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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
Posted to sci.electronics.components,sci.electronics.repair
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Cap ID & value?
Trying to determine type of caps these three are so as to find replacements.
Any help would be greatly appreciated. In the case that the identical type (ie, tantalum, etc.) is not available locally, what type can I use to replace these? I have this selection to choose from at my local electronics shop: - monolythic ceramic - ceramic Disc - dipped tantalum and a limited selection of: - dipped silver mica (metallized polyester film) - mylar (metallized polyester) If these are inappropriate as replacements, I'll order the appropriate ones, but would like to get this fixed today. These caps are used on a car alarm PCB (not in the RF stage). (All of these caps are "tubular" in shape; no vertical height, per se.) - - - First unknown is he http://us.f13.yahoofs.com/bc/4404892....jpg?bfyjJBEB4 LTzgM2b Markings: 104K K5R 100000pF ? Unpolarized. What's "K5R" ? - - - Second unknown is he http://us.f13.yahoofs.com/bc/4404892....jpg?bfyjJBEBu KtifpMu Markings: 474K +35M 470000pF ? 35v ? Presume "+" indicates polarity. - - - Third unknown is he http://us.f13.yahoofs.com/bc/4404892....jpg?bfyjJBEBi 5f.AUtB I have the color codes and can figure out the values, but what type of cap is this? A fourth type is similar to this type, but has a pink background. - - - Thanks, -- DaveC This is an invalid return address Please reply in the news group |
#2
Posted to sci.electronics.components,sci.electronics.repair
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Cap ID & value?
"DaveC" wrote in message news.net... Trying to determine type of caps these three are so as to find replacements. Any help would be greatly appreciated. 15 seconds of effort on Google and you'll have all of your answers. |
#3
Posted to sci.electronics.components,sci.electronics.repair
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Cap ID & value?
Thus spake Dave:
15 seconds of effort on Google and you'll have all of your answers. That is a worthless statement. Why do you think that we all have the same abilities or experience to Google this topic? It all depends on what terms you use. You apparently use more accurate terms, as I have spend much time searching and find no answer. Not being an expert at this topic, I'm wasting much more than 15 seconds to find the meagre results I came up with. At what point to you ask yourself "Someone must know this answer." Should we all not use USENET at all? What the hell is its purpose if not to ask questions? At what point do I ask for help? If you can't answer the question ASKED, don't bother to reply. -- DaveC This is an invalid return address Please reply in the news group |
#4
Posted to sci.electronics.components,sci.electronics.repair
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Cap ID & value?
DaveC wrote:
Thus spake Dave: 15 seconds of effort on Google and you'll have all of your answers. That is a worthless statement. Why do you think that we all have the same abilities or experience to Google this topic? It all depends on what terms you use. You apparently use more accurate terms, as I have spend much time searching and find no answer. Not being an expert at this topic, I'm wasting much more than 15 seconds to find the meagre results I came up with. At what point to you ask yourself "Someone must know this answer." Should we all not use USENET at all? What the hell is its purpose if not to ask questions? At what point do I ask for help? Google on "capacitor markings" You're welcome. |
#5
Posted to sci.electronics.components,sci.electronics.repair
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Cap ID & value?
"DaveC" wrote in message news.net... Thus spake Dave: 15 seconds of effort on Google and you'll have all of your answers. That is a worthless statement. Why do you think that we all have the same abilities or experience to this topic? It all depends on what terms you use. You apparently use more accurate terms, as I have spend much time searching and find no answer. Not being an expert at this topic, I'm wasting much more than 15 seconds to find the meagre results I came up with. At what point to you ask yourself "Someone must know this answer." Should we all not use USENET at all? What the hell is its purpose if not to ask questions? At what point do I ask for help? "Capacitor identification" keyed into Google search = 437,000 hits. Dare I ask what you were using for search terms? If you are too lazy or stupid to perform the above, I am not inclined to spoon-feed you. Sorry. |
#6
Posted to sci.electronics.components,sci.electronics.repair
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Cap ID & value?
