I hereby certify that I am not simply asking someone else to design a footprint for me.
I want to assign standard 0603 footprints to some caps & resistors, in the bulk footprint assignment tool accessed from the schematic editor there are two types of footprints with ‘0603’ in their names:
I know that 0201 is also a standard size so I am confused about what the correct footprint is.
What footprint should I use for the 0603 standard? What is the convention being used in the names in the picture - why are there two standard sizes in the name?
The first 4 digits are the Imperial size, and the second 4 digits are the Metric size. Here’s the Wiki article about packages:
If you look at the diagram there, the decoding is:
0201 is 0.02 in x 0.01 in
0603 is 0.6 mm x 0.3 mm
0603 is 0.06 in x 0.03 in
1608 is 1.6 mm x 0.8 mm
So it’s probably the latter you want. You can also tell by the pad sizes in the handsolder variant which has slightly larger pads to make it easier.
PS: You can also open up the footprint in the editor and measure the sizes of the features in the common method used by the editors: position the cursor on the first point, type space, then move to the second point and see the dx and dy in the status bar. Grid snap may affect the positioning though.
