Cold Flow Relaxation of a built-in stress by slow deformation of the material at room temperature. Found in PTFE compounds in particular. A component may be either Listed, Recognized or Unlisted Component. See also Product categories. Conductivity A measure of the ability of a material to conduct electric current under a given electric field.
Resistivity is the reciprocal of conductivity.
Other factors such as sealing, temperature, working voltage, IM performance, vibration, etc, also have to be taken into account. Connectors must, at a minimum, provide the same level of performance as the cable or the application to which they are attached. This means, before selecting a connector series, the cable type or the application has to be known. Its structure, dimensions and frequency range restrain the connector series that can be used. UL does not specifiy any RF Connectors such as is done for coaxial cables.