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Transistors in DIP?

Discussion in 'Electronic Components' started by Stephanie, Oct 5, 2007.

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  1. Stephanie

    Stephanie Guest

    Not sure what series this is

    - NPN or PNP bipolar
    or
    - FETs

    small-signal transistors in through-hole DIP package.

    Where should I start looking?

    Stef
     
  2. Dave Platt

    Dave Platt Guest

    Not sure what series this is
    The only one I know off off-hand is the MPQ2222, a quad array of
    2N2222-type NPN transistors.

    This part appears to be obsolete. You might find a few at surplus
    dealers, or at the big $100-minimum-order IC consolidators. Blue Star
    seems to have a couple of dozen in stock at $2 each (ouch!)

    If you're thinking of going into production with parts like this, I
    think you'll probably decide to redesign using more modern
    surface-mount arrays. There seems to be little demand for DIP-type
    arrays any more, and parts cost and availability are likely to become
    an even worse problem in the future.

    If you only need a handful, search around, or just make your own using
    DIP headers and discretes.
     
  3. Tim Shoppa

    Tim Shoppa Guest

    Common parts meeting your very vague outlines:

    ULN2003A = 7 darlington-connected NPN pairs, all the emitters common.

    CA3046 = 5 NPN's, pretty well matched, 2 of them connected as a
    differential pair

    CD4007 = 3 pairs of N and P channel transistors, one hooked up like an
    unuffered CMOS inverter, the other two pairs with independent drains
    and sources

    At one point there also existed arrays of 4 2N2222's or 4 2N3906's
    etc. in a DIP but I haven't seen these in years. In fact the CA3046 I
    mention above isn't very common anymore either.

    Tim.
     
  4. Eeyore

    Eeyore Guest

    Not sure what you mean !

    Graham
     
  5. Eeyore

    Eeyore Guest

    I suggest forgetting it. There's very little like that. There was stuff like the
    CA3086.

    Wow, it seems Intersil still have it.
    http://www.intersil.com/cda/deviceinfo/0,1477,CA3086,0.html

    Graham
     
  6. Jamie

    Jamie Guest

    I think what you're looking for are
    transistor arrays.
    They come in many forms.

    http://web.mit.edu/6.301/www/LM3086.pdf
    ULN2002A are open collector types good for 50volts at a .5 amps.
    http://www.onsemi.com/pub/Collateral/MC1413-D.PDF

    Ect..
    google hits = 68,600

    You should try it. :)
     
  7. clifto

    clifto Guest

    Seems to me I saw a whole lot of stuff that used the 3046 and 3086 over the
    years.
     
  8. Advanced Linear Devices


    Best regards,
    Spehro Pefhany
     
  9. 4 matched NPNs in a DIP14

    http://www.analog.com/en/prod/0,2877,MAT04,00.html

    GG
     
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