Dave wrote:
Dare I ask what you were using for search terms? If you are too lazy or stupid to perform the above, I am not inclined to spoon-feed you. Obviously you are too lazy to read my post. PLONK. |
#7
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Cap ID & value?
Travis Jordan wrote:
Dave wrote: Dare I ask what you were using for search terms? If you are too lazy or stupid to perform the above, I am not inclined to spoon-feed you. Obviously you are too lazy to read my post. Ooops - sorry Dave, I thought you were DaveC. My apologies. BTW, when I Google on ""Capacitor identification" I get: Results 1 - 20 of about 647 English pages for "Capacitor identification". (0.12 seconds) |
#8
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Cap ID & value?
Thus spake Dave:
"Capacitor identification" keyed into Google search = 437,000 hits. Most of the first page of these hits are all about capacitor value determination (markings decode), nothing that can tell me what KIND these caps are. Anyone help me find out what kind these caps are? Thanks, -- DaveC This is an invalid return address Please reply in the news group |
#9
Posted to sci.electronics.components,sci.electronics.repair
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Cap ID & value?
DaveC wrote:
Anyone help me find out what kind these caps are? Read my post again. |
#10
Posted to sci.electronics.components,sci.electronics.repair
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Cap ID & value?
Thus spake Travis Jordan:
Read my post again. I did. Prior to my last post I Googled with your terms. I find lots and lots of "how to decode cap markings" but nothing to help me identify the KIND of caps these are. These may very well be tantalum or ceramic or poly-something, or some other kind that is shown on these pages, but they sure don't look like them. If I'm missing something, please help. If all you have time to do is call names and insult, don't bother. -- DaveC This is an invalid return address Please reply in the news group |
#11
Posted to sci.electronics.components,sci.electronics.repair
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Cap ID & value?
DaveC wrote:
Thus spake Travis Jordan: Read my post again. I did. Prior to my last post I Googled with your terms. I find lots and lots of "how to decode cap markings" but nothing to help me identify the KIND of caps these are. These may very well be tantalum or ceramic or poly-something, or some other kind that is shown on these pages, but they sure don't look like them. If I'm missing something, please help. If all you have time to do is call names and insult, don't bother. I think you are missing the " (quotes). The very first link that Google returns is what you need. |
#12
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Cap ID & value?
Can't look at pics, says not authorized. How about uploading them to
Imageshack - http://www.imageshack.us/ - and putting the links here? |
#13
Posted to sci.electronics.components,sci.electronics.repair
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Cap ID & value?
I think you are missing the " (quotes).
The very first link that Google returns is what you need. http://www.electronics2000.co.uk/ There's nothing on that site re. cap. identification other than some info on decoding markings. The TYPE markings don't correspond to anything on these caps. -- DaveC This is an invalid return address Please reply in the news group |
#14
Posted to sci.electronics.components,sci.electronics.repair
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Cap ID & value?
