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I also thought this too except all diodes and also some transistors have designation of Z on this board. There are no D designations. All diodes and SOT packages on this board are designated either Z or CR. Not sure why some are Z and some are CR or why they didn't stick with convention. It is annoying....
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Thanks! So you new the package name and searched S3 with it?
Here is a datasheet for MBR130. It says min Vf of 0.47. I am measuring 0.2V. Could it be a different diode in my circuit?
[url]https://www.onsemi.com/download/data-sheet/pdf/mbr130t1-d.pdf[/url]https://Thanks! So you new the packa...t1-d.pdf[/url]
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Hi there. My name is Dan. I have been working as an EE/CE for 2 years as a hardware security researcher and FPGA developer. I have just recently begun repairing and reverse engineering industrial electronics when I am not at my day job. I am looking for all the help I can get as I can't do this alone!...
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SMD Diode S3 marked on package
I need to find a replacement for this diode on one of the six gate drivers of a full-bridge IGBT inverter for a servo motor. It has S3 on the package. How can I find out for sure the right diode that I need. I believe it is schottky because it has 0.2V drop across.
The anode is on pin Ve and cathode on pin DESAT on 316J gate driver IC. Also would be nice if anyone had an idea of the purpose it is serving as it is not included in the suggested schematic of the 316J datasheet.
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