary

• Guard ring die construction provides transient protection capabilities
• Very low forward voltage drop ensures high efficiency and reduced power loss
• Lead-free finish with matte tin plating compliant with MIL-STD-208 solderability standards
• Ideally suited for automated assembly processes

Applications

• Low voltage, high frequency inverters
• Free wheeling diode circuits
• Polarity protection systems

Procurement Notes

Verify the specific package type matches the required footprint, as the 'B' suffix indicates the SMB (DO-214AA) configuration rather than SMA. Confirm compliance requirements such as RoHS and Halogen-free status against project specifications. Ensure thermal management aligns with the specified junction-to-terminal thermal resistance and derating curves provided in the datasheet for reliable operation under load.

Selection Notes

Select this component when a 40V rating and 3A continuous current are sufficient for the circuit design. The SMB package offers a larger physical profile compared to SMA variants, which may influence board space allocation. Consider the 0.450 V forward voltage drop for efficiency calculations. Verify that the 70 A surge rating meets the transient requirements of the application environment.

Part Context

This part belongs to the B340LA/B series of 3.0A low VF Schottky barrier rectifiers from Diodes Incorporated. The series differentiates between SMA and SMB packages, with the LB variant specifically utilizing the SMB form factor. These devices are engineered for general-purpose rectification in consumer electronics and industrial equipment where low power loss is critical.

Replacement Considerations

The B340LA-13-F serves as a direct functional substitute but utilizes an SMA package instead of SMB. Cross-package replacements require verification of PCB footprint compatibility and mechanical clearance constraints before implementation.