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15K250 Capacitor

Am I correct in assuming that a Cap marked 15K250 would be a .15uf 250 cap? This one is actually marked with a .15K250, but I think the dot may be a polarity indicator. The part also has a stylized A with a Slash attached to it (kinda like A/), and an R79 beneath that logo.

This is a cap from an LCD inverter board in a NEC monitor. Inverter board is part number is TAD585-1 / EA12585T and the cap is ID'ed as C13 and C17. This unit lights the backlight briefly, then goes out. I found on the net that the caps on the primary may be leaky and will cause the failure.

Any help is appreciated.

Thanks

- Tim -

Reply to
Tim
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Try news:sci.electronics.repair

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Michael A. Terrell
Central Florida
Reply to
Michael A. Terrell

15k would be 15000 pico farad which is .015 microfarad at 250 volt.
Reply to
James Thompson

No polarity. The dot is indeed the decimal point.

Tim

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Deep Fryer: a very philosophical monk.
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Reply to
Tim Williams

Tim schrieb:

That sounds more like a varistor (VDR) to me, not a capacitor.

Tilmann

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http://www.autometer.de - Elektronik nach Maß.
Reply to
Tilmann Reh

No it doesn't.

Graham

Reply to
Eeyore

Well if that's correct then these caps are really bad. I get .15uf (150nf) on my home brew cap meter. It would be great if that was the case tho, as it would be an easy fix. Someone else replied that the dot was a decimal point making the part id .15k250. Would that be possible?

Thanks for helping me out with this fix.

- Tim -

Reply to
Tim

Tim schrieb:

I carefully re-read your OP - I was first mislead by your mentioning of R79 (thought it was in the board), and since you didn't specify a case size or type, it could as well have been a disk varistor (15 mm diameter, 250 volts). Hint: a picture says more than 1000 words.

However, if the dot is really clearly visible, I think it is a capacitor with 150nF and 250V. The logo should be that which arcotronics

formatting link
prints on their caps (though it's not on the homepage). There you can also find the data sheet of the R79 polypropylene series. I cant provide a direct link since it's accessible only by frames and javascript...

The K is the tolerance rating (10%).

Tilmann

--
http://www.autometer.de - Elektronik nach Maß.
Reply to
Tilmann Reh

OK, Here is a pic of the little critter.....

Reply to
Tim

This is not a binaries newsgroup. You can post it to news:alt.binaries.schematics.electronic by attaching it as a GIF, JPEG, or other common image file. Then, post a message here giving the name of the post. If you try to post a binary file here, most people will never see it.

--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
Reply to
Michael A. Terrell

OK, hard to tell without seeing. But if you see a cap that clearly has a dot before the number, then it is most like written in microfarad. So you're reading of .15UF is going to be right, and your cap meter is telling you true.

Reply to
James Thompson

You can't post binaries here.

Use alt.binaries.schematics.electronics.

Graham

Reply to
Eeyore

Certainly sounds like it to me.

Graham

Reply to
Eeyore

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