MIL-PRF-39012E
4.6.20 RF high potential withstanding voltage (see 3.23). Connectors shall be mated with their
appropriately attached. This assembly shall then be inserted into the high impedance circuit as
shown on figure 5, or equivalent, and instantaneously subjected to the RF voltage and frequency
specified (see 3.1) between the center contact and body of the connectors. The duration of the test
shall be 1 minute. The RF voltage source shall be frequency stabilized and have an approximate
pure sine wave output with minimum harmonic content. Means shall be provided to indicate
disruptive discharge and leakage current. The maximum leakage current shall be as specified (see
3.1).
FIGURE 5. Circuit diagram for RF high potential withstanding voltage.
to its standard mating test cable. The connector shall be firmly fixed and a movable sleeve attached
to the cable. The sleeve is then moved longitudinally away from the fixed connector gradually and in
such a manner that the cable remains unbent and untwisted. A scale for measuring the retention
force (see 3.1) shall be attached to the sleeve. The force shall be held for 30 seconds minimum. The
assembly shall then be examined for mechanical failure, loosening, or rupture and tested for
continuity using a suitable test method. When specified (see 3.1), a torque shall be applied to the
cable about its axis in each direction relative to the connector at the location and to the torque value
given on the detail specification sheet. The cable (flexible types only) shall then be bent at a radius of
10 times the diameter of the cable starting at the connectors at an angle of 90º ± 5º from the axis of
the connector, then reversed 180º ± 10º. Repeat this procedure four times, then retest and
reexamine as outlined above.
4.6.22 Coupling mechanism retention forces (see 3.25). The connector body and coupling
mechanism shall be respectively secured to the lower and upper jaws of a tensile tester in an
appropriate manner. A tensile load shall be applied at a rate of approximately 100 pounds/minute up
to the force as specified and held at that value for one minute (see 3.1). During the one minute of
steadily applied force, the coupling mechanism shall be rotated with respect to the connector body,
two full revolutions in each direction.
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