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IRDC3629

PCB Metal and Components Placement



The lead land width should be equal to the nominal part lead width. The minimum lead to lead spacing should be

≥ 0.2mm to minimize shorting.



The lead land length should be equal to maximum part lead length + 0.3 mm outboard extension + 0.05mm

inboard extension. The outboard extension ensures a large and inspectable toe fillet, and the inboard extension will

accommodate any part misalignment and ensure a fillet.



The center pad land length and width should be equal to maximum part pad length and width. However, the

minimum metal to metal spacing should be ≥ 0.17mm for 2 oz. Copper (≥ 0.1mm for 1 oz. Copper and ≥ 0.23mm for

3 oz. Copper).



Two 0.30mm diameter via should be placed in the center of the pad land and connected to ground to minimize the

noise effect on the IC.

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