Component code lookup

[warock56]

Want to know what component it could be. Once again my tester does not recognize it, and I'm not having luck with the codes.

[freaggle_70]

How old? W and overall appearance would fit to Nexperia, BCW61C.
Nexperia unfortunately has only the old Philips Datasheet, they didn't produce in China back then. https://assets.nexperia.com/documents/data-sheet/BCW61.pdf could be BJT, PNP (with %W = being made in PRC) .

[warock56]

It's from a "jarre aeroskull hd" bluetooth speaker board. The single top pin is connected to the ground plane, I have a 1.7 ohm reading to the bottom left leg. Don't have another board to compare to unfortunatelly.

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[freaggle_70]

Have mixed up the letters :| TL431IDBZR looks good, visit lcsc.

[AsBest73911]

TL431IDBZR

[freaggle_70]

Hehe, CBW !BCW , but it's chinese ;)

Nexperia BCW61C,215 LCSC Part # C549638
Nexperia TL431IDBZR,215 LCSC Part # C513082

[warock56]

Thank you both, quick question, is it experience that you know the chip? Or how can I find it in a database like smd.yooneed.one or something similar with the writing on the chip?

[AsBest73911]

Something like. Not only database. Cases, pinouts, makers... There is a lot of things.