Hello,TechNetters!
Regarding through hole components with square leads:
The leads are cut to size from solder plated copper based material.
Oxidation occurs on the cut areas.
If you wave solder them with no clean flux (our application), you get an
odd shaped solder fillet:
Two sides are OK, two sides don't wet at all.
1.Is this solder joint reliable,or should it be reworked?
  I could not find the appropriate requirement in IPC 610. I also have
doubts that reworking with
no clean solder wire would help. And if I remember well, for SMD's there
is no requirement of full
wetting on the sides of the lead if the heel is OK, so, why should I
rework a lead which is soldered
both sides?
2.If I leave the joint as it is ,to which class would it comply?
Thank you,
Gaby

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