When determining prep requirements I always look at the component itself (wattage, size, type of component, etc) .  To determine cut length I take the PCB thickness, factor in if the leads have to be formed, height requirements,  and any length loss for the bend radius and then add a sufficient amount to allow the lead to firmly protrude but not excessive to violate the maximum allowed lead protrusion for the class of product that we are building.  

>>> [log in to unmask] 07/12/01 01:26AM >>>
Hello,

Does anyone know what is the standard used for prepping
the leads for through-hole boards?

What are the critical parameters one should consider
when determining the amount of trimming on the leads?

Rgds,
Peter


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