A power transistor from the seventies in a TOP3 case with the following printed on it: line 1: "Texas Instruments logo" 8302 line 2: 3-453
It is used as a power transistor in a (dead) 5V power supply. A datasheet or specs (Ic max) would be great.
Thanks, Jenalee K.
Well a 5V power supply isnt too critical an application-- you can probably replace it with most any old TO-3 of the correct polarity.
** The " 8302 " code tells you it was made in the second week of 1983.
The other number is a private ID code applied for the benefit of maker of the PSU.
** LOL - what an optimist.The device is likely a TIP3055.
The TIP35 is another or even the TIP140 Darlington.
YOU need to figure out if it is NPN or PNP and a single transistor or Darlington.
....... Phil
Phil Allison a =E9crit :
Thanks Phil, at least now I know that it was built somewhere in the eighties. BTW, according to the schematics the transistor is PNP.
Thanks, Jenalee K.
"Jindalee K." ** Groper alert !
Thanks Phil, at least now I know that it was built somewhere in the eighties. BTW, according to the schematics the transistor is PNP.
** So, if it IS a transistor and NOT a Darlington - the odds are very high it's a TIP2955.The TIP36 is a remote option.
Few other TIP numbers from the early 80s would qualify.
TIP2955s are still available - AFAIK.
...... Phil
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