NRVBB40L45CTT4G

Overview

The NRVBB40L45CTT4G is a dual Schottky barrier rectifier manufactured by onsemi, designed for high-efficiency power conversion applications. It features a common cathode configuration housed in a D2PAK-3 (TO-263-3) surface-mount package. The device is rated for a repetitive reverse voltage of 45 V and an average forward current of 40 A per diode. Key electrical characteristics include a maximum forward voltage drop of 580 mV at 40 A and a non-repetitive peak forward surge current capability of 350 A. The component supports operation up to a maximum junction temperature of +175 °C and meets AEC-Q101 automotive qualification standards.

Feature Summary

• Dual common cathode configuration enables efficient center-tapped or full-wave rectification in low-voltage power circuits.
• Ultra-low forward voltage drop minimizes conduction losses and improves overall system efficiency.
• Automotive-grade reliability with AEC-Q101 qualification ensures durability in demanding vehicle environments.
• High thermal performance allows stable operation at elevated junction temperatures up to +175 °C.

Applications

• Low voltage DC to DC converters
• Free-wheeling diodes in synchronous rectification circuits
• Polarity protection in automotive electronics

Procurement Notes

Verify the specific suffix 'TT4G' against the manufacturer's latest datasheet to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status as manufacturing processes may evolve. Check for end-of-life notices or obsolescence warnings directly from onsemi before finalizing procurement plans.

Selection Notes

Select this component when designing systems requiring high current handling with minimal voltage drop in a compact surface-mount form factor. Ensure the PCB layout supports adequate thermal dissipation for the D2PAK-3 package. Verify that the 45 V reverse voltage rating exceeds the maximum expected circuit voltage with sufficient margin.

Part Context

This part belongs to onsemi's NRVBB series of high-current Schottky rectifiers. It serves as a modern replacement for older through-hole equivalents, offering improved switching characteristics and lower profile for automated assembly. The series is widely used in industrial and automotive power supplies where efficiency and reliability are critical.

Replacement Considerations

Consult onsemi documentation for direct pin-compatible alternatives within the MBRB or NRVBB families. Verify that any substitute maintains the same 45 V rating, 40 A current capacity, and D2PAK-3 footprint to ensure mechanical and electrical compatibility without redesigning the PCB.

FAQ

What is the maximum operating junction temperature for the NRVBB40L45CTT4G?

The maximum operating junction temperature is +175 °C, allowing for robust performance in high-temperature environments.

Is the NRVBB40L45CTT4G qualified for automotive applications?

Yes, the component is AEC-Q101 qualified, making it suitable for use in automotive electronic systems.

What is the package type for this dual Schottky rectifier?

It is housed in a D2PAK-3 (TO-263-3) surface-mount package, which facilitates efficient heat dissipation and automated placement.