Mechanical Characteristics; Pin Depth - Agilent Technologies 85032F User's And Service Manual

Mechanical Characteristics

Mechanical characteristics such as center conductor protrusion and pin depth are not
performance specifications. They are, however, important supplemental characteristics
related to electrical performance. Agilent Technologies verifies the mechanical
characteristics of the devices in this kit with special gaging processes and electrical
testing. This ensures that the device connectors do not exhibit any center conductor
protrusion or improper pin depth when the kit leaves the factory.
"Gaging Connectors" on page 3-7 explains how to use gages to determine if the kit devices
have maintained their mechanical integrity. (Refer to Table 2-3 on page 2-4 for typical and
observed pin depth limits).
Table 2-2 Mechanical Characteristics
Dimension
Inside diameter of outer conductor
Outside diameter of center conductor

Pin Depth

Pin depth is the distance the center conductor mating plane differs from being flush with
the outer conductor mating plane. See Figure 2-1. Some coaxial connectors (such as
2.4 mm and 3.5 mm) are designed to have these planes nearly flush. Type-N connectors,
however, are designed with a pin depth offset of approximately 5.26 mm (0.207 inch), not
permitting these planes to be flush. The male center conductors are recessed by the offset
value while the female center conductors compensate by protruding the same amount.
This offset necessitates redefining of pin depth with regard to protrusion and recession.
Protrusion refers to a male type-N connector center conductor having a pin depth value
less than 5.26 mm (0.207 inch), or female type-N connector center conductor having a pin
depth value greater that 5.26 (0.207 inch).
Recession refers to a male type-N connector center conductor having a pin depth value
greater than 5.26 mm (0.207 inch), or female type-N connector center conductor having a
pin depth value less than 5.26 (0.207 inch).
The pin depth value of each calibration device in this kit is not specified, but is an
important mechanical parameter. The electrical performance of the device depends, to
some extent, on its pin depth. The electrical specifications for each device in this kit take
into account the effect of pin depth on the device's performance. Table 2-3 lists the typical
pin depths and measurement uncertainties, and provides observed pin depth limits for the
devices in the kit. If the pin depth of a device does not measure within the observed pin
depth limits, it may be an indication that the device fails to meet electrical specifications.
Refer to Figure 2-1 for a visual representation of proper pin depth in type-N connectors.
85032F
Typical Value
7.0000 ±0.0076 mm
3.0404 ±0.0051 mm
Specifications
Mechanical Characteristics
2-3