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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JURBAug 2, Actually I found that one OK, just couldn’t find anything for the A version. Here is L channel, R is almost the same: My go to for older transistor or semi-conductor info is datasheetarchive. 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.

2SA NEC PNP SILICON TRANSISTOR ChipFind Datasheet Archive |

Share This Page Tweet. On the face it says: 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. They Kenwood did the same thing in the kr manual. Where did you come up with a 2SAA? You must log in or sign up to reply here. Then I heard another brief cut-out.

The “A” suffix usually designates a higher voltage rating.


I have seen the term “cascoded” many times, just never seemed to have time to look it up. Now I know what it means, and the parts choices made by Kenwood make more sense based on your description. They both had “halo” cracks in their solder joints.

Datasheet «2SA733»

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. I can’t see the faces of actual parts well enough to read. Turns out there was a 2scA, at least briefly.

Just replace with ksa and call it a day. I downloaded the 2SA data sheet but it does not mention the A. The reference is from both the parts list and schematic of Kenwood KR 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.

I actually had the datasheet for it on my PC. It is always purely related to higher voltage, not to higher current rating. JURB – Thanks for the detailed explanation of transistor designations. JURB – thanks for taking the time to type in those specs for the non-A 2sa Yes, my password is: ZOOMAug 2, But I don’t see it on any of the A spec sheets. Good to know about the existence of those Japanese transistor data books too.

2SA Datasheet pdf – PNP General Purpose Amplifier – Fairchild Semiconductor

I was able to get a look at one of them with a small lighted magnifier. In any case, a mystery is solved, and I have learned a few things here. Discussion in ‘ Solid State ‘ started by roger2Aug 1, HyperionAug 2, The red voltage markings on the schema are by Datasheett.


Working datxsheet a Kenwood KR receiver and suspect one of these of being bad. Thanks again to all Is this the VAS, or some other stage?

What does the A suffix mean? I’m sure it is not as good as those professional trade manuals that you have. Here is the left channel of KR Is this transistor in a high gain position? They are also in series? I appreciate the time you put into researching this. After the reflow it straightened up almost completely I was looking all over the web for 2saA with no luck: Highly unlikely to be of much relevance.

2SA733 / A733 PNP Transistor

No, create an account now. It does show Q and P as being hfe ranges. When I say in series I mean that the collector of the 2saA connects directly to the emitter of the 2sa It is written just like in my OP.