V40DM45C-M3/I

Diode Arrays Overview

The V40DM45C-M3/I is a dual low-voltage Trench MOS Barrier Schottky (TMBS) rectifier manufactured by Vishay General Semiconductor. It features an SMPD (TO-263AC) package with a common cathode configuration. The device supports a maximum repetitive peak reverse voltage of 45 V and a total maximum average forward rectified current of 40 A, distributed as 20 A per diode. Peak forward surge current capability is rated at 240 A. Operating junction temperature ranges from -40 °C to +175 °C. At 25 °C and 20 A, the typical instantaneous forward voltage is 0.56 V, while at 125 °C it drops to 0.48 V.

Diode Arrays Feature Summary

• Utilizes Trench MOS Schottky technology for high efficiency operation and low power losses.
• Features a very low profile design with a typical height of 1.7 mm, suitable for automated placement.
• Complies with MSL level 1 standards and withstands a maximum peak reflow temperature of 260 °C.

Diode Arrays Applications

• High frequency DC/DC converters
• Switching power supplies
• Freewheeling diodes
• OR-ing diode circuits
• Reverse battery protection

Diode Arrays Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the ordering suffix matches the required specifications, specifically ensuring the presence of the M3 suffix for halogen-free and RoHS compliance. Cross-reference the document number 87587 against official Vishay archives to ensure the datasheet version aligns with the production batch requirements.

Diode Arrays Selection Notes

Select this component when a dual Schottky rectifier in an SMPD package is required for high-frequency applications. Ensure the thermal management design accommodates the specified junction-to-ambient thermal resistance. Verify that the operating voltage does not exceed the 45 V rating and that the average current per diode remains within the 20 A limit under expected case temperatures.

Diode Arrays Part Context

This part belongs to the eSMP series of dual low-voltage TMBS rectifiers. It shares the SMPD (TO-263AC) mechanical footprint with other devices in the family but differs in electrical ratings. The HM3 variant offers AEC-Q101 qualification for automotive environments, whereas the standard M3 version focuses on commercial and industrial reliability.

Diode Arrays Replacement Considerations

V40CM45-M3/I

Diode Arrays FAQ

Is the V40DM45C-M3/I qualified for automotive applications?

No, the standard V40DM45C-M3/I is not AEC-Q101 qualified. The automotive-qualified version is designated with the HM3 suffix (V40DM45CHM3/I).

What is the typical forward voltage drop at elevated temperatures?

At a junction temperature of 125 °C and a forward current of 20 A, the typical instantaneous forward voltage is 0.48 V.

How is the forward current distributed between the diodes?

The device has a total maximum average forward rectified current of 40 A, which is split equally as 20 A per diode in the common cathode configuration.