Surface mountable Capacitors/Resistors - Electronic Circuits Projects Diagrams Free

BOBKA · 12th May 2007, 02:29 AM

Hi,

I am currently developing a schematics using eagle, and there is a C1206 (US) surface mountable capacitor. I know that in my local electronic store they do have some surface mountable capacitor. Do you think they will have 1uF capacitors, or do surface mountable caps are in order of pFs?

Also, I would like to use surface mountable resistors, are there any limits on those too? I was thinking about using R-US_R1206.

As for the surface mountable caps/resistors, are there any restrictions on the capacitance/resistance/power?

Thank You,

Vlad.

mneary · 12th May 2007, 02:56 AM

Quote:

I know that in my local electronic store they do have some surface mountable capacitor. Do you think they will have

No way of knowing. Maybe you should tell us where you are. It's a small world, but not that small.

1uF is commonly available as a surface mountable capacitor; I'm sure some are made in size 1206.

BeeBop · 12th May 2007, 03:01 AM

Hi Vlad,

Quote:

Do you think they will have 1uF capacitors, or do surface mountable caps are in order of pFs?

Well I don't know about your store, but I have a roll of .1uF here. They are marked 16 volt 10%. They are small size 0603. I think this means 6mm x 3mm. The 1206 would be 12mm x 6mm, if I'm thinking correctly. (I'm new at surface mount too.) I also have 0805 caps rated at 100 volts, so I know there are a range of voltage ratings. You should be able to get most any value available in ceramics, in a surface mount package.

I have some 1206 1% and 0805 5% resistors rated at 100mW, and I've seen 1206 rated at 250mW. Vishay has a 1 watt 1206 resistor, so by searching around you should be able to find what you need.

Sorry I can't be of more help, but if you google on 1206 smt resistor, or capacitor, you will get lots of info.

BOBKA · 12th May 2007, 03:52 AM

Alright guys, thanks alot.

Just to make sure I will go to the store tomorrow and check it

bloody-orc · 12th May 2007, 09:25 AM

almost everything made for through-hole is made for SMD. (actually more things are made SMD than holed). Resistor wattage goes to 1W IMHO (if not more). Also you can get virtually any capacitor for SMD.
I know, I use those things for every board I make... Much more cost effective you know... (and also neater)

Hero999 · 12th May 2007, 02:12 PM

You can get surface mount capacitors in most sizes, the smallest I've seen is 1pF at 50V and largest I've seen is 2200µF at 35V.

**3v0** · 12th May 2007, 06:02 PM

Quote:

Originally Posted by bloody-orc

I know, I use those things for every board I make... Much more cost effective you know... (and also neater)

Are you doing soldering iron, toaster oven, or fry pan ?

BOBKA · 12th May 2007, 08:55 PM

Here is a small tutorial (but very good) about conventions used in eagle choosing the right parts:

http://www.instructables.com/id/ENUTEALRUXEQHO8Y6O/

justDIY · 13th May 2007, 03:21 AM

Quote:

Originally Posted by BeeBop

Well I don't know about your store, but I have a roll of .1uF here. They are marked 16 volt 10%. They are small size 0603. I think this means 6mm x 3mm. The 1206 would be 12mm x 6mm, if I'm thinking correctly. (I'm new at surface mount too.)

0603 should be 0.6 mm x 0.3 mm, the size is length and width in tenths of a millimeter

BeeBop · 13th May 2007, 03:49 AM

Yea, OK; that makes more sense, thanks! 12mm x 6mm would be huge!

jpanhalt · 13th May 2007, 01:53 PM

Quote:

Originally Posted by justDIY

0603 should be 0.6 mm x 0.3 mm, the size is length and width in tenths of a millimeter

Those dimensions seem small compared to what I measure. Some references show that the SMD size is equal to the dimension in hundredth's of inches. That is, an 0805 resistor is 0.08" long (about 2mm) and 0.05" wide (about 1.27 mm), which agrees better with actual measurements. John

bloody-orc · 13th May 2007, 02:09 PM

the numbers mean size yes. but in mil's (actually mil*10)
0805 is 80mil * 50 mil (mil != mm)

Hero999 · 13th May 2007, 02:37 PM

A mil is 0.001 inches, it's nothing to do with millimeters.

jpanhalt · 13th May 2007, 02:55 PM

Try these sources:

http://www.fpga4fun.com/external/SMD/smdman.pdf (see: page 6)

http://www.radio-electronics.com/inf...d_resistor.php

http://www.answers.com/topic/surface-mount-technology

http://smdin.com:8080/explainedinbrief.html

That why I keep the grid in Eagle set on inches! Sorry, Bloody-orc

John

BeeBop · 13th May 2007, 03:14 PM

Thanks John!

Those links are full of valuable info for someone just getting started with SMT.

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12th May 2007, 02:29 AM	(permalink)
BOBKA	Surface mountable Capacitors/Resistors Hi, I am currently developing a schematics using eagle, and there is a C1206 (US) surface mountable capacitor. I know that in my local electronic store they do have some surface mountable capacitor. Do you think they will have 1uF capacitors, or do surface mountable caps are in order of pFs? Also, I would like to use surface mountable resistors, are there any limits on those too? I was thinking about using R-US_R1206. As for the surface mountable caps/resistors, are there any restrictions on the capacitance/resistance/power? Thank You, Vlad.

12th May 2007, 03:52 AM	(permalink)
BOBKA	Alright guys, thanks alot. Just to make sure I will go to the store tomorrow and check it

12th May 2007, 09:25 AM	(permalink)
bloody-orc	almost everything made for through-hole is made for SMD. (actually more things are made SMD than holed). Resistor wattage goes to 1W IMHO (if not more). Also you can get virtually any capacitor for SMD. I know, I use those things for every board I make... Much more cost effective you know... (and also neater) __________________ Need Help? Press F1 If that doesn\'t help you, ask me... I might know better.

12th May 2007, 02:12 PM	(permalink)
Hero999	You can get surface mount capacitors in most sizes, the smallest I've seen is 1pF at 50V and largest I've seen is 2200µF at 35V. __________________ I also post at the following sites: http://www.stop-microsoft.org http://www.heated-debates.com Screen name: Aloone_Jonez

12th May 2007, 08:55 PM	(permalink)
BOBKA	Here is a small tutorial (but very good) about conventions used in eagle choosing the right parts: http://www.instructables.com/id/ENUTEALRUXEQHO8Y6O/

13th May 2007, 03:49 AM	(permalink)
BeeBop	Yea, OK; that makes more sense, thanks! 12mm x 6mm would be huge!

13th May 2007, 02:09 PM	(permalink)
bloody-orc	the numbers mean size yes. but in mil's (actually mil10) 0805 is 80mil 50 mil (mil != mm) __________________ Need Help? Press F1 If that doesn\'t help you, ask me... I might know better.

13th May 2007, 02:37 PM	(permalink)
Hero999	A mil is 0.001 inches, it's nothing to do with millimeters. __________________ I also post at the following sites: http://www.stop-microsoft.org http://www.heated-debates.com Screen name: Aloone_Jonez

13th May 2007, 02:55 PM	(permalink)
jpanhalt	Try these sources: http://www.fpga4fun.com/external/SMD/smdman.pdf (see: page 6) http://www.radio-electronics.com/inf...d_resistor.php http://www.answers.com/topic/surface-mount-technology http://smdin.com:8080/explainedinbrief.html That why I keep the grid in Eagle set on inches! Sorry, Bloody-orc John

13th May 2007, 03:14 PM	(permalink)
BeeBop	Thanks John! Those links are full of valuable info for someone just getting started with SMT.