MIL-PRF-31031 Connectors, Electrical, Plugs And Receptacles, Coaxial, Radio Frequency, High Reliability, For Flexible And Semirigid Cables, General Specification ForThis specification covers the general requirements and tests for radio frequency connectors used with flexible RF cables and certain other types of coaxial transmission lines.

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MIL-PRF-31031B

4.6.17 Temperature cycling (see 3.20). Connectors shall be subjected to test procedure EIA

364-32. The following details shall apply:

a. Test condition letter (see 3.1).

b. The contact resistance tests on the center contact shall be performed before and after the

thermal shock test and examined for mechanical damage (see 3.1).

c. Continuity shall be monitored during temperature cycling as specified in 4.6.15b.

4.6.18 Humidity (see 3.21). The connector shall be mated and cabled with its mating connector and

shall be subjected to test procedure EIA 364-31 condition B. The following exceptions and conditions

shall apply:

a. No initial measurements.

b. No load.

c. Step 7b (vibration) shall be omitted.

d. Measurements shall be made at high humidity when specified (see 3.1).

e. The connector shall withstand the dielectric withstanding voltage specified (see 4.6.14) after the

drying period.

4.6.19 Corona level (see 3.22). The mated test connector shall be subjected to a gradually increasing

sinusoidal voltage until a detector indicates a sustained corona discharge. The following details shall

apply:

a. Sensitivity of the detection equipment shall permit observation of corona of five picocoulombs or

less.

b. The connector to be tested shall be prepared using the type of cable specified (see 3.1). No

grease or similar compounds shall be used to seal the connector.

c. After installation of the test connector in a vacuum chamber and connection on the test connector

to a corona test system, reduce the pressure in the chamber to that specified (see 3.1).

d. Slowly increase the 48 to 62 Hz test voltage until the detector indicates a sustained corona

discharge or reaches two times the specified corona extinction voltage.

e. If sustained corona discharge is indicated, the voltage shall then be decreased slowly until the

corona extinction point is observed. The corona extinction voltage is defined as the voltage at

which sustained discharge ceases. If sustained corona has not been observed at two times the

specified corona extinction level, the requirement is considered to have been satisfied.