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2SA datasheet, 2SA circuit, 2SA data sheet: HITACHI – Silicon PNP Epitaxial,alldatasheet, datasheet, Datasheet search site for Electronic. 2SA Datasheet, 2SA PNP Low Frequency Transistor Datasheet, buy 2SA Transistor. 2SA, PNP 2SA, 2SA PNP Low Frequency Transistor, buy 2SA RoHS Compliant, -. Package Type, TO Technical Data, 2SA Datasheet.

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Per datasheets available online they are both center collector 2sa http: Yeah, that’s a reason I I’m looking at the other board.

2SA datasheet, Pinout ,application circuits Silicon PNP Epitaxial

Log in or Sign up. You must log in or sign up to reply here. You need the collector in the center. Qe 2sa are your differential pairs. Thank you very much for any help on this!

The a also says “5E C4”. I was wondering if someone would bring that up. I’m getting conflicting information about a replacement. SoundOfSoundJan 11, Your name or email address: I bought a rather hacked KR with blown outputs on the left channel.


I have spent a fair amount of time searching the forum for subs, but am hoping someone can look over my list and point out errors, make better recommendations, or comment otherwise.

Do you already have an account? My understanding is that Kenwood and likely others used what they could get their hands on at the time. Can you determine if Qe 7,8 have the collector or the base at the center pin. On the board I’m working on, Qe7 says a and Qe8 says a and both are very obvious poorly done replacements.

This package is a TO and the other one has a TO I really appreciate your taking the time to help me with this. Here are the datasheets for the outputs. I’m also hoping someone can point out which are the differential pairs so that I can order a bunch of them to match them up.

Hitachi Semiconductor

22sa872 Lots of room for those. Am i correct in assuming “2s” should be in front of those? Curious what you think about my selection on those. Yea GR it looks like. I can order the caps myself, but need some help with the transistors. Yes, 2s There are replacements but you have to be sure if the center is a base or datasheey collector. A previous owner has butchered this thing badly picture daatsheet with all sorts of oddball replacements and beautiful soldering, so I would like to start over.


Discussion in ‘ DIY ‘ started by gort69Jan 11, Yes, my password is: Those two transistors simply have “A” printed on them – I’m assuming they are 2sa You have Qe 7,8 as 2sa but on the schematic it says 2sa WB. The a also says “GR 5K”.

Datasheet «2SA872»

Are those Qe the drivers? I asked a question about the outputs earlier today.

As you can tell I’m new to this. I would like to replace all of the transistors on the power amp board. Is a TO bigger than a TO?