Re: Questions about SMD passive components



> If such guides are not available, then could someone at least state which
> package (size/MELF/non-MELF/chip etc) should I use for a 30 ohm SMD resistor
> and a 33pF/10uF capacitors :)

It depends on (a) what other parameters are important for the part, and
(b) what your manufacturing prefers. My CM, for instance, "prefers"
0603 resistors - they stock every size as a standard part. Most 1206
parts are special order.

With resistors, you generally find that the larger parts have a higher
power rating. If you need 1/4W then you won't be using an 0603 resistor
:)

With some caps, you generally find that the larger parts have a higher
voltage rating.

If possible, pick one size (I'm standardized on 0603) and use this
preferentially - only specify a different package if you need a special
characteristic (like high-power resistors).

.



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