Author Topic: WTB: Unijunction transistors  (Read 6051 times)

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loss1234

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WTB: Unijunction transistors
« on: July 30, 2011, 11:13:07 AM »
Looking for NOS or pulls... Unijunction Transistors.(UJT's) (not PUJT's)..Trying to get around 100-200 of them for a project I am working on.

thanks!

aron

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Re: WTB: Unijunction transistors
« Reply #1 on: July 30, 2011, 04:32:36 PM »
Wow, I don't know where to find them.

toneman

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Re: WTB: Unijunction transistors
« Reply #2 on: July 30, 2011, 06:03:25 PM »

www.digikey.com

search  "unijunction"

http://search.digikey.com/scripts/DkSearch/dksus.dll?lang=en&site=US&KeyWords=unijunction&x=0&y=0


www.mouser.com

search "unijunction"

http://www.mouser.com/Search/Refine.aspx?Keyword=unijunction

A lot of times (mouser & digikey), UJTs and PUJTs are listed in the SCR category.

Just click on the part number and download the pdf datasheet.
THEN U will see that's it's a UJT or PUJT instead of an SCR.

A UJT should be cheap, say under 50cents.

afn
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loss1234

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Re: WTB: Unijunction transistors
« Reply #3 on: July 31, 2011, 11:15:50 AM »
A Programmable Unijunction wont work for this....The cheapest true Unijunctions Mouser or Digikey have are around 3-5 bucks a piece! ouch


526-NTE6402


   
NTE6402


NRND

   NTE    Replacement Semiconductors TO-92 UNIJUNCT TRAN    Data Sheet    217
In Stock
More Info Available
   
1:    $2.01
100:    $1.81
500:    $1.63
1,000:    $1.46
 
More:


THANKS

R.G.

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Re: WTB: Unijunction transistors
« Reply #4 on: July 31, 2011, 07:51:05 PM »
A Programmable Unijunction wont work for this
While that may be true, I have yet to find an application that a true UJT will do that a PUT won't. Some redesign may be required, and the are not pin-for-pin, but that is after all what PUTs were for.
R.G.

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