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Tab, see https://ac-dc.power.com/sites/default/files/product-docs/topswitch-jx_family_datasheet.pdf Power Integrations E Package eSIP-7F Flat Package with Heatsink Tab https://ac-dc.power.com/sites/default/files/product-docs/linkswitch-ph_family_datasheet.pdf SIP4 Footprint for the articles! Smoothing_radius = 3; difference() { union() { cube([board_width, board_height, thickness]); cylinder(thickness+standoff_height, r=standoff_radius, $fn=360); cube([cutout_width, cutout_height, thickness+3]); cylinder(h=thickness+standoff_height+3, r=hole_radius, $fn=360); vertex 0 9 4.51215 vertex 0 10.1139 2.58057 vertex -6.86157 7.38961 2.58057 vertex -1.97312 9.91954 2.58057 facet normal -0.828696 0.0816193 0.553715 facet normal -0.747983 -0.192821 0.635092 facet normal 0.598695 -0.491333 0.632579 facet normal -0.447804 -0.38247 0.808201 vertex 6.07199 0 19.1916 vertex 2.93047 -1.46953 19.4867 facet normal -3.508289e-001 -6.139492e-001 7.070965e-001 vertex 2.548704e+000 4.382203e+000 2.484855e+001 facet normal -0.305573 0.114506 0.945258 facet normal 0.288584 -0.95132 0.108209 facet normal -0.368707 0.924221 0.0993544 facet normal 0.237813 -0.388084 0.890413 facet normal 5.039928e-01 8.637078e-01 1.027001e-04 vertex -9.393332e+01 1.052121e+02 4.255000e+01 facet normal 0.625114 0.33413 0.7054 facet normal 0.0974474 0.989341 0.108207 facet normal 4.926593e-001 -8.446044e-001 2.095953e-001 facet normal 4.268660e-001 7.465647e-001 5.103201e-001 vertex -4.032579e+000 -2.395187e+000 2.482134e+001 facet normal -6.225669e-001 -7.825666e-001 0.000000e+000 vertex -5.624188e+000 -5.011618e-001 2.496000e+001 vertex 1.039424e+000 -7.046255e+000 1.747200e+001 facet normal 3.721676e-001 6.509285e-001 6.616520e-001 vertex 3.779778e-002 -4.777771e+000 2.488918e+001 facet normal -0.550857 0.679089 0.485175 vertex 6.35535 0.201366 7.51116 vertex -4.43402 4.43402 7.71007 vertex -4.47998 -4.47998 7.50886 vertex -6.35535 -0.201366 7.51116 facet normal -0.83205 -0.5547 0 vertex -5.69599 -3.1314 20 vertex 2.00861 -6.18187 19.9 facet normal 6.902356e-01 1.546646e-03 -7.235830e-01 facet normal 0.290279 0.956942 -7.53346e-07 facet normal 4.002529e-02 -4.384009e-03 9.991890e-01 facet normal 0.630636 0.768498 0.108209 vertex -5.48554 1.87874 21.335 facet normal -2.845768e-001 -4.980100e-001 8.191471e-001 facet normal -0.989167 -0.0992487 0.108159 facet normal 0.881923 0.471394 0 vertex -0.927051 2.85317 9.999 vertex -0.927051 2.85317 9.999 vertex -2.42705 -1.76336 0 vertex -3.48287 -5.48813 19.9 facet normal -9.775310e-01 3.009089e-03 2.107704e-01 vertex -1.042880e+02 9.725134e+01 1.031482e+01 vertex -1.042796e+02 9.695134e+01 1.035785e+01 facet normal -8.391899e-02 9.964726e-01 0.000000e+00 facet normal 0.471401 0.881919 0 vertex 2.42705 1.76336 0 vertex 0.388301 -10.1521 0 facet normal -0.678289 -0.122657 0.724486 facet normal -0.60884 -0.184688 0.771495 facet normal 4.075214e-001 7.106026e-001 5.735593e-001 vertex -4.274127e+000 -3.419621e+000 2.480400e+001 facet normal -3.176322e-001 -2.055231e-003 9.482118e-001 vertex 4.233237e+000 1.628014e+000 2.495526e+001 facet normal 0.0983343 -0.0147039 0.995045 vertex 4.13852 -7.16813 19.9688.

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