Preventing ESD equipment damage
Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree
of sensitivity. The following packaging and grounding precautions are necessary to prevent damage to
electric components and accessories:
Transport products in static-safe containers such as tubes, bags, or boxes, to avoid hand contact.
Protect electrostatic parts and assemblies with nonconductive or approved containers or
Keep electrostatic-sensitive parts in their containers until they arrive at static-free stations.
Place items on a grounded surface before removing them from containers.
When handling or touching a sensitive component or assembly, ground yourself by touching the
Avoid contact with pins, leads, or circuitry.
Place reusable electrostatic-sensitive parts from assemblies in protective packaging or
Personal grounding methods and equipment
Use the following items to help prevent ESD damage:
Wrist straps—These are flexible straps with a maximum of one megohm ± 10% resistance in the
ground cords. To provide a proper ground, wear the strap against bare skin. The ground cord
must be connected and fit snugly into the banana plug connector on the grounding mat or
Heel straps, toe straps, and boot straps—These can be used at standing computers and
are compatible with most types of shoes or boots. On conductive floors or dissipative floor mats,
use them on both feet with a maximum of one megohm ± 10% resistance between the operator
The following table shows protection levels available from static shielding materials.
This section provides guidelines to prevent ESD damage to equipment.
Chapter 5 Replacing components