Anther thread about CAPS

[WhoGivesAPluck]

Get it the caps, also it's in CAPS? no, it's not important. what is is that you're reading this! hahaha, ahem. but really, I'm a bit confused about this, I bought some 0.47 caps, but I also bought some 0.047 caps, are those the same? also with 0.1 caps, are those the same as 0.01uF? do they use different names on them? like 0.1 MK is that different? does that make 0.01uF the same as 0.1MF ??

 

[beaubrummels]

Re: Anther thread about CAPS

They are NOT the same. However, your example is missing the unit, so it's hard to say. .01 microfarad, mfd, or uF is not the same as 0.1 microfarad, of course.

I've never seen MK, I don't know what that is.

The markings on them will often seem misleading.
http://www.elecraft.com/Apps/caps.htm

 

[Artie]

Re: Anther thread about CAPS

The three main units are micro, nano, and pico. But for some reason, they never use nano in caps. So a .022uf cap is the same as a 22,000pf cap which is sometimes designated as 223. Two significant digits and then the last number meaning the number of zeros.

It can be confusing.

 

[uOpt]

Re: Anther thread about CAPS

Americans always swallow up the units, misname them and randomly omit zeros.

The correct value is 47 nF (nano) or 0.047 uF (micro). Unfortunately some have gotten into the habits of #1 abbreviating micro which should be µ and is "u" when the greek character is not available as "m", although "m" is defined as standing for "milli" which is 1000x of micro. In addition the zero after the dot is often AWOL, and for some reason people feel free to s/0.047/47/ without changing the prefix.

Chances are all of yours are the right value.

 

[Myaccount876]

Re: Anther thread about CAPS

No, you'd be off by about 1000 units/one decimal place.

uF/μF/mF/MFD are all the symbols for microfarads.

There's 1,000 nanofarads in 1 microfarad, and there's 1,000 picofarads in 1 nanofarad.

1 uF = 1,000 nF

1 uF = 1,000,000 pF

.047 uF = 47 nanofarads/47,000 picofarads

.01 uF = 10 nanofarads/10,000 picofarads

The last letter (such as "K") is usually the tolerance code. K would mean +/- 10% tolerance on the indicated value. 0.1 MK would be 0.1 uF/100 nF/100,000 pF with a tolerance of 10%.

 

[uOpt]

Re: Anther thread about CAPS

uF/μF/mF/MFD are all the symbols for microfarads.

Then what do you use for millifarads and megafarads?

Things you only see in America

 

[GuitarStv]

Re: Anther thread about CAPS

Good luck fitting a mega-farad capacitor in something smaller than a truck.

 

[Myaccount876]

Re: Anther thread about CAPS

Then what do you use for millifarads and megafarads?

Things you only see in America

Just another thing we get wrong (like round door knobs right?). I've seen all of those symbols at electronic component shops (and they do actually know their stuff - they just don't even have millifarad or megafarad capacitors to confuse with uF capacitors), and they all meant "microfarad". But hey, I learn something new everyday.

 

[uOpt]

Re: Anther thread about CAPS

I really wonder what's worse, German taxes or American unit messes. Life choices...

Hey at least Americans use international and consistent and combinable units for electronic component values, unlike for things that blow up space rockets.

 

[Edgecrusher]

Re: Anther thread about CAPS

I really wonder what's worse, German taxes or American unit messes. Life choices...

Hey at least Americans use international and consistent and combinable units for electronic component values, unlike for things that blow up space rockets.

Since the EU has been so successful at building Mars probes... What happened to Beagle 2? Why does no one talk about the success of the Mars Exploration Rovers, Spirit was designed to run a 90 day mission it turned into 6 years.

 

[Davii]

Re: Anther thread about CAPS

It definitely can get confusing, but I've found the confusion has more to do with venders (for example, Maplin) being inconsitent when they present info online, or in their catalogues. I find a lot of wiring diagrams tend to assume you know what division type you're looking at too, which doesn't help. Then, there's the squinting like crazy whilst attempting to read a value off the component itself. Always a joy that last one :-S

That said, I've not come across any real issue with markings used in different countries(?)

 

[uOpt]

Re: Anther thread about CAPS

That said, I've not come across any real issue with markings used in different countries(?)

The marking on the components are fine. It is people casually talking about them and websites having them entered into the catalog by people who don't care.

 

[Davii]

Re: Anther thread about CAPS

The marking on the components are fine. It is people casually talking about them and websites having them entered into the catalog by people who don't care.

Ah ok. Yeah, I've come across that for a whole host of things in online shops.

 

[marcello252]

Re: Anther thread about CAPS

Since the EU has been so successful at building Mars probes... What happened to Beagle 2? Why does no one talk about the success of the Mars Exploration Rovers, Spirit was designed to run a 90 day mission it turned into 6 years.

sterile discussion, you're way richer in space investment and you have a huge experience. Start accepting there is a international system to make measures and it's not imperial, it's called decimal metric system, stop using inches for example (how come you used a 12 based unit? we have 10 fingers, not 12).

 

[Edgecrusher]

Re: Anther thread about CAPS

sterile discussion, you're way richer in space investment and you have a huge experience. Start accepting there is a international system to make measures and it's not imperial, it's called decimal metric system, stop using inches for example (how come you used a 12 based unit? we have 10 fingers, not 12).

Please dont direct this at me... Iam not the embodiment of america I dont need to accept anything, I use the metric system as iam in Italy.

 

[marcello252]

Re: Anther thread about CAPS

Please dont direct this at me... Iam not the embodiment of america I dont need to accept anything, I use the metric system as iam in Italy.

ahahahaahh
sorry I didn't read

 

[Diminished Triad]

Re: Anther thread about CAPS

Given the standard range (not references) of caps that do fit/work and are intended for electric guitars, what do they do for the difference in sound/tone/output and are there brands and specs that can meaningfully change how a guitar sounds? Thanks!

 

[uOpt]

Re: Anther thread about CAPS

The U.S. military, NASA and a few other agencies use the metric system. Failing spaceships were not the US government's making, it was contracting companies mixing computer program components that had different ideas about feet versus meters.

Likewise for the fregate that tried to run over a harbor, although that one also ran MS windows which lead people to be unable to stop it after the feet/meter thing got it to ramming speed.

 

[uOpt]

Re: Anther thread about CAPS

Given the standard range (not references) of caps that do fit/work and are intended for electric guitars, what do they do for the difference in sound/tone/output and are there brands and specs that can meaningfully change how a guitar sounds? Thanks!

The old-style large format capacitors have a much more complex set of electrical properties than just a straight, constant capacitance.

Same problem if you e.g. try to read the capacitance of a pickup coil with a cheap capacitance meter. The other electrical values of the coil will prevent you from measuring the capacitance the simplest way.

 

[Archer250]

Re: Anther thread about CAPS

The U.S. military, NASA and a few other agencies use the metric system. Failing spaceships were not the US government's making, it was contracting companies mixing computer program components that had different ideas about feet versus meters.

Likewise for the fregate that tried to run over a harbor, although that one also ran MS windows which lead people to be unable to stop it after the feet/meter thing got it to ramming speed.

Lockheed used imperial, ignorant of NASA's metric use. This led to a botched landing.