I've smoked one beyond repair (according to repair shop) in my earlier HIFI days. I bridged it into a 4Ohm 76dB sensitive diy copy of the Apogee Scintila. That was before I learned not to do that
.(I'm sorry - had to tell that story....back to topic)
https://www.mouser.com/datasheet/2/408/2SA1943_datasheet_en_20160107-1649828.pdf
https://www.mouser.com/ProductDetai...MI--Pxi-Wh8AIV9CCtBh3kBQvjEAAYASAAEgKckvD_BwE
Wait be back in stock 18 may 2021 from Mouser and at very good price.
Edit: Photos of two versions, other country made good transistor and good made in Japan
GenuineAttachments
Toshiba NPN complementary to 2SA1943 are in stock now BTW
https://www.mouser.com/datasheet/2/408/2SC5200_datasheet_en_20160107-1649945.pdf
2SC5200-O(S1,F Toshiba | Mouser
https://www.mouser.com/datasheet/2/408/2SC5200_datasheet_en_20160107-1649945.pdf
2SC5200-O(S1,F Toshiba | Mouser
2SA1943
Those are suspect, wrong package for 2SA1943
2SA1941/2 better behaved than 2SA1943. Look at Ic-Vbe curves for each.
Each new generation of Toshiba output are die shrunk compared to previous series, contrast 2SA1265 to 2SA1941 Ic-Vbe curves. I believe it happened again with TTA series.
The second highest current model i.e. 2SA1941 or 2SA1942 (which share the same die in different package) usually have best overall balance of characteristics.
Those are suspect, wrong package for 2SA1943
2SA1941/2 better behaved than 2SA1943. Look at Ic-Vbe curves for each.
Each new generation of Toshiba output are die shrunk compared to previous series, contrast 2SA1265 to 2SA1941 Ic-Vbe curves. I believe it happened again with TTA series.
The second highest current model i.e. 2SA1941 or 2SA1942 (which share the same die in different package) usually have best overall balance of characteristics.
oh yeah - my bad, but just half
I was evidently distracted , so was thinking that twitchie was asking about 2SA1491, and they;re in sorta that package
though - I know that I saw same packaged 2SA1943/2SC5200 in last few days , at reputable Vendor pages
I was sorta surprised, but - not that I'm using much bjts in last few years
see
https://eu.mouser.com/Semiconductor...sistors-BJT/_/N-ax1sh?Keyword=2SA1943&FS=True
Blocked
I was evidently distracted , so was thinking that twitchie was asking about 2SA1491, and they;re in sorta that package
though - I know that I saw same packaged 2SA1943/2SC5200 in last few days , at reputable Vendor pages
I was sorta surprised, but - not that I'm using much bjts in last few years
see
https://eu.mouser.com/Semiconductor...sistors-BJT/_/N-ax1sh?Keyword=2SA1943&FS=True
Blocked
2SA1943
The ones I posted previously are from Mouser and they have it listed as a new item so Motorola must be putting them into TO-247 now.
I got a batch of the older package from Digikey so I have both now
Yes, Greedy
2SA1943-O(S1,F Toshiba | Mouser Canada
The ones I posted previously are from Mouser and they have it listed as a new item so Motorola must be putting them into TO-247 now.
I got a batch of the older package from Digikey so I have both now
Yes, Greedy
2SA1943-O(S1,F Toshiba | Mouser Canada
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