Capacitor values 0402, 0805..

0405 means that the dimensions (footprint) of the part are 4/100 inch by 2/100 inch. 0805 means that the dimensions of the part are 8/100 inch by 5/100 inch.

0402 and 0805 have nothing to do with the value of the part, or even if it is a capacitor, resistor, inductor, or diode.

At least this is simpler than that a 2 by 4 is a piece of lumber 1.5 inches thick and 3.5 inches wide.

I live in the great U. S. of A. What's "metric"? ;-)

The 'ordinary' 0402 is that, but there are also metric 0402 parts (0.4mm x 0.2mm), which are smaller than the 0201 parts.

Best regards, Spehro Pefhany

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John Popelish =E5=AF=AB=E9=81=93=EF=BC=9A

Got it, thank you very much !

Best regards, Boki.

this program helps a " Electronics assistant " it has helped me out alot it has resistance capacitance, power, other makes it easy and best of all its free

Dunno, ask the rocket scientists who so successfully crashed a Mars probe :-)

You thing "standard" is bad, try looking into the idiots who invented "whitman" sizing....Consult your local Saab/Scania/Gillig dealership...

At least we americans are the only ones stupid enough to mix english with metric in our GM cars...Then again we voted Bush for president not once but twice....That's what you get for spending 45x more on defense than education...

Yay republicans..................right?

The "standart" definition of "inch" and related confussion.

Have fun

Stanislaw Slack user from Ulladulla.

You are blaming the Republicans for the size markings on capacitors??

Apparently, different things to different people:

Cheers! Rich

That system you use to keep all the modern component dimensions from coming out with funny numbers. Like the 0402 that is actually 1mm x

0.5mm.

At 20,000 components per standard reel, the 'metric' 0402 = 01005 parts are getting a bit much for anything but consumer products, but even then the packaging is most of the volume.

A baseball-sized volume (~9" circumference) would hold..

((4/3) * (36.4mm)^3)/(0.4 * 0.2 * 0.13) = 4.6 million of them.

Best regards, Spehro Pefhany

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"it\'s the network..."                          "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
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The system that gave us the Japanese 2.5mm screw and the French 2.6mm screw, which aren't interchangeable.

What French 2.6 mm screw is that ?

Graham

"Pooh Bear" a écrit dans le message de news: snipped-for-privacy@hotmail.com...

screw,

Just mc's plain fantasy.

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Thanks,
Fred.

The Japanese did come out with some kind of different '+' srew head than the Philips to avoid paying royalties, IIRC, but that's nothing to do with metric.

The only 2.6mm screws I've spec'd were self-tapping or self-threading.

Best regards, Spehro Pefhany

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"it\'s the network..."                          "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com

ISTR 1.27mm allen headed grub screws

martin

I think it's called 'ISO metric' IIRC.

The + is shaped differently to Philips. Our Pozidrive or Supadriv screwdrivers fit it perfectly though and it gives a more positive drive.

Graham

Maybe marsians have a different thumbsize ..? :-)

I thought he was blaming poor education for the existence of Republicans.