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optional parts for applied sensors edu. kit — Parallax Forums

optional parts for applied sensors edu. kit

graffixgraffix Posts: 389
edited 2011-12-07 08:38 in General Discussion
http://www.parallax.com/Portals/0/Downloads/docs/prod/edu/KidWindPump-v1.0.pdf

2A High-gain transistor (ZTX1049A NPN, zetex.com) Parallax #500-00004 1
which one is required
http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&lang=en&site=us&keywords=ztx1049a+npn&x=22&y=13
first,second,third or forth item on this page

Comments

  • RDL2004RDL2004 Posts: 2,554
    edited 2011-12-07 08:10
    It looks like those are all actually the same item. Those may just be part number variations due to pricing (tape and reel, box, etc.) or some could refer to older versions which are no longer available. On that Digi-Key page you linked to only the last item is available in single quantities. The others are bulk, 2000 minimum. Unfortunately it looks like they don't have any of them in stock. Mouser has the ZTX1049A in stock in single quantities though.

    http://www.mouser.com/Search/...ztx1049
  • graffixgraffix Posts: 389
    edited 2011-12-07 08:14
    Why,Thank You much sir.
  • Tracy AllenTracy Allen Posts: 6,666
    edited 2011-12-07 08:38
    Graffix, You could substitute the ZTX1053, which Digikey does currently have in stock. Both are superbeta (high gain) NPN transistors capable of high collector currents for driving the motor.
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