Powerful rectifiers packed in 1mm-thick packages

PSMC (TO-277A), SMA Flat, SMB Flat, SOD123 Flat and SOD128 Flat packages

The increasing demand for compact power management systems has brought about the need for excellent thermal design. Thanks to newly engineered power density and thermal conduction technologies, the PSMC (TO-277A), SMA Flat, SMB Flat and SOD Flat packages for diodes and rectifiers combine compactness and high power density, making them ideal for space-constrained circuits.

Further details on the light and ultra-small packages:

Industrial- and automotive-grade
devices:

SOD123 Flat, from 1 to 3 A
SOD128 Flat, from 1 to 5 A
PSMC (TO-277A), from 5 to 12 A

Mainly aimed at industrial-grade applications:

SMA Flat, from 1 to 3A,
25 to 170 V
SMB Flat, from 3 to 5 A,
40 to 200 V

SMA Flat and SMB Flat
dedicated flyer:

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Features & Benefits

This series of diodes in a thin package helps electrical engineers design circuits with higher thermal performance in a compact format, leading to device miniaturization and fewer bill-of-material costs.
It is suitable for the following extended range of devices, including automotive applications, as it is compliant with AEC-Q101 standards:
• Automotive Electronic Control Units, lighting circuits, injection units
• Industrial equipment
• Telecom power and servers
• Notebook adapters and battery chargers with ultra-compact form factors

The automotive-grade devices of this series have a maximum junction temperature of 175 ºC.
For PSMC (TO-277A), SOD123 Flat and SOD128 Flat packages, the heat is sunk downwards from the chip to the PCB at the bottom. Optimized copper clips were designed with a large coverage on top of the die. They provide better thermal conduction than common aluminum wire bonds.

Featured series:

Housed in the 1mm-thick SMA Flat and SMB Flat packages, ST’s 30 to 200 V power Schottky rectifiers are tailored for miniature LED lighting, battery-powered equipment and power converters for consumer and harsh industrial environments thanks to their junction temperature (T_j) ranging from –40 to +175 °C. Compatible with reflow and wave-soldering (notch), they also belong to a No-Tariff country back-end and benefit from our 10-year longevity commitment.