On Sep 1, 2005, at 10:24 AM, G Minch wrote:

> So, I want to put a 1/2 watt carbon resistor on my board. Great. What
> package is that? I haven't a clue. What if I want a 1/4 W metal film
> resistor? Same problem. This reduces me to a trial-and-error approach
> to picking the correct package size.

Bah.  You're talking about components with variable lead spacing.
Just pick a package with standard n*0.1inch spacing and worry about
the details later, perhaps when you test fit components on a printout.
1/4 and 1/8 W resistors work fine with .3 or .4 inch lead spacing if
mounted horizontally, .1 inch or .2 inch if mounted vertically.  Most
disk, ceramic, and electrolytic caps can be coerced in .2 inch spacing.
And that's probably about all you need if you're a hobbyist doing a
board that isn't jam-packed with components...

BillW
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