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luizfebf
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Join Date: Dec 2007
Location: Jaguariuna - SP - Brazil
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Weight of SMD Electronic Components

12/10/2007 8:41 AM

I'd like to know if there is a site that inform the WEIGHT of all kind of SMD electronic components (Resistors, Capacitors, diodes, Transistors, IC's, etc...). Thanks. Luiz
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bhankiii
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Location: El Lago, Texas, USA
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#1

Re: Weight of SMD Electronic Components

12/10/2007 10:39 AM

I'd like to know this as well.
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gadgetman
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Location: Bass Lake, California
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#2
In reply to #1

Re: Weight of SMD Electronic Components

12/10/2007 11:10 PM

Just get a dozen or so of each type and weigh them.

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U V
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Hobbies - Model Rocketry - New Member

Join Date: Jun 2007
Location: East of Seattle, Washington state Republic of the 50 states of America
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#3

Re: Weight of SMD Electronic Components

12/10/2007 11:30 PM

You have my curiosity also. We never weighed them, just increased the Pick-n-Place machine speed until it started to throw parts and backed it down until we got maximum throughput. Messy but fast in the short term.

I would think an optimization program given available nozzles, nozzle sizes, and parts to place and part weights could give a ball park figure (Good Guess).

just a thought

Brad

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uweka
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Location: Berlin (Germany)
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#4

Re: Weight of SMD Electronic Components

12/11/2007 2:10 AM

If you are interested in special parts then refer to the manufacturers datasheets. In their ROHS data, they list every milligram of something in order to show that their products are really "green" (whatever this is .....) and are lead-free, have no cadmium or whatever the requirement is.

If you only want a common information ("whats the approx. general weight of a 0207 Melf resistor?" **) then you find the weight mostly in the dimension-section or under "tape and reel" informations.

Regards Uwe


** 77mg

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luizfebf
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Location: Jaguariuna - SP - Brazil
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#5
In reply to #4

Re: Weight of SMD Electronic Components

12/11/2007 5:24 AM

Thanks Uweka, maybe this tip can be the most usefull way to find the components weight. I've been looking for the weight by Data Sheets, but I didn't find it. Maybe in Rohs section I can find the information, cause in Packaging section and Dimension section I couldn't find the information. B.R. and Thanks all for helping. Luiz
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uweka
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#7
In reply to #5

Re: Weight of SMD Electronic Components

12/11/2007 1:01 PM

luizfebf,

the attached address gives you an example of what kind of information you get from the semicon manufacturers.
Regards Uwe


http://focus.ti.com/lit/ml/swrd054/swrd054.pdf

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luizfebf
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#8
In reply to #7

Re: Weight of SMD Electronic Components

12/11/2007 1:09 PM

Thanks Uweka. B.R. Luiz
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kkjensen
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Canada - Member - BC Born, Alberta Raised, Quebec (poutine) crazed... Engineering Fields - Aerospace Engineering - An airplane is just a bunch of beams... Hobbies - Model Rocketry - Had fun as a kid...fun stuff Hobbies - CNC - dreaming of cutting Engineering Fields - Control Engineering - PID ME!

Join Date: Aug 2006
Location: Montreal, CANADA
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#6

Re: Weight of SMD Electronic Components

12/11/2007 7:40 AM

I ordered a pack of 5000 805 resistors and capacitors off ebay and the whole lot of them (even with little ziplock bags for each value) fits easily into the palm of my hand...I'm sure the plastic bags weight more than the hundred or so units in each bag.

With my soldering skills (or paste depositing skills) I'm sure there's more solder weight on the pcb than device weight!

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bhankiii (1); gadgetman (1); kkjensen (1); luizfebf (2); U V (1); uweka (2)

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