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I was trying to repair the main board of a monitor (Samsung S27B750V), and after a few hours I did something I shouldn’t have, and blew this component. I have tried to search for this but I am unable to find anything about it. Need to have it replaced. It reads “SOZ B21” I believe.

Perhaps there is an alternative to it? I have a lot of old PCB's laying around, but have never seen this kind on any of them.

EDIT: After uploading both photos I see they have different text in the middle.

Dimensions are 4.3 x 2.4 mm

SOZ B21 component (Samsung S27B750V) enter image description here enter image description here

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    \$\begingroup\$ Welcome to EE.SE! What capsule size is this? Your image appears stretched. Also, please zoom out a bit so we can follow the traces. \$\endgroup\$
    – winny
    Nov 7, 2019 at 12:24
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    \$\begingroup\$ Can you provide an image showing a bit more around the component - making it easier to guess its functionality by what it is connected to :) \$\endgroup\$ Nov 7, 2019 at 12:25
  • \$\begingroup\$ @winny To me it looks like a SOT89-5 \$\endgroup\$ Nov 7, 2019 at 12:26
  • \$\begingroup\$ @RichardtheSpacecat - The parts have 6 leads if you look closely at the pictures. \$\endgroup\$ Nov 7, 2019 at 12:39
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    \$\begingroup\$ Nicely asked question with good photos... +1. \$\endgroup\$
    – rdtsc
    Nov 7, 2019 at 14:27

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My best guess it's an ABLIC S-1172B33-U5T1x low dropout regulator (3.3V).

S1172 series LDO

SOZ denotes the 3.3 V version and B21 is the lot number.

enter image description here

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    \$\begingroup\$ Very nicely done. \$\endgroup\$ Nov 7, 2019 at 13:19
  • \$\begingroup\$ Wow, thank you so much! That definetly answers why it went. I gave it 14V.. \$\endgroup\$
    – Andreas
    Nov 7, 2019 at 13:22
  • \$\begingroup\$ @Andreas You are most welcome! Or should I say du är väkommen? \$\endgroup\$
    – winny
    Nov 7, 2019 at 13:23
  • \$\begingroup\$ Now hopefully no 3.3v devices are damaged... \$\endgroup\$
    – rdtsc
    Nov 7, 2019 at 14:26

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