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Diodes output rectifiers cool applications

Posted: 23 Mar 2011 ?? ?Print Version ?Bookmark and Share

Keywords:SBR? rectifiers? Schottky? LED TV? SMPS design?

Diodes Inc. grows its portfolio of patented Super Barrier Rectifiers (SBR) with the introduction of 12A and 15A rated devices which the company claims delivers better efficiency and cooler operation as the output rectifiers in space limited SMPS design than standard Schottky rectifiers. This comes from the devices' ultralow forward voltage drop.

The 12A rated SBR12U100P5 and SBR12U120P5 offer blocking voltage capabilities of 100V and 120V respectively and suit slim laptop, netbook adapter, LCD and LED TV applications. As an illustration of the devices' low forward voltage performance, it is typically 0.63V for the SBR12U120P5, for a forward current of 12A at an operating temperature of 125C.

The 15A rated version, the SBR15U30SP5, also fits next generation solar panel design, where low profile bypass diodes are mounted directly beneath the glass.

With a thermally efficient clip bond helping to achieve a higher forward surge rating, the PowerDi5 packaged SBRs also raise power supply reliability, by offering increased protection against large turn-on spikes and better overall thermal heat transfer than larger packaged rectifiers. Compared to the SMC package, the PowerDI5's 26mm2 footprint is 41 percent smaller and its height of 1.15mm is half that of the DPAK (TO252) package.

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