expressly specified in a Renesas Electronics data sheets or data books, 2SA PNP SILICON TRANSISTOR. DATA SHEET. Document No. 2SA datasheet, 2SA pdf, 2SA data sheet, datasheet, data sheet, pdf, Fairchild Semiconductor, PNP General Purpose Amplifier. 2SA V, mA. PNP Plastic Encapsulated Transistor. Jan Rev. D. Page 1 of 2 Any changes of specification will.

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In any case, a mystery is solved, and I have learned a few things here. I was looking all over the web for 2saA with no luck: I actually had the datasheet for it on my PC.

The “A” suffix means new and improved. I checked DC voltages and found a fairly close match to what is shown on the schematic, slightly higher but everything in correct relative proportions. The “A” suffix usually designates a higher voltage rating. As you pointed out, 2sc is the complement to 2sa, so I would assume that the “A” version of 2sa has similarly increased temperature ratings.

One channel was intermittent. Inquiring minds want to know things. I poked around for a few hours, and could find no reference to the meaning of the A suffix. ZOOMAug 2, Share This Page Tweet. Where did you come up with a 2SAA?


I am hesitant to remove them because I have already reflowed once. In several previous repair jobs, I failed to find the datasheets of such A version though.

Just replace with ksa and call it a day. Is this the VAS, or some other stage? JURB – Thanks for the detailed explanation of transistor designations. Turns out there was a 2scA, at least briefly. Here is L channel, R is almost the same: But I did take some live readings, they were pretty close to what the schematic shows. Is this transistor in a high gain position?

They both had “halo” cracks in their solder joints. I can’t see the faces of actual parts well enough to read.

(PDF) 2SA733 Datasheet download

Do you already have an account? But I don’t see it on any of the A spec sheets. They Kenwood did the same thing in the kr manual.

I was able to get a look at dataasheet of them with a small lighted 2ea733. I appreciate the time you put into researching this. The two transistors being discussed are Q15, the 2sa Aand Q17, the 2sa On the face it says: The reference is from both the parts list and schematic of Kenwood KR Working on a Kenwood KR receiver and suspect one of these of being bad.

I have had a look around for this, trying to find references to the 2SAA as distinct from the 2SA and can’t find anything worthy of note. It is always purely related to higher voltage, not to higher current rating.


SA Transistor 2SA , Si-P, 60 V, A, W, MHz at reichelt elektronik

It is written just like in my OP. But they are only using it as a current limiter, and my datashewt is that it doesn’t mean anything, and is just a glitch that got into their computer. Discussion in ‘ Solid State ‘ started by roger2Aug 1, I downloaded the 2SA data sheet but it does not mention the A.

I’m sure it is not as good as those professional trade manuals that you have.

I have seen the adtasheet “cascoded” many times, just never seemed to have time to look it up. If you really need to replace it, just make sure that the voltage between C-B doesn’t exceed 60V, and between C-E doesn’t exceed 50V. Log in or Sign up.

HyperionAug 2, Also, there is no 2scA, just 2sc which is the normal complement of 2sa