PCB Libraries, Inc. | https://www.pcblibraries.com/forum/library-expert-pth-calculator_topic2114_post8746.html
1.50 X the Hole Diameter to calculate the Pad Size. For a 1.00 mm hole X 1.50 = pad diameter of 1.50 mm (0.25 mm annular ring) For a 2.00 mm hole X 1.50 = pad diameter of 3.00 mm (0.50 mm annular ring) For a 3.00 mm hole X 1.50 = pad diameter of 4.50 mm
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/library-expert-pth-calculator_topic2114_post8747.html
1.50 X the Hole Diameter to calculate the Pad Size. For a 1.00 mm hole X 1.50 = pad diameter of 1.50 mm (0.25 mm annular ring) For a 2.00 mm hole X 1.50 = pad diameter of 3.00 mm (0.50 mm annular ring) For a 3.00 mm hole X 1.50 = pad diameter of 4.50 mm
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/topic2114&OB=DESC.html
1.50 X the Hole Diameter to calculate the Pad Size. For a 1.00 mm hole X 1.50 = pad diameter of 1.50 mm (0.25 mm annular ring) For a 2.00 mm hole X 1.50 = pad diameter of 3.00 mm (0.50 mm annular ring) For a 3.00 mm hole X 1.50 = pad diameter of 4.50 mm
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic2114&OB=ASC.html
1.50 X the Hole Diameter to calculate the Pad Size. For a 1.00 mm hole X 1.50 = pad diameter of 1.50 mm (0.25 mm annular ring) For a 2.00 mm hole X 1.50 = pad diameter of 3.00 mm (0.50 mm annular ring) For a 3.00 mm hole X 1.50 = pad diameter of 4.50 mm
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/hole-size-for-through-hole-compoent_topic3025_post12054.html
: 5184 Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 16 Dec 2021 at 12:07pm Makes perfect sense, but in every through-hole calculator in V2021 Footprint Expert the user must enter the minimum and maximum lead diameter. i.e
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/hole-size-for-through-hole-compoent_topic3025_post12056.html
. I found this IPC information: Minimum Hole Size = Maximum Lead Diameter + 0.20mm (for Level B of IPC-2222) Being the manufacturer of the power module does not specify
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proportional environment in both cases. The results were as follows: 1.44mm round lead produces as 1.6mm hole and a 2.4mm pad; 0.8 X 1.2mm lead produces a 2.2mm hole
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/round-vs-rectangular-pth-calculations_topic672_post3113.html
proportional environment in both cases. The results were as follows: 1.44mm round lead produces as 1.6mm hole and a 2.4mm pad; 0.8 X 1.2mm lead produces a 2.2mm hole