On Wed, 01 Mar 2006 03:13:24 GMT, Alan
wrote: On Tue, 28 Feb 2006 10:32:36 -0800, DaveC wrote: Trying to determine type of caps these three are so as to find replacements. Any help would be greatly appreciated. In the case that the identical type (ie, tantalum, etc.) is not available locally, what type can I use to replace these? I have this selection to choose from at my local electronics shop: - monolythic ceramic - ceramic Disc - dipped tantalum and a limited selection of: - dipped silver mica (metallized polyester film) - mylar (metallized polyester) If these are inappropriate as replacements, I'll order the appropriate ones, but would like to get this fixed today. These caps are used on a car alarm PCB (not in the RF stage). (All of these caps are "tubular" in shape; no vertical height, per se.) - - - First unknown is he http://us.f13.yahoofs.com/bc/4404892....jpg?bfyjJBEB4 LTzgM2b Markings: 104K K5R 100000pF ? Unpolarized. What's "K5R" ? - - - Second unknown is he http://us.f13.yahoofs.com/bc/4404892....jpg?bfyjJBEBu KtifpMu Markings: 474K +35M 470000pF ? 35v ? Presume "+" indicates polarity. - - - Third unknown is he http://us.f13.yahoofs.com/bc/4404892....jpg?bfyjJBEBi 5f.AUtB I have the color codes and can figure out the values, but what type of cap is this? A fourth type is similar to this type, but has a pink background. - - - Thanks, I'm afraid your going to have to get out a general component supplier catalogue and look at the pretty pictures! The 104K refers to the value (100000pf) and the temp co-efficient. The K5R is the dielectric used in the manufacture of the cap +35M is the working voltage - not sure of the M. But you really need to find the manufacturer (by looking for similar pictures) and then search their site for caps that match the ones youve got. By the way I can't access your pictures (even when I fix for the word-wrap). Alan Sorry that should read: The 104K refers to the value (100000pf) and the tolerance (10%). The K5R is the dielectric used in the manufacture of the cap +35M is the working voltage M = 20% tolerance. Alan -- Sell your surplus electronic components at http://ozcomponents.com Search or browse for that IC, capacitor, crystal or other component you need. |
#15
Posted to sci.electronics.components,sci.electronics.repair
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Cap ID & value?
DaveC wrote:
Trying to determine type of caps these three are so as to find replacements. Any help would be greatly appreciated. In the case that the identical type (ie, tantalum, etc.) is not available locally, what type can I use to replace these? I have this selection to choose from at my local electronics shop: - monolythic ceramic - ceramic Disc - dipped tantalum and a limited selection of: - dipped silver mica (metallized polyester film) - mylar (metallized polyester) If these are inappropriate as replacements, I'll order the appropriate ones, but would like to get this fixed today. These caps are used on a car alarm PCB (not in the RF stage). (All of these caps are "tubular" in shape; no vertical height, per se.) - - - First unknown is he http://us.f13.yahoofs.com/bc/4404892....jpg?bfyjJBEB4 LTzgM2b Markings: 104K K5R 100000pF ? Unpolarized. What's "K5R" ? - - - Second unknown is he http://us.f13.yahoofs.com/bc/4404892....jpg?bfyjJBEBu KtifpMu Markings: 474K +35M 470000pF ? 35v ? Presume "+" indicates polarity. - - - Third unknown is he http://us.f13.yahoofs.com/bc/4404892....jpg?bfyjJBEBi 5f.AUtB I have the color codes and can figure out the values, but what type of cap is this? A fourth type is similar to this type, but has a pink background. - - - Thanks, I can't get to the urls you posted (I get a yahoo forbidden, even when I avoid the line wrap). In all probability the type is non-critical. You could probably use anything in a plastic film or ceramic of the right value, but choose whatever you can get with the highest temperature rating. In a car, things can get hot. Ed |
#16
Posted to sci.electronics.components,sci.electronics.repair
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Cap ID & value?
"DaveC" wrote in message news.net... I think you are missing the " (quotes). The very first link that Google returns is what you need. http://www.electronics2000.co.uk/ There's nothing on that site re. cap. identification other than some info on decoding markings. The TYPE markings don't correspond to anything on these caps. -- DaveC This is an invalid return address Please reply in the news group http://www.uoguelph.ca/~antoon/gadgets/caps/caps.html Approximately 30 seconds of searching. You're welcome. |
#17
Posted to sci.electronics.repair,sci.electronics.components
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New photo links!
