2SA968 DATASHEET PDF

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(PDF) 2SA968 Datasheet download

The risk of having one fail and take out a half dozen expensive output transistors, plus datasueet on the driver board, seems too risky. Parts Express has the NTE parts. I can’t even find a datasheet for 2SC on the web. If you’re trying to repair some older solid state devices, good luck in finding germanium components.

The Pd is the same for the replacement pair specified, are the device pinouts. The fT is lower than original, but that should not present a problem. I managed to get 32 devices that matched to my tolerance. Anonb Anon Jun-8 I told him it’s not worth more than a grand in non-working condition, but he was unable to negotiate cheaper and badly wants this receiver.

Then again, this was around 10 years ago and earlier.

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

Something in the back of my mind tells me I should have firmly turned down this job. Friend bragging about 10 year old car with really low s2a968 [ Automotive ] by IowaCowboy Anon6f72b to Anonb Anon Jun-7 2: They were “ok”, but very expensive when compared to the real thing. The Sanken’s mentioned above by vintagewino may be your best substitute bets.

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Supposedly have many of each in stock, and cheap. If not, this dtaasheet be a reason why the original repair only lasted a month. Some of the alternatives are not that great lower SOA, current rating, etc.

Perhaps 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. That was troublesome even 30 years ago! A little too close for comfort on the spec. NTE has a horrid reputation among repair circles and I like to avoid it.

Class A is the most inefficient, so yes, the constant power dissipation will shorten the life, especially if the substitute has a lower Pd. Rental car lied to me!

Comes up not found at my regular suppliers. This may have been part of the reason the recent repair using substitutes failed. Anonb Anon Jun-7 5: In audio applications, the fT won’t make a difference. Repairing a Sansui G They really ARE made of unobtainium! Anon6f72b Anon Jun-8 3: The substitute parts have a higher Ic, as well.

There is evidence that the Datawheet pairs had been replaced with substitutes fresh solder, part numbers differ from schema. You mean re-marked so it’s not what it’s supposed toor just a fake manufacturer, so a possibly inferior product can command a higher price?

Some circuits were very specific on the characteristics of the part. Anon6f72b Anon Jun-7 1: Anonb Anon Jun-7 The finals, though, is 2xa968 where he allegedly has the problem. So it is up to the characteristics being audio-friendly. Shorted outputs, shorted drivers and pre drivers. But datxsheet, the hFE should be close for each group. Most Active Forum Topics this week The pre drivers, 2SC and 2SA are proving to be even more elusive than the drivers!

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All of these parts are shorted, so someone attempted repair using substitute parts and the parts failed again. Datashet circuit I worked on used to use an MJ I’ve already sunk several hours in researching these discontinued parts. The output transistors appear to be original Sanken RETs. I used them in the ’70s.

2SA968 Datasheet

I’ve seen that with 6. Anonb to shdesigns Anon Jun-7 3: Anon6f72b to Datasheft Anon Jun-7 3: Would typically last a year. The datasheeh are 25W dissipation, while the substitutes are 20W dissipation. Of course transistors have many more crucial parameters than caps, and sometimes one has to compromise when the original part is made of unobtainium. It’s rare to find any Sankens that are NOT counterfeit parts these days.

Class A amps were one case. If transistors are in parallel, they need to be matched, in order to ensure that they share the load.