STMicroelectronics STPS50U100C: Power-rectifier diode provides low forward-voltage drop

March 17, 2010

The STPS50U100C high-efficiency power-rectifier diode suits use in the output of power supplies for adapters, desktop PCs, servers, and TV and video products. The forward-voltage drop is the primary source of power loss in power Schottky diodes in secondary rectification. The power rectifier reduces this voltage drop using a driver to a typical figure of 0.64V at 25A and 0.38V at 5A. Additional features include 200-mA maximum leakage current, 50A maximum average forward current, and 250A surge nonrepetitive forward current. Available in TO-220 and I²Pak packages, the device costs $1.50 (1000).

STMicroelectronics, www.st.com

Posted by EDN Staff on March 17, 2010 | Comments (2)

March 24, 2010

In response to: STMicroelectronics STPS50U100C: Power-rectifier diode provides low forward-voltage drop
KaiserSoze commented:

I Checked the STM datasheet: the correct value is 200uA @ Vr=Vrrm and T=25^C; typical value is 40uA. At Higher temperature (T=125^C) the leakage current arise to 40mA max, 15mA Typ.

March 24, 2010

In response to: STMicroelectronics STPS50U100C: Power-rectifier diode provides low forward-voltage drop
KaiserSoze commented:

I Think there is an error about the leakage current,probably 200uA or 200nA (It depends on the test temperature).Have a good day

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