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capslock 2nd April 2002 04:27 PM

Toshiba monolithic dual transistors: SA1349/SC3381
Thought it might be more appropriate to re-post here (as compared to the Solid State New Law thread). Please don't go and buy all the stock from Reichelt before I have my go:)

Found SA1349/SC3381 in Borbely article. Seem to be 80 V monolithic dual transistors with reasonable C_cb (4.2 for the SA, nothing quoted in Tower's for the SC, neither is f_T). Are still available from Reichelt at less than a each. Unfortunately, no data sheet and SPICE models at Toshiba or the web.


HarryHaller 2nd April 2002 04:49 PM


You guys are trying to get not to read this forum anymore aren't

As has been posted MANY times,


.model Q2sa1349 PNP(Is=11.12p Xti=3 Eg=1.11 Vaf=73.64 Bf=465.8 Ise=11.18p
+ Ne=14.46 Ikf=.3195 Nk=1.163 Xtb=1.5 Var=100 Br=1.388K
+ Isc=11.12p Nc=1.038 Ikr=44.24 Rc=29.73 Cjc=11.79p Mjc=.3037
+ Vjc=.3905 Fc=.5 Cje=5p Mje=.3333 Vje=.75 Tr=10n Tf=1n Itf=1
+ Xtf=0 Vtf=10)

.model Q2sa1162 PNP(Is=2.04f Xti=3 Eg=1.11 Vaf=100 Bf=183 Ise=2.14f Ne=1.465
+ Ikf=1.5 Nk=1.319 Xtb=1.5 Var=100 Br=10.97 Isc=2.619f Nc=1.707
+ Ikr=26.37m Rc=.5 Cjc=9.716p Mjc=.3333 Vjc=.75 Fc=.5 Cje=5p
+ Mje=.3333 Vje=.75 Tr=10n Tf=452.4p Itf=5 Xtf=0 Vtf=10)

.model q2sc2712 NPN(Is=639.5E-18 Xti=3 Eg=1.11 Vaf=172.5 Bf=151.1 Ise=3.827f
+ Ne=1.607 Ikf=.9977 Nk=.7224 Xtb=1.5 Var=100 Br=8.525 Isc=2.567f
+ Nc=1.141 Ikr=30.27 Rc=.815 Cjc=4.858p Mjc=.3333 Vjc=.75 Fc=.5
+ Cje=5p Mje=.3333 Vje=.75 Tr=10n Tf=314.2p Itf=9.945 Xtf=0
+ Vtf=10)

.model Q2sc3381 NPN(Is=21.11f Xti=3 Eg=1.11 Vaf=391.3 Bf=388.5 Ise=21.11f
+ Ne=1.47 Ikf=.8246 Nk=1.723 Xtb=1.5 Var=100 Br=2.888 Isc=56.39p
+ Nc=1.799 Ikr=8.483m Rc=79.65m Cjc=7.819p Mjc=.2251 Vjc=.3905
+ Fc=.5 Cje=5p Mje=.3333 Vje=.75 Tr=10n Tf=1n Itf=1 Xtf=0 Vtf=10)

If I were moderator I would ban you for a week. If you had asked how big a heat sink to use with....... I would have banned you forever. USE THE SEARCH ENGINE ON THE FORUM PEOPLE! PLEASE!!!


Jocko Homo 2nd April 2002 04:53 PM

How big of a heatsink does my STENDEC need?


mrfeedback 2nd April 2002 05:00 PM

That depends how much hot air your want to make.

The other Eric.

Jocko Homo 2nd April 2002 05:31 PM

Almost as much as Hairy........[joke]


capslock 2nd April 2002 05:34 PM

"official" models
Now I know why Jocko calls you by the funny name...

I did do a worldwide search for A1349/C3381. Tells you something about the quality of the search engine if it is not able to find a string in a text file...

But, being a frequent reader of your posts, I tried your link before posting. The header of the file reads:
* Library of Japanese Bipolar Transistor Models

* Copyright OrCAD, Inc. 1998 All Rights Reserved.

* $Revision: 1.8 $
* $Author: rperez $
* $Date: 17 Nov 1998 10:47:02 $
* ---------------------------------------------------------------------------
* The parameters in this model library were derived from the data sheets for
* each part. Each part was characterized using the Parts option.
* ---------------------------------------------------------------------------

Good news: whoever did the modelling had the data sheets.

Bad news: This is not the official model endorsed by the manufacturer (if there is any). This model was apperently synthesized by trying to duplicate the typical behavior in the data sheets. Knowing other Toshiba small signal transistor data sheets, not much information about dynamic behavior is given.
Maybe I should have stated more clearly that I was looking for official models.


mrfeedback 2nd April 2002 05:41 PM

That's alot.


HarryHaller 2nd April 2002 05:46 PM

I am sorry that the models were not use useful for you. It appears
that you are up Spice creek without a paddle. Maybe someone else can help.... perhaps Sonny. I am so sorry as not to be able to get you what you needed. By the way, the official name is Jocko and what funny name does he call me?


capslock 2nd April 2002 06:04 PM

Ok, edited that typo into Jocko. Well, don't tell me you haven't seen those references to Hairy Holler...

Have a nice day, anyway!


Jocko Homo 2nd April 2002 06:51 PM

Don't worry......he knows. His sense of humour is just as sick as mine. But Herr Eric, you haven't caught all the jokes yet. Keep looking, they are right in front of you (and everyone else) for one and all to see.

Keep on hollerin' Hairy.


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