5-20 Electronic Calibration Modules Reference Guide
Specifications and Characteristics
Mechanical Characteristics
5-
Figure 5-4 Pin Depth for Type-N Connectors
Critical Type-N Mechanical Characteristics
— Minimum protrusion of the female center conductor in front of the outer
conductor mating plane is 5.182 mm or 0.204 inches.
— Maximum protrusion of the female center conductor in front of the outer
conductor mating plane is 5.258 mm or 0.207 inches.
— Minimum recession of the shoulder of the male contact pin behind the
outer conductor mating plane is 5.258 mm or 0.207 inches.
— Maximum recession of the shoulder of the male contact pin behind the
outer conductor mating plane is 5.334 mm or 0.210 inches.
In the Keysight precision specification for Type-N connectors, the minimum
allowable recession for the male contact pin shoulder is 0.001 inches less than
in the MIL-C-39012, Class II specification. Keysight Technologies Type-N pin
depth gages set “zero” on the gage to be equal to a nominal 5.258 mm (0.207
inches) offset.
As Type-N connectors wear, the protrusion of the female contact-fingers
generally increases. This is due to the wear of the outer conductor mating
plane inside the female connector. It is necessary to check this periodically as
it decreases the total center conductor contact separation.
Never use a Type-N connector if the possibility of interference between the
shoulder of the male contact pin and the tip of the female contact fingers exists.
Irreparable damage will occur if a male 50 Ω Type-N connector is mated to a
female 75 Ω Type-N connector. If you use both 75 Ω and 50 Ω t Type-N
connectors, mark the 75 Ω connectors so that they are never accidentally mated
with 50 Ω connectors. The diameter of the center conductor, male contact pin,
and female contact hole are smaller on 75 Ω connectors.
To Next Page
Loading...
