Capacitor values 0402, 0805..

Hi All,


0402 means 1uF

and

0805 means 4.7uF?


How to read it ?

Thank you very much!

Best regards,
Boki

 

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.

http://www.topline.tv/drawings/pdf/01005 Chip/01005_Chip_Metric_0402.pdf

Best regards,
Spehro Pefhany

 

John Popelish 寫�：

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 wh
invented "whitman" sizing....Consult your loca
Saab/Scania/Gillig dealership..

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

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

 

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

Have fun

Stanislaw
Slack user from Ulladulla.

 

not once but twice....That's what you get for spending 45x more on

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

 

Apparently, different things to different people:

http://www.google.com/search?q=define:metric

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.

http://www.panasonic.com/industrial/components/pdf/AOA0000CE1.pdf

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

 

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

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

 

Just mc's plain fantasy.

 

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

 

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.