Tool/software:
Hi Team,
Based on the package info that we should get 0.635mm x 27 = 17.145mm but following package shows 17.15mm.
There might be a tolerance, may I know which one if correct?
Thank you.

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Tool/software:
Hi Team,
Based on the package info that we should get 0.635mm x 27 = 17.145mm but following package shows 17.15mm.
There might be a tolerance, may I know which one if correct?
Thank you.

Evan,
If you are designing the pcb footprint, use the 0.635mm spacing. The 17.15 is a referenced value and is rounded to two decimal places.
Regards,
Gregg Scott