A measure of the center of a conductor's location with respect to the circular cross-section of the insulation surrounding it, expressed as a percentage of center displacement of one circle within the other.


A material which at room temperature, stretches under low stress to at least twice its length and snaps back to original length upon release of stress. Example: rubber.


The electrode position of an adherent metal coating on a conductive object for protection, decoration, or other purposes.

Engaging and Separating Force:

The amount of force needed to engage and/or separate contact elements in mating connectors. See "Contact Pressure."

Environmentally Sealed:

A connector provided with gaskets, seals, potting, or other devices to keep out moisture, dirt, air, or dust which might lower its performance.

Epoxy Resin:

Plastic materials that become hard, infusible solids upon the addition of a hardening agent. Epoxy resins have excellent adhesive action, high chemical, solvent, and thermal resistance, and low shrinkage on curing.

Extraction Tool:

A small, hand-held tool used to extract contacts from a connector.