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Message

SMD popular component sizes

2006-01-27 by derekhawkins

> Inside I can see surface mount resistors which must only be 
> 2mm or less long and 1mm wide.

0805 - 2 X 1.25 mm
0603 - 1.6 X .8 mm
0402 - 1 X .5 mm
0201 - .6 X .3 mm

Currently I buy and hand solder down to 0402s (small quantities). 
Down to 0603 is a piece of cake but problem with 0402 is visual 
confirmation of proper solder joint and for that I either use a 
camera (macro shot) or microscope. Just using a DIMM isn't good 
enough.

This is coming from someone who needs glasses in order to read or see 
just about anything properly in a 3' radius. Those with younger eyes 
will be amazed at how something that appears daunting at first soon 
becomes a walk in the park. Many of us can probably recall when 
soldering even a 1206 (3.2 X 1.6 mm) seemed like an impossible task.


--- In Homebrew_PCBs@yahoogroups.com, "Jim Miller" <jtmiller2@c...> 
wrote:
>
> They're not made for humans at all anymore. They're made for pick 
and place 
> robots. I just bought a little memory stick at Walmart and it has a 
clear 
> plastic case. Inside I can see surface mount resistors which must 
only be 
> 2mm or less long and 1mm wide.
> 
> jim ab3cv
> 
> 
> 
> After all, components should be
> made for humans to use, not ants.
> 
> ST
>

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