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One component on this board has eluded me. It is marked S447 horizontally at top, the letters MEX down the right an J6 at the bottom. The T logo is stylized with a swooping top. Searching for the manufacturer has eluded me as well.

enter image description here

I appreciate any assistance identifying this component.

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  • \$\begingroup\$ The part in the picture is marked S447. \$\endgroup\$
    – JRE
    Feb 10, 2017 at 20:59
  • \$\begingroup\$ And I had it incorrect in the body as well. Thank you for pointing it out. \$\endgroup\$
    – David Sain
    Feb 10, 2017 at 21:04

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I've been searching the part for a while and searching up the logo, it's by Teccor Electronics which is now owned by Littelfuse. However searching up the catalog, I can't seem to find anything that fits the 3 number naming scheme. However that S in the front most certainly means that part is a SCR. This is all I got. It's probably a very old part. Perhaps talk to Littelfuse support.

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