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Help needed for transistor cross reference

Discussion in 'Electronic Repair' started by Golf, Sep 15, 2007.

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  1. Golf

    Golf Guest

    I am trying to locate an NPN transistor #2SD1835. I did an NTE cross
    reference and no luck. I have other components I need to order and am
    trying to keep from ordering from more than one supplier to avoid
    additional shipping charges. I usually order from Mouser who always
    has the NTE part. I tried searching Mouser using the transistor data I
    have but got no results. Is this an oddball transistor, or is it a
    familiar with a different component number? Thankyou for any help.
     
  2. Eeyore

    Eeyore Guest

    If you find the data for the 2SD1835 I'm sure you could find a suitable
    replacement. Just because it doesn't appear in a cross-reference book doesn't
    make it an oddball.


    Graham
     
  3. Arfa Daily

    Arfa Daily Guest

    According to the data sheet, it's only a little TO92 transistor, allbeit
    specced as a 'high current switching' transistor. It appears to be nothing
    special, with just general purpose applications stated for it. When I come
    across one of these little TO92's that has failed in a 'high current'
    application like in part of a power supply regulator or switching the supply
    to hifi's CD section or whatever, I just fit whatever comes to hand with a
    TO126 (small flatpak) outline. A BD131 is usually good for the job, although
    there are plenty of similar 2S series Jap transistors as well. It has the
    same E-C-B pinning (with the metal pad away from you, as the TO92 (flat
    towards you), and the same pin pitch, so can just drop in the original
    holes.

    Arfa
     
  4. N Cook

    N Cook Guest

    You can always sleeve one lead and cross it over , in combination perhaps
    with rotating 180 degrees if current, gain , voltage, and frequency
    otherwise match or excede but the pinning is wrong for direct pin for pin
    replacement.
     
  5. Golf

    Golf Guest

    Thanks for the reply. Sounds like this is pretty straight forward
    since I have a Mouser catalog. Thanks.
     
  6. Golf

    Golf Guest

    Thanks for relpying. I will try this as a sub. Looks like it is more
    than capable.
     
  7. Tim Schwartz

    Tim Schwartz Guest

    Hello,

    According to the Japanese spec book I've got:

    2SD1835 - (NPN)
    60V(CBO)
    50V(CEO)
    2A
    750mW
    200h(FE)
    150MHz(f(T))
    compliment to a 2SB1229


    I THINK (but am not positive) that the pinout, with the flat side facing
    you is:

    Emitter - Collector - Base

    There is nothing really special about this transistor except it is
    rated for rather high current for a tall TO-92 case. On the other hand,
    you might be able to use a TO-126 or TO-220 case device if there is room
    for one. I think a ZTX-653 would do the job too.

    Regards,
    Tim Schwartz
    Bristol Electronics
     
  8. Franc Zabkar

    Franc Zabkar Guest

    My vrt databook says ...

    Si-N , S, lo-sat, 60V, 2A, 150MHz, <35/580ns, pinout BCE

    So it looks like a switching transistor, with low VCEsat. These are
    often used to drive the motors in RC cars.

    The databook suggests 2SC3328 as a substitute.

    - Franc Zabkar
     

  9. http://www.vancebaldwin.com/products/?2SD1835


    --
    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
     
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