Thus spake Ross Herbert:
For a start, all 3 Yahoo links to your pics return Forbidden. ie. can't get access to the pics because I am not authorised to view the pages. Therefore, it is difficult for anyone to see exactly what the caps look like. Sorry for the bogus links. When I tested them they worked for me (doncha hate that?). Apparently Yahoo allows "storage" of files for my retrieval only. What's that about? Here's my original post with good links. Thanks for your help. - - - Trying to determine type of caps these three are so as to find replacements. Any help would be greatly appreciated. In the case that the identical type (ie, tantalum, etc.) is not available locally, what type can I use to replace these? I have this selection to choose from at my local electronics shop: - monolythic ceramic - ceramic Disc - dipped tantalum and a limited selection of: - dipped silver mica (metallized polyester film) - mylar (metallized polyester) If these are inappropriate as replacements, I'll order the appropriate ones, but would like to get this fixed today. These caps are used on a car alarm PCB (not in the RF stage). (All of these caps are "tubular" in shape; no vertical height, per se.) - - - First unknown is he http://www.hostmypic.info/uploads/fbfaf28704.jpg Markings: 104K K5R 100000pF ? Unpolarized. What's "K5R" ? - - - Second unknown is he http://www.hostmypic.info/uploads/c5935b8518.jpg Markings: 474K +35M 470000pF ? 35v ? Presume "+" indicates polarity. - - - Third unknown is he http://www.hostmypic.info/uploads/5706cea606.jpg This is ceramic (axial), yes? -- DaveC This is an invalid return address Please reply in the news group |
#18
Posted to sci.electronics.repair,sci.electronics.components
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New photo links!
"DaveC" wrote in message news.net... Thus spake Ross Herbert: For a start, all 3 Yahoo links to your pics return Forbidden. ie. can't get access to the pics because I am not authorised to view the pages. Therefore, it is difficult for anyone to see exactly what the caps look like. Sorry for the bogus links. When I tested them they worked for me (doncha hate that?). Apparently Yahoo allows "storage" of files for my retrieval only. What's that about? Here's my original post with good links. Thanks for your help. - - - Trying to determine type of caps these three are so as to find replacements. Any help would be greatly appreciated. In the case that the identical type (ie, tantalum, etc.) is not available locally, what type can I use to replace these? I have this selection to choose from at my local electronics shop: - monolythic ceramic - ceramic Disc - dipped tantalum and a limited selection of: - dipped silver mica (metallized polyester film) - mylar (metallized polyester) If these are inappropriate as replacements, I'll order the appropriate ones, but would like to get this fixed today. These caps are used on a car alarm PCB (not in the RF stage). (All of these caps are "tubular" in shape; no vertical height, per se.) - - - First unknown is he http://www.hostmypic.info/uploads/fbfaf28704.jpg Markings: 104K K5R Cap look like a Tantalum. Value looks like .1 uf 100000pF ? Unpolarized. What's "K5R" ? - - - Second unknown is he http://www.hostmypic.info/uploads/c5935b8518.jpg Markings: 474K +35M That looks like a monolithic. Value looks like .47 uf 470000pF ? 35v ? Presume "+" indicates polarity. - - - Third unknown is he http://www.hostmypic.info/uploads/5706cea606.jpg The item in the middle of the pic looks like a resistor. Off to the right looks like a monolithic. Why are you replacing these parts? The cap types pictured typically don't change value like an electrolytic would in the heat of a car. In fact, both monolithic, and tantalum caps have a habit of failing shorted, followed by open if there's enough current. They are then easy to find ; ) This is ceramic (axial), yes? -- DaveC This is an invalid return address Please reply in the news group |
#19
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Cap ID & value?
Thus spake ehsjr:
I can't get to the urls you posted (I get a yahoo forbidden, even when I avoid the line wrap). In all probability the type is non-critical. You could probably use anything in a plastic film or ceramic of the right value, but choose whatever you can get with the highest temperature rating. In a car, things can get hot. Ed -=-=-=- Thanks for your reply, Ed. The first of the caps has a tapered end which I presume is some kind of polarity indication. (See my new post with correct links to photos.) Doesn't this make it some kind of electrolytic? Or tantalum? -- DaveC This is an invalid return address Please reply in the news group |
#20
Posted to sci.electronics.repair
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Cap ID & value?
Why don`t you just take that cap that you have to your local parts
store and ask them to match you up to the right one or even go to your local radioshack to see if they can help you. It is obvious that we cannot see your cap to tell you what it is to be able to help you in the way that you would like to be helped. Plus why are you replacing these caps if you don`t know what type they are and if that is the case how do you know that these caps are bad ???? |
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