Hi there guys and gals. Just bought a huge lot of electeonic parts online and while I dont usually buy N.O.S. electrolytic caps, I have around 500 of the blue and yellow caps. About 40 of rhe black box. They came with no paperwork and was hopeing some of you fine folks could help me identify them. Blue electro is 220u@63v. MLCC type measured 270pF. The black box type measures 5uF but the marks say 475 (4u7). Any help would be greatly appreciated. Trying to figure out the manufacturer along with the voltage rating.
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Capacitor(s) Identification
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Re: Capacitor(s) Identification
The yellow discs may be Metal Oxide Varistors (MOVs). The markings are unlike what would be typical for ceramic capacitors.PeteS in CA
Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
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Re: Capacitor(s) Identification
I've not seen anything like those black boxes with the colored dots, and I've been interested in electronics since high school, Nixon's first term as President.
I'm going to guess those MOVs R_J identified are intended for telephone line surge protection.
Axial lead electrolytic caps (first picture) are usually general purpose or maybe non-polarized.PeteS in CA
Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
****************************
To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
****************************
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Re: Capacitor(s) Identification
Originally posted by stj View Postthe black ones look like some pre-ww2 stuff from "mr carlson's lab"
they are probably mica or foil.
But not in about 50 years.PeteS in CA
Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
****************************
To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
****************************
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Re: Capacitor(s) Identification
Sorry if I use this already open thread to ask about these caps, specially the yellow and blue ones (I know their values, but not the type)...
The yellow is a 100nF (10% tol.) but that "50SN (in circle)" I couldn't identify.
The blue is a 2.2F, but that "F" and "ND" I also couldn't identify.
Not sure from where they came originally, probably a CD player (yellow) or from a PSU (blue), but I'm not sure...
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Re: Capacitor(s) Identification
Originally posted by Cap_search View PostSorry if I use this already open thread to ask about these caps, specially the yellow and blue ones (I know their values, but not the type)...
The yellow is a 100nF (10% tol.) but that "50SN (in circle)" I couldn't identify.
The blue is a 2.2F, but that "F" and "ND" I also couldn't identify.
Not sure from where they came originally, probably a CD player (yellow) or from a PSU (blue), but I'm not sure...
The other two are both .1uF (10 x 10^4 pF), +/-10% ("K"), film caps. The brown part is probably Panasonic and polyester film.PeteS in CA
Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
****************************
To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
****************************
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Re: Capacitor(s) Identification
Originally posted by PeteS in CA View PostThe larger blue cap is probably 2.2uF, 100V, either monolythic ceramic or film. If it's a film cap it's probably polyester film.
The other two are both .1uF (10 x 10^4 pF), +/-10% ("K"), film caps. The brown part is probably Panasonic and polyester film.
Do you think the yellow one is a metallized paper cap, or it's too small for that?
Regards.
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Re: Capacitor(s) Identification
Originally posted by PeteS in CA View PostI've seen older military style mica caps that look like this:
But not in about 50 years.
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