RB531SM-40FHT2R

Single Diodes Overview

The RB531SM-40FHT2R is a Schottky barrier diode manufactured by ROHM Semiconductor, designed for small current rectification applications. It features a single configuration within an EMD2 (SOD-523) surface-mount package. The device supports an average rectified forward current of 0.2 A and withstands a repetitive reverse voltage of 40 V. Key electrical parameters include a maximum forward voltage of 0.35 V at 10 mA and a maximum reverse current of 0.01 mA at 10 V. It operates with a junction temperature up to 125°C and complies with the AEC-Q101 automotive grade standard.

Single Diodes Feature Summary

• Low forward voltage drop for improved efficiency in small current rectification
• Automotive-grade reliability compliant with AEC-Q101 standards
• Compact SOD-523 (EMD2) surface-mount package design

Single Diodes Applications

• Small current rectification circuits
• Automotive electronic systems requiring AEC-Q101 compliance
• General-purpose low-voltage DC-DC conversion stages

Single Diodes Procurement Notes

Verify the specific suffix 'T2R' against official ROHM documentation to confirm taping specifications and reel dimensions. Ensure the part number matches the exact 40V rating variant, as similar models may exist with different voltage or current ratings. Cross-reference the EMD2 package code with JEITA SC-79 standards for accurate footprint verification during PCB layout.

Single Diodes Selection Notes

Select this component when a compact Schottky diode with automotive qualification is required for low-current applications. The 40V reverse voltage rating provides sufficient headroom for 12V automotive systems. Compare the 0.2A average current limit against circuit requirements to ensure adequate margin. Consider the low forward voltage characteristic for minimizing power loss in sensitive signal paths.

Single Diodes Part Context

This component belongs to the RB531 series of Schottky barrier diodes from ROHM Semiconductor. The series is characterized by its ultra-low forward voltage and high reliability, specifically tailored for automotive and industrial applications. The RB531SM-40FHT2R represents the 40V voltage variant within this lineup, offering a balance between blocking capability and conduction efficiency in a miniature form factor.

Single Diodes Replacement Considerations

Consult official ROHM substitution guides for verified alternatives. Generic replacements must match the 40V reverse voltage, 0.2A current rating, and SOD-523 package dimensions. Verify that any substitute also meets AEC-Q101 requirements if automotive usage is intended.