yfish Post subject: Who knows the part number and the vendor of
this BJT? Unread postPosted: Tue Jan 18, 2005 6:58 pm --------------------------------------------------------------------------------
can anybody know the part number and the vendor of the following
2 BJTs? 1. SOT23 package, NPN type, with the characters "ADQ57"
on the back; 2. SOT23 package, PNP, with the characters "HB"
on the back; Thanks. Top Kirt Blattenberger
Post subject: Unread postPosted: Wed Jan 19, 2005 12:06 am
Offline Site Admin User avatar Joined: Sun Aug 03,
2003 2:02 pm Posts: 308 Location: Erie, PA I can't be certain
without doing more research, but here is a good start for you.
2. Likely Siemens (noe Infineon) since marking is similar to this
(see HB): https://www.tkb-4u.com/code/smdcode/smdcodeH.php
1. The AD listing here has a BCY-58 SOT23 package by Philips: https://www.tkb-4u.com/code/smdcode/smdcodeA.php
You might be able to do a Google Search on "ic package markings"
or a similar string to find your part. Good luck. - Kirt
Blattenberger :smt024 Posted
11/12/2012
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