Editing N connector (section)

==Power rating==
The ''peak'' power rating of an N connector is determined by voltage breakdown/ionisation of the air near the center pin. The ''average'' power rating is determined by overheating of the centre contact due to resistive insertion loss, and thus is a function of frequency. Typical makers' curves for a new clean connector with a perfect load ([[VSWR]]=1.0) give limits of ≈5000&nbsp;W at 20&nbsp;MHz and ≈500&nbsp;W at 2&nbsp;GHz.<ref>{{cite book
  | publisher = Huber+Suhner
  | title = RF Coaxial connectors General catalogue
  | pages = 369
  | edition = 2017
  | url = https://literature.hubersuhner.com/Technologies/Radiofrequency/RFConnectorsEN/?page=368}}</ref>
This square root frequency derating law is expected from the [[skin depth]] decreasing with frequency.  At lower frequencies the same maker recommends an upper bound of ≈1000&nbsp;V RMS.
To achieve reliable operation in practice over an extended period, a safety factor of 5 or more is not uncommon, particularly when generic parts may be substituted, or the operating environment is likely to lead to eventual tarnishing of the contacts.