Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

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Component weight formula

#5766

Component weight formula | 28 March, 2001

Does anyone know the formula for calculating the grams per sq cm of lead for mounting bottomside unglued components?

Thanks

James

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GCS

#5768

Component weight formula | 28 March, 2001

I've used below:

WEIGTH OF COMPONENT IN GRAMS ---------------------------- TOTAL PAD MATING AREA IN SQUARE INCHES

GRAMS PER SQUARE INCH MUST BE EQUAL/GREATER THAN 30 FOR SECONDARY MOUNTING.

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JAX

#5769

Component weight formula | 28 March, 2001

......So the more it weighs the better??? I'm not sure I follow. Did you mean to put "equal/less than" or were you answering a different question?

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GCS

#5771

Component weight formula | 28 March, 2001

sorry, equal to or less than.

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