We get asked some times: Is there supposed to be exposed copper on the leads on the SOMC series like part number SOMC10KFCT-ND (Vishay part number SOMC160110K0JEA)?
Yes, the exposed copper on the leads next to the body is not a reject. You will see the exposed copper about here:
The parts have been manufactured this way since 1991 with no reports of issues due to the exposed copper.