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For looking up data sheets, I kind of like this place:
You can give it partial numbers, and there is also a little switch for the way it searches for that string, specifically, "included", "start with", "end", "match".
Although I'm not sure if that switch actually does anything, or maybe I just always used the default, which is, "included"
Anyway, if you ask it to look for "D882", it just so happens that some of those results will be parts numbers that include "2SD882", and I guess that's the uh, sort of, generic name for this transistor.
By the way, I would not have guessed this myself, if I had not read the previous answers by Joseph Murchison and ThirdEarthDesign. Honestly I think it kind of takes some insight into transistor names, to make the leap:
BQD882 == D882 == 2SD882
Although maybe I should have known it is a common practice to omit the "2S" part of the name, when they print it on the transistor. In fact, now that I've read about it in the Wikipedia article for "Transistor", in the section titled, "Part numbering standards/specifications",
well, here's the blurb:
The JIS-C-7012 specification for transistor part numbers starts with "2S", e.g. 2SD965, but sometimes the "2S" prefix is not marked on the package – a 2SD965 might only be marked "D965"; a 2SC1815 might be listed by a supplier as simply "C1815"
So. Yeah. That's how we make the leap from D882 to 2SD882.
I mpticed quite often on cheap electronics that "exotic" transistors are often dirt cheap standard types - just from some even cheaper supplier.But I agree it often takes some guesswork and comparing results to find the right match.Sometimes it is obvious though, like when looking for a small transistor and some results bring up 20A bricks...
You know, I think this is something I never really understood before.
I mean, I have seen transistors on junked consumer electronics, full of TO-92 sized transistors with labels like "A733", "C945", "C102", and in the past I had no idea regarding the identity of these.
If most of these are members of the "2S" family, you know, "2SA733", "2SC945", "2SC102", respectively, well that helps a lot. I mean these example transistor names, are printed on transistors I just observed just now, on a junked circuit board in my possession, from a CRT monitor.
Which tells anyone reading this, I have some trouble with throwing junk away, or rather trouble with not throwing junk away.
But at least now I know more about some of the parts populating these junk boards I can't throw away.
And knowing is half the battle! Or maybe knowing is half the hassle. Or something like that. There's probably some truth in both those statements.
BQ is the maker.
A lot of makers do not put the full prefix on transistors.
That is a 2SD882 NPN transistor NPN
2SB772 is its complementary PNP
You can get the datasheet here, http://www.maxim4u.com/
ThirdEarthDesign has the right Datasheet even though the transistor looks different.
I found this datasheet for a D882 NPN transistor:
A question about a D8882 has also been asked here before:
Fun with transistors
Building Logic Gates using NPN Transistors
Transistors: Things You Need to Know About These
PCB's: Can I Get Rid Of That #^%$! Top Layer Trace?
Basic Transistor Tuturial
Simple Transistor Tester
Joule thief powered lamp
HOW TO TEST YOUR TRANSISTORS WITH YOUR MULTIMETERS
Laser Perimeter Alarm
Posted:Jan 30, 2017
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