hacrat@athena.mit.edu (Nathaniel D. Osgood) (12/02/89)
I'm trying to find four electronic components for a friend; unfortunately, all I've been given are the *names* of the parts, and my friend isn't sure what they are. My hunch is that they're transistors, but a check of several parts catalogs hasn't turned up anything. Could anyone on this group tell me what these buggers are? C2335 C4242 C3306 Any hints would be enormously appreciated Nate Osgood
whit@milton.acs.washington.edu (John Whitmore) (12/02/89)
----- News saved at 2 Dec 89 02:18:16 GMT In article <1989Dec1.212852.6807@athena.mit.edu> hacrat@athena.mit.edu (Nathaniel D. Osgood) writes: >I'm trying to find four electronic components for a friend; > >C2335 >C4242 >C3306 > These are all Japanese transistor numbers, sometimes written 2SCnnnn; I have a cross-reference for the first, which is a NPN audio power transistor (replaceable by RCA SK9085 if you can find an SK-series dealer in your area). The second and third numbers aren't in my book (1985 edition) but a dealer who stocks SK parts can probably find them. All the Cnnnn parts are audio frequency NPN bipolar transistors, if that helps. Parenthetically, some such components are matched with diodes on the same heatsink, and replacements for such have to be exact. In addition to RCA SK series, Philips ECG series is a widely stocked consumer equipment semiconductor replacement line; check your phone book for either, under Electronic Equipment and Supplies. Newsgroups: Sci.Electronics Subject: Re: Anyone Recognize these part numbers? Summary: Expires: References: <1989Dec1.212852.6807@athena.mit.edu> Sender: Reply-To: whit@milton.acs.washington.edu (John Whitmore) Followup-To: Distribution: na Organization: University of Washington, Seattle Keywords: In article <1989Dec1.212852.6807@athena.mit.edu> hacrat@athena.mit.edu (Nathaniel D. Osgood) writes: >I'm trying to find four electronic components for a friend; > >C2335 >C4242 >C3306 > These are all Japanese transistor numbers, sometimes written 2SCnnnn; I have a cross-reference for the first, which is a NPN audio power transistor (replaceable by RCA SK9085 if you can find an SK-series dealer in your area). The second and third numbers aren't in my book (1985 edition) but a dealer who stocks SK parts can probably find them. All the Cnnnn parts are audio frequency NPN bipolar transistors, if that helps. Parenthetically, some such components are matched with diodes on the same heatsink, and replacements for such have to be exact. In addition to RCA SK series, Philips ECG series is a widely stocked consumer equipment semiconductor replacement line; check your phone book for either, under Electronic Equipment and Supplies.
aaron@cbnewsh.ATT.COM (aaron.michael.chesir) (12/04/89)
In article <1989Dec1.212852.6807@athena.mit.edu>, hacrat@athena.mit.edu (Nathaniel D. Osgood) writes: > I'm trying to find four electronic components for a friend; > Could anyone on this group tell me what these buggers are? > > C2335 > C4242 > C3306 I looked at me 1989 IC Master (catalogue of all chips) and it lists the CA3306 as a 6-bit A/D converter made by Harris Semiconductor. I find that with almost all chips, the first alphabetic characters usually imply ONLY the manufacturer. So I looked under 3306 and found the above. If I recall correctly, the prefix C (as in C3306) implies RCA. Hope this helps. Aaron Michael Chesir ..att!twitch!aaron AT&T Bell Labs 1-(201)-949-1530
brian@ucsd.Edu (Brian Kantor) (12/05/89)
In article <1989Dec1.212852.6807@athena.mit.edu>, hacrat@athena.mit.edu (Nathaniel D. Osgood) writes: > I'm trying to find four electronic components for a friend; > Could anyone on this group tell me what these buggers are? > > C2335 > C4242 > C3306 Japanese and Taiwan transistors are commonly marked this way; prepend 2S to the part number and try looking that up. I.e., 2SC2335, etc. It's often the case that you need to know what kind of component the device is before you can look it up properly; I've seen a transistor, a battery, and a light bulb with the same part number. - Brian
jones@hood (Clark Jones) (12/08/89)
In article <10303@ucsd.Edu> brian@ucsd.edu (Brian Kantor) writes: >In article <1989Dec1.212852.6807@athena.mit.edu>, hacrat@athena.mit.edu (Nathaniel D. Osgood) writes: >> I'm trying to find four electronic components for a friend; >> Could anyone on this group tell me what these buggers are? >> >> C2335 >> C4242 >> C3306 > >Japanese and Taiwan transistors are commonly marked this way; prepend 2S >to the part number and try looking that up. I.e., 2SC2335, etc. > >It's often the case that you need to know what kind of component the >device is before you can look it up properly; I've seen a transistor, a >battery, and a light bulb with the same part number. > - Brian An even more extreme case is "8008", which is either a primitive 8-bit CPU chip or a power triode with capabilities around 15KW at 175 MHz! The former sell for a couple of bucks, if you can find 'em, the latter are several hundred but are fairly common as a lot of TV stations use them for "finals". Clark Disclaimer: the opinions expressed above are mine and not those of Schlumberger because they are NOT covered by the patent agreement!