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Low-Profile Surface-Mount Schottky Diodes from STMicroelectronics Boost Power Density and Efficiency

Published: Aug 24,2020

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STMicroelectronics has launched 26 new Schottky diodes in low-profile SMA and SMB Flat packages, covering voltage ratings from 25 to 200V and current ratings from 1 to 5A.

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The 1.0mm-high devices have 50% lower profile than diodes in standard SMA and SMB packages, enabling designers to increase power density and save space. SMA and SMB footprint compatibility allows easy drop-in replacement. In addition, ST’s new Schottky diodes have higher current ratings than standard alternatives of the same footprint, allowing migration of existing circuits that contain SMC diodes to ST’s smaller SMB Flat devices, and similarly from SMB to SMA Flat.

With their inherently low forward voltage, these state-of-the-art devices deliver superior energy efficiency for industrial and consumer applications such as power supplies and auxiliary supplies, chargers, digital signage, game consoles, set-top boxes, e-bikes, computer peripherals, servers, telecom cards, and 5G repeaters.

With long-term availability assured by ST’s 10-year Product Longevity Commitment, the new Schottky diodes offer designers choices from the 30V/1A STPS130AFN and STPS1L30AFN in SMA Flat to the 200V/4A STPS4S200UFN and 100V/5A STPS5H100UFN in SMB Flat. All devices have specified avalanche characteristics and feature a notched lead suitable for wave soldering and reflow.

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