Where to find these Toshiba devices, Sajti? Mouser just only available KSA1142 but its complementary KSC2682 that always in End of Life status?!
Where to find these Toshiba devices, Sajti? Mouser just only available KSA1142 but its complementary KSC2682 that always in End of Life status?!
Hi,
please check: 004b Toshiba Bipolar Transistors - BJT | Mouser Hungary
Sajti
Wow, thanks Sajti!
I don't know Mouser sold them, i have seen it as long time ago on Toshiba semi website, their specs. are quite perfect.
I don't know Mouser sold them, i have seen it as long time ago on Toshiba semi website, their specs. are quite perfect.
Did anyone use these?
http://www.mouser.com/ds/2/308/EN2262-D-310459.pdf
Looking for vas alternatives for a while now...
http://www.mouser.com/ds/2/308/EN2262-D-310459.pdf
Looking for vas alternatives for a while now...
Did anyone use these?
http://www.mouser.com/ds/2/308/EN2262-D-310459.pdf
Looking for vas alternatives for a while now...
I have some of them (and the PNP complementer as well) but the capacitences are high for VAS (to me). But looks good as first stage of triple output darlington.
Sajti
why you perfer tta/ttc004b?
I have a good experience with the Toshiba BJTs. Still have about 100pcs. of 2SC3423/2SA1360, which are the best VAS transistors, I ever used.
This is why I plan to try TTC/TTA004B.
Sajti
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i mean why u you perfer TTC/TTB004B superior to onsemi 2sa1552/2sc4027?
I don't prefer them, yet. I will give a chance both of them. Anyway the TTC/TTA has somewhat lower internal capacitances, which I found important. That's all.
Sajti
I plan to try Toshiba TTC/TTA 004B as predriver. They look promising.
Sajti
why you perfer tta/ttc004b?
1.5A, 17pF Cob, 10W indicates they might make good driver transistors.I have a good experience with the Toshiba BJTs. Still have about 100pcs. of 2SC3423/2SA1360, which are the best VAS transistors, I ever used.
This is why I plan to try TTC/TTA004B.
Sajti
They do not look like pre-drivers, nor VAS devices.
But their SOA is down to 0.6W @ Vce=50V and Ta=25degrees C.
If you can keep Tc to 25dgrees C you can get 2W @ 50Vce from them.
Their 10W rating only applies for voltages <=10Vce.
Looks to me that they don't suit supply rails as high as +-50Vdc.
their param point to driver duty. 1.5A, (22)/12pF Cob, 15W and a good combination of speed & hFE.Did anyone use these?
http://www.mouser.com/ds/2/308/EN2262-D-310459.pdf
Looking for vas alternatives for a while now...
This time they have 7W capability @ 50Vce & Tc=25degreees C.
and 12W @ 30Vce
Much higher than the Tosh devices.
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Almost, but most mfg's 160V portfolios are pretty stagnant and ordinary. I chose devices from On's (then Sanyo's) 100V portfolio instead.Did anyone use these?
http://www.mouser.com/ds/2/308/EN2262-D-310459.pdf
Looking for vas alternatives for a while now...
Regardless they are not VAS devices.
The voltage rating is somewhat misleading, if you don't really need 160V withstand voltage some 100V devices actually have equal or higher SOA in the upper end of the voltage range than the 160V devices have in the same regions. R&D for 160V devices seems to be completely stagnant whereas there still does seem to be some demand for 100V BJT's.
For NEC's 2SA1156 - go to
https://www.renesas.com/eu/en/produ...bipolar-power-transistors/device/2SA1156.html
I am looking of an insulated outline, e. g. TO220F.
https://www.renesas.com/eu/en/produ...bipolar-power-transistors/device/2SA1156.html
I am looking of an insulated outline, e. g. TO220F.
Was this soekris power amp design ever presented?
Telstar,
I will shortly post the whole design, incl. PCB layout, a fully developed one with power supply and protection. I will probably also offer assembled boards (surface mount), but will use the Fairchild FJA4313OTU/FJA4213OTU in production.
The OnSemi NJW1302/NJW3281 are just a little better but also cost twice as much.
But that's for another thread....
Soren
It appears that Toshiba has erased the 2SA1013 and 2SC2383 models (and all traces of the products) from their website.
Does anyone still have the spice models?
Fairchild (ONSEMI) has only the KSC2383 and appears to have deleted all traces of the KSA1013.
Does anyone still have the spice models?
Fairchild (ONSEMI) has only the KSC2383 and appears to have deleted all traces of the KSA1013.
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