onsemi

MBR140SFT1

MBR140SFT1 Description

The MBR140SFT1 from onsemi is a Schottky diode designed for high-efficiency rectification in low-voltage, high-frequency applications. With a 40V reverse voltage (Vr) and 1A average forward current (Io), it offers fast recovery (<500ns) and low forward voltage drop (550mV @ 1A), minimizing power losses. Packaged in a SOD123FL surface-mount form factor, it is ideal for space-constrained designs. The diode complies with EAR99 and REACH Unaffected regulations, ensuring broad usability. Its low reverse leakage (500µA @ 40V) and unlimited MSL 1 moisture sensitivity make it reliable for industrial and consumer electronics.

MBR140SFT1 Features

• Schottky Technology: Delivers ultra-fast switching and low thermal resistance.
• Low Vf (550mV @ 1A): Enhances efficiency by reducing conduction losses.
• High Current Handling: Supports 1A continuous current with robust performance.
• Surface-Mount (SOD123FL): Compact footprint for PCB space optimization.
• Fast Recovery (<500ns): Ideal for high-frequency circuits like DC-DC converters.
• Low Reverse Leakage: 500µA @ 40V ensures minimal standby power dissipation.
• Compliance: Meets EAR99 and REACH Unaffected standards for global deployment.

MBR140SFT1 Applications

• Power Supplies: Used in synchronous rectification for switch-mode power supplies (SMPS).
• DC-DC Converters: Efficient energy conversion in buck/boost topologies.
• Reverse Polarity Protection: Safeguards sensitive circuits in battery-powered devices.
• Portable Electronics: Smartphones, tablets, and wearables benefit from its low Vf and compact size.
• Automotive Systems: Suitable for infotainment and LED lighting due to high reliability.

Conclusion of MBR140SFT1

The MBR140SFT1 stands out for its fast recovery, low forward voltage, and compact design, making it a superior choice for high-efficiency rectification. While marked obsolete, its performance in high-frequency and low-power applications remains unmatched. Engineers should consider alternatives for new designs but can leverage its proven reliability in legacy systems. Ideal for space-sensitive, energy-efficient circuits, it exemplifies onsemi’s expertise in Schottky diode innovation.