onsemi

MBRM140T3

MBRM140T3 Description

The MBRM140T3 from onsemi is a Schottky diode designed for high-efficiency rectification in compact, power-sensitive applications. With a 40V reverse voltage (Vr) and 1A average rectified current (Io), it delivers fast recovery (<500ns) and low forward voltage drop (550mV @ 1A), minimizing power losses. Packaged in Powermite (surface-mount), it is optimized for space-constrained designs. The diode complies with EAR99 ECCN and is REACH unaffected, ensuring global usability. Though marked obsolete, it remains a reliable choice for legacy or cost-sensitive projects requiring robust performance in a miniature footprint.

MBRM140T3 Features

• Low Vf & Fast Recovery: 550mV @ 1A and <500ns switching enhance efficiency in high-frequency circuits.
• High Current Handling: 1A continuous current with low reverse leakage (500µA @ 40V).
• Compact Powermite Package: Ideal for dense PCB layouts, with MSL 1 (unlimited) moisture tolerance.
• Schottky Technology: Delivers lower thermal losses compared to standard PN-junction diodes.
• Surface-Mount Design: Enables automated assembly, reducing manufacturing costs.

MBRM140T3 Applications

• Power Supplies: DC-DC converters, SMPS, and voltage clamping circuits benefit from its fast switching.
• Portable Electronics: Smartphones, tablets, and wearables leverage its low Vf for extended battery life.
• Automotive Systems: Used in infotainment and LED drivers due to its reliability under 40V loads.
• Industrial Controls: Motor drives and inverters utilize its high-current rectification capabilities.

Conclusion of MBRM140T3

The MBRM140T3 excels in high-speed, low-loss rectification, offering a balance of performance and miniaturization. While obsolete, its **Schottky advantages—fast recovery, low Vf, and compact packaging—**make it a pragmatic choice for legacy designs or applications prioritizing efficiency in tight spaces. Engineers should evaluate alternatives for new designs but can rely on this diode for proven performance in demanding environments.