RB205T-40

Overview

The RB205T-40 is a silicon Schottky barrier diode manufactured by Rohm Semiconductor, designed for high-reliability applications. It features a common cathode configuration within a TO-220FN (3-pin) leaded package. The device supports an average rectified forward current of 15A and withstands a reverse voltage of 40V with a maximum repetitive peak reverse voltage of 45V. Key electrical characteristics include a maximum forward voltage of 0.55V at 7.5A and a low maximum reverse current of 0.3mA at 40V. It operates with a junction temperature up to 150°C and complies with the AEC-Q101 automotive grade standard.

Feature Summary

• Common cathode dual configuration in a TO-220 package
• Low reverse leakage current for enhanced reliability
• Automotive-grade qualification under AEC-Q101 standards

Applications

• Automotive power supply circuits
• DC/DC converter freewheeling applications
• General purpose rectification in industrial equipment

Procurement Notes

Verify the specific ordering suffix (e.g., C9 or NZ) as these denote distinct packaging variants such as tube quantities. Confirm that the component status remains appropriate for existing designs, as new design recommendations may vary. Ensure the selected variant matches the required leaded mounting style and package dimensions for the target PCB layout.

Selection Notes

Select this component for applications requiring robust thermal performance and low forward voltage drop in medium-current scenarios. The TO-220FN package facilitates effective heat dissipation for continuous 15A operation. Consider the AEC-Q101 certification if the end product requires automotive reliability standards. Evaluate the low reverse current specification for efficiency-critical designs where leakage losses must be minimized.

Part Context

This part belongs to the RB205T series of Schottky barrier diodes from Rohm Semiconductor. The series is characterized by its common cathode dual structure, which allows for efficient use in bridge rectifier configurations or synchronous rectification setups. The TO-220FN package provides a balance between current handling capacity and mechanical stability for through-hole mounting.

Replacement Considerations

The RB205T-40NZ is documented as a similar specification alternative within the same series. Verify pin compatibility and thermal resistance values when substituting. Ensure the replacement variant maintains the required AEC-Q101 compliance if automotive qualification is mandatory.