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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The reference is from both the parts list and schematic of Datwsheet KR 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.
Now I know what it means, and the parts choices made by Kenwood make more sense based on your description.
2SA733 / A733 PNP Transistor
Is this transistor in a high gain position? Also, there is no datasheet, just 2sc which is the normal complement of 2sa Yes, my password is: Do you already have an account? Log in or Sign up. Discussion in ‘ Solid State ‘ started by roger2Aug 1, Here is the left channel of KR Turns out there was a 2scA, at least briefly.
In any case, a mystery is solved, and Eatasheet have learned a few things here. They Kenwood did the same thing in the kr manual. When I say in series I mean that the collector of the 2saA connects directly to the emitter of the 2sa The red voltage markings on the schema are by Kenwood.
Here is L channel, R is almost the same: My dafasheet 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. One channel was intermittent.
2SA Datasheet pdf – PNP General Purpose Amplifier – Fairchild Semiconductor
OilmasterAug 2, What does the A suffix mean? I was looking all over the web for ratasheet with no luck: Is this the VAS, or some other stage? HyperionAug 2, It is always purely related to higher voltage, not to higher current rating.
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 can’t see the faces of actual parts well enough to read. I’m sure it is not as good as those professional trade manuals that you have.
In several previous repair jobs, I failed to find the datasheets of such A version though. JURBAug 2, 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.
I poked around for a few hours, and could find no reference to the meaning of the A suffix. ZOOMAug datqsheet, They both had “halo” cracks in their solder joints. I am hesitant to remove them because I have already reflowed once.
No, create an account now. I actually had the datasheet for it on my PC.
Actually I found that one OK, just couldn’t find anything for the A version. 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.
But I don’t see it on any of the A spec sheets. Your name or email address: Good to know about the existence of those Japanese transistor data books too. I have seen the term “cascoded” many times, just never seemed to have time to look it up. After the reflow it straightened up almost 2sa73 Just replace with ksa and call it a day.
The “A” suffix means new and improved. It does show Q and P as being hfe ranges.