smd marking

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duikkie
Posts: 2707
Joined: Fri Feb 07, 2014 3:28 pm

smd marking

Postby duikkie » Fri Sep 29, 2017 1:00 pm

is there a good site where i can find how and what it supposed to be

like A7 ?

A19T

4054

anyone knows this ic

16390
E165536-66197 ??

crj
Posts: 320
Joined: Thu May 02, 2013 4:58 pm

Re: smd marking

Postby crj » Sat Sep 30, 2017 12:53 am

I just intuit which bit is the part number, then Google it. If the same number has meanings outside electronics, adding "ic", "pinout", "datasheet" etc. might help.

It's better to work with fragments of the number, not the whole thing. For example, "16390" finds the Texas Instruments SN74CBT16390 mux/demux, which may or may not be similar to what you're seeing.

If Google lets you down, try feeding the number to Mouser, Digikey, Octopart, RS, Farnell, ...

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1024MAK
Posts: 6791
Joined: Mon Apr 18, 2011 4:46 pm
Location: Looking forward to summer in Somerset, UK...

Re: smd marking

Postby 1024MAK » Sat Sep 30, 2017 2:34 am

4054 is likely to be this
For small parts like transistors, somewhere on the internet, there is a list of the most often used codes for transistors...


There is also the ecadata database

Where a search for A7 brings up this result.

Mark
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