Note

Creepage and clearance requirements must be applied according to the specific equipment isolation

standards of an application. Care must be taken to maintain the creepage and clearance distance of a

board design to verify that the mounting pads of the isolator on the printed-circuit board do not reduce

this distance.

Creepage and clearance on a printed-circuit board become equal in certain cases. Techniques

such as inserting grooves and/or ribs on a printed circuit board are used to help increase these

specifications.

ISO7821, ISO7821F

SLLSEM2H – NOVEMBER 2014 – REVISED NOVEMBER 2024

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