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These transistors needed

Discussion in 'Datasheets, Manuals and Component Identification' started by bigkim100, May 15, 2018.

  1. bigkim100

    bigkim100

    55
    0
    Apr 17, 2013
    I need a quantity of 30 of each of the following transistors:

    2sa945- Possibly a 2n2222 could be a replacement

    2sd467- Possible replacements You can replace 2SD467 with 2SC1383, 2SC1384, 2SC2235, 2SC2383, 2SC2655, 2SC3228, 2SC3243, 2SC3328, 2SC3940, 2SC3940A, 2SD438, 2SD468, 2SD592, 2SD592A, 2SD667, 2SD734, 2SD863, KSC1008C, KSC1009C, KSC2316, KSC2331, KSC2383, KTC1027, KTC1027-O, KTC1027-Y, KTC3209, KTC3211, KTC3228, KTD863

    2sb561- Possible replacements-2SC1383, 2SC1384, 2SC2235, 2SC2383, 2SC2655, 2SC3228, 2SC3243, 2SC3328, 2SC3940, 2SC3940A, 2SD438, 2SD468, 2SD592, 2SD592A, 2SD667, 2SD734, 2SD863, KSC1008C, KSC1009C, KSC2316, KSC2331, KSC2383, KTC1027, KTC1027-O, KTC1027-Y, KTC3209, KTC3211, KTC3228, KTD863

    I cant seem to find any of these thru the normal distributors (except the 2n22222)
    Thanks for the help
    Kim
     
    Last edited: May 15, 2018
  2. kellys_eye

    kellys_eye

    4,286
    1,143
    Jun 25, 2010
    The 2SD467 and 2SB561 seem to be run-of-the-mill NPN/PNP transistors - what I used to refer to (elektor-style) as TUN and TUP devices. There's nothing special about them and practically ANY low power, low voltage silicon devices will do.

    TUN (and TUP) stand for Transistor Universal NPN (or PNP when called TUP) which are effectively ANY low signal silicon transistors such as the BC547/557 - here's a link to a Googl search result that lists tables of TUN/TUP transistors. Fill yer boots!

    https://www.google.com/search?q=tun...AjIjbAhUEKMAKHdR_BCMQsAQINQ&biw=1855&bih=1079

    Chinese suppliers will sell you a bag of 300 of them for $5

    Here's 600 of assorted for under $10

    https://www.banggood.com/600Pcs-TO-...ue-Assortment-Kit-p-1098096.html?rmmds=search
     
  3. bigkim100

    bigkim100

    55
    0
    Apr 17, 2013


    Thank you very much Kelly...I do appreciate the help....easy replacement is all I need in this world to keep me happy
     
  4. duke37

    duke37

    5,118
    688
    Jan 9, 2011
    Check the connections.
     
  5. bigkim100

    bigkim100

    55
    0
    Apr 17, 2013
    Thank you...more than likely, I wont be blessed with the same pinouts.
    Im very lucky that the original units actually have the pinout names on the body
     
  6. kellys_eye

    kellys_eye

    4,286
    1,143
    Jun 25, 2010
    I always recommend one of those cheap Chinese component testers that will identify the lead-out, the gain of the transistor and some other parameters like Vbe - as well as dud ones of course!
     
  7. bigkim100

    bigkim100

    55
    0
    Apr 17, 2013

    I actually think I will buy one, they are cheap as chips
     
  8. 73's de Edd

    73's de Edd

    2,485
    1,012
    Aug 21, 2015
    The plastic Pn2222 and Pn2907 should work fine in your situation for the 2SD467 and 2SB561 motor drivers .
    The Pn2222 should also fill for the 2SA945 function.
    The pin arrangements, side by side , are also the same, but you have to watch their 180 degree positioning .
     
  9. bigkim100

    bigkim100

    55
    0
    Apr 17, 2013
    Thank you very much ed...Im just hoping the RF section is ok....I want to play around with that like I want a hole in my head.
     
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