TIP626 transistor

Discussion in 'Electronics Resources' started by Johnrk, Oct 11, 2013.

  1. Johnrk

    Thread Starter New Member

    Oct 11, 2013
    2
    0
    I have a dilemma. In cleaning up my shop I came across a dozen TIP626 transistors in T0-92 packages. Research shows this type transistor to actually be in a T0-3 case and run 80 volts at 5 amps. It's described as a Darlington power transistor. Obviously my little ones are nowhere close to those values. Any clue as to what I actually have? A true enigma. I've attached a high resolution photo for review.
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,647
    2,346
    Hello,

    The part is most likely a BF247 N-channel junction fet.
    I have attached a datasheet for you.

    Bertus
     
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  3. ScottWang

    Moderator

    Aug 23, 2012
    4,853
    767
    Because the size limited the heat spead out, so you better treat it like as a bjt for a TO-92 packages has Imax rated=150mA and using it under 1/3 of Imax then it will be about 50mA, but you still need to measure the temperature of bjt when it working up to 50mA, the temperature should be just feel a little warm not feel hot, the temperature could be around or less than 104 ℉.
     
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  4. THE_RB

    AAC Fanatic!

    Feb 11, 2008
    5,435
    1,305
    According to my reference book;
    TIP626 Si PNP Darlington, 80v 5A 65W B>1000, package TO-3
    so they are not TIP626!

    Most likely they are B?247 like Bertus said.
     
  5. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,526
    2,369
    The T looks suspiciously like the T symbol for Teccor (now LittleFuse).
    It was most likely one of their different numbering schemes IP626?
    Max.
     
    Last edited: Oct 13, 2013
  6. Johnrk

    Thread Starter New Member

    Oct 11, 2013
    2
    0
    What I found so far, via testing, is that this is a PNP Silicone with a hFE of 42. One of them fell way out of the average with a hFE of 74 (or maybe the others are out of range). When I get the ambition I'll do a destructo test and find max E&I on one of them.
     
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