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| Who knows the part number and the vendor of this BJT? - RF Cafe Forums | ||||||
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Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would
be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate
that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views.
It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if
you would like to post something on RF Cafe's
Facebook page, please do.
Below are all of the forum threads, including all the responses to the original posts. 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): http://www.tkb-4u.com/code/smdcode/smdcodeH.php 1. The AD listing here has a BCY-58 SOT23 package by Philips: http://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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