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| What do this cap's identifications mean |
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| cowasaki:
Just ordering some parts for my HP3582A and I missed a few bits so need to order them too... This part is confusing me I took it as a small cap (and it doesn't appear to be polarised) but it says (it's tiny maybe just over a cm - images via my scope) 2nd picture is the board it is off. There are 5 of these on the board but I have yet to take the others off. KEMET 2R2uF. - The value but 2R2uF ?? 2.2uF?? what's with the R? 35V10% - obviously 35 volts and 10% tolerance 82041M - probably date code of 41day of 82 or something +T110 - No idea Any ideas? |
| cowasaki:
The power board is a little different in the service manual but having just found the board (the service manual is rather large) that can is shown as 4u7 so I'm guessing that my guess of 2u2 was probably correct for my revision board and it is a non polarised cap. I tests as a 2uF cap as well so I've stuck it back in in the same orientation just in case. |
| SeanB:
2.2uF 35V glass seal tantalum capacitor. No need to replace, as they will literally last for a few decades, seeing as they all come space rated from Kemet. Just check if they are short circuit, but otherwise they last forever. |
| Gyro:
Yes, those are 2u2 35v (dry) Tantalums. They're hermetic, unlike the bead ones, so are generally very reliable! [Ed: Snap!] |
| TimFox:
"R" in the middle of an expression such as 2R2 indicates a decimal point. It is a convention, common in military specifications, and is far easier to read on a small component than a ".". |
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