Ohm Type-N Connectors - Keysight NFA Series Performance Verification And Calibration Manual

Figure E-5
NOTE
Caring for Connectors
Mechanical Specifications
Type-N connectors
FEMALE
Therefore the mechanical specifications of Type-N connectors give a
maximum protrusion of the female contact fingers in front of the outer
conductor mating plane and a minimum recession of the shoulder of the
male contact pin behind the outer conductor mating plane.
As Type-N connectors wear, the protrusion of the female contact fingers
generally increases, due to wear of the outer conductor mating plane
inside the female connector. This decreases the total center conductor
contact separation and should be monitored carefully.

75 Ohm Type-N Connectors

Ω
75 Type-N connectors differ from 50
significantly in that the center conductor, male contact pin, and female
contact hole are smaller. Therefore, mating a male 50
connector with a female 75
Ω
75 connector by spreading the female contact fingers apart
permanently or even breaking them.
Ω Ω
If both 75 and 50
you are using, identify the 75
are never mated with any 50
168
MALE
Outer Conductor
Mating Plane
Ω
Type-N connectors most
Ω
Type-N connector will destroy the female
Type-N connectors are among those on the devices
Ω
Type-N connectors to be sure that they
Ω
Type-N connectors.
Ω
Type-N
Appendix E