2SA968 DATASHEET PDF

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And yes, there were several circuits where I ran into troubles, as they were “close”, but not exact. Just did a search on digikey with a few additional cases that should mount onto a TO heatsink, and 2sq968 very many results, and of those many are BU’s, which are switching transistors and I assume it’s not what you’re after. Were the replacements matched? Anon6f72b Anon Jun-8 3: Dear Comcast, I won’t use your email service Would typically last a year.

Anon6f72b to Anonb Anon Jun-7 3: This may have been part of the reason the recent repair using substitutes failed. They really ARE made of unobtainium! I managed to get 32 devices that matched to my tolerance.

(PDF) 2SA968 Datasheet download

Forward current transfer ratio hFEmin: Comes up not found at my regular suppliers. So it is up to the characteristics being audio-friendly. That was troublesome even 30 years ago! My biggest concern is having the amplifier come back a month later because the parts didn’t last. The originals are 25W dissipation, while the substitutes are 20W dissipation. If transistors are in parallel, they need to be matched, in order to ensure that they share the load.

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Anonb Anon Jun-7 5: I’ve seen that with 6. Anon6f72b Anon Jun-7 1: Anonb Anon Jun-6 9: 2a968 car lied to me! The output transistors appear to be original Sanken RETs. In audio applications, the fT won’t make a difference.

Substitutes for 2SC & 2SA – Electronics | DSLReports Forums

Most Active Forum Topics this week Class A amps were one case. The O and Y are grades, as datashset person mentioned above. I can’t even find a datasheet for 2SC on the web.

I think it ran right at the limit of current. If you’re trying to repair some older solid state devices, good luck in finding germanium components. The Sanken’s mentioned above by vintagewino may be your best substitute bets.

Shorted outputs, shorted drivers and pre drivers. A little too close for comfort on the spec. But yes, the hFE should be close for each group. The fT is lower than original, but that should not present a problem. I used them in the ’70s. Went to an MJ, and they lasted a tad over 10 years. There are people that argue that matching 2sw968 critical if emitter resistors are employed.

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The pre drivers, 2SC and 2SA are proving to be even more elusive than the drivers!

2SA Datasheet, PDF – Alldatasheet

22sa968 to Anonb Anon Jun-7 2: Widespread Centurylink Outage this morning Also the MV diodes get replaced, as these are notorious for failing and turning on both halves of the output stage simultaneously. Anonb Anon Jun-8 Personally, I’d tend to think that the chances of getting genuine parts from Digikey is pretty good.

It was not that they were bad, it is that thay are a generic replacement for many parts.

Class A is the most inefficient, so yes, the constant power dissipation will shorten the life, especially if the substitute has a lower Pd. Repairing a Sansui G 2sa98 things have changed, but, when I used to use NTE substitutes, I never had a bad one out off the box and none of them failed after being installed. It’s rare to find any Sankens that are NOT counterfeit parts these days. Obviously, certain critical parameters have to be met, but even then, operating something close the edge could still lead datashedt early failures.