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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What does the A suffix mean? But they are only using it as a current limiter, and my opinion is that it doesn’t mean anything, and is just a glitch that got into their computer. JURBAug 2, Is this the VAS, or some other stage? Working on a Kenwood KR 2sa73 and suspect one of these of being bad.

what does (A) suffix mean in 2SA733 (A) (Q,P) ???

Where did you come up with a 2SAA? After the reflow it straightened up almost completely In several previous repair jobs, I failed to find the datasheets of such A version though.

Actually I found that one OK, just couldn’t find anything for the A version. The “A” suffix usually designates a higher voltage rating. ZOOM, I am asking what the “A” suffix for 2sa means because I want to know what type of part the designers had in mind for this position in the amp.


2SA733 Datasheet, Equivalent, Cross Reference Search

Yes, my password is: Also, there is no 2scA, just 2sc which is the normal complement of 2sa 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.

I was able to get a look at one of them with daasheet small lighted magnifier.

ZOOMAug 2, I was looking all over the web for 2saA with no luck: It is always purely related to higher voltage, not to higher current rating. Inquiring minds want to know things.

I can’t see the faces of actual parts well enough to read. Good to know about the existence of those Japanese transistor data books too. Here is L channel, R is almost the same: The red voltage markings on the schema are by Kenwood. It is written just like in my OP.

It does show Q and P as being hfe ranges. I downloaded the 2SA data sheet but it does not mention the 2da733. They both had “halo” cracks in their solder joints. I actually had the datasheet for it on my PC. I appreciate the time you put into researching this. Highly unlikely to be of much relevance.

2SA Datasheet(PDF) – Tiger Electronic Co.,Ltd

When I say in series I mean that the collector of the 2saA connects directly to the emitter of the 2sa 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.


The two transistors being discussed are Q15, the 2sa Aand Q17, the 2sa Just replace with ksa and call it a day. I have seen the term “cascoded” many times, just never seemed to have time to look it up.

But I don’t see it on any of the A spec sheets. Is this transistor in a high gain position?

Guangdong Hottech 2SA – PDF Datasheet – Transistors (NPN/PNP) In Stock |

Turns out there was a 2scA, at least briefly. I am hesitant to remove them because I have already reflowed once. Datashet channel was intermittent. You must log in or sign up to reply here. In any case, a mystery is solved, and I have learned s2a733 few things here. Now I know what it means, and the parts choices made by Kenwood make more sense based on your description.

Your name or email address: On the 2sa7333 it says: 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. Share This Page Tweet.

HyperionAug 2, Discussion in ‘ Solid State ‘ started by roger2Aug 1,