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This question already has an answer here:

I can't find SMD diode part no from Marking code,pls suggest if possible.enter image description here

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marked as duplicate by dim, Lior Bilia, Dmitry Grigoryev, JYelton, DoxyLover Jul 19 '18 at 23:18

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  • \$\begingroup\$ thats because those codes generally say nothing much about it and are not meant for these identification purposes \$\endgroup\$ – PlasmaHH Jul 9 '18 at 9:54
  • \$\begingroup\$ How big is it ? \$\endgroup\$ – Tom Carpenter Jul 9 '18 at 11:55
  • \$\begingroup\$ Remove it from the board and try measuring the forward voltage drop \$\endgroup\$ – Umar Jul 9 '18 at 17:41
  • \$\begingroup\$ sir it is SOD23 \$\endgroup\$ – Pradip Bharambe Jul 12 '18 at 4:00
  • \$\begingroup\$ @dim it is not necessary to mark this as a duplicate question, the link provided is related, but not a duplicate \$\endgroup\$ – Voltage Spike Jul 17 '18 at 20:36
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My guess is: CMOZ43L in SOD523, marking R1 found here: https://www.centralsemi.com/get_document.php?cmp=1&mergetype=pd&mergepath=pd&pdf_id=CMOZ2L4_SERIES.PDF

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  • \$\begingroup\$ Sir it is SOD23 \$\endgroup\$ – Pradip Bharambe Jul 12 '18 at 4:04

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