MIL-DTL-24308G

w/AMENDMENT 2

22

4.5.13 Temperature cycling (classes G, H, and N) (see 3.5.11). Unmated connectors shall be tested in accordance

with test procedure EIA-364-32, condition I, 5 cycles, except that the maximum temperature shall be as specified in

table VIII. At the completion of the last cycle, the connectors shall be returned to room temperature for further

examination and shall meet the requirements

specified in 3.5.11.

4.5.13.1 Temperature cycling (classes D, K, and M) (see 3.5.11.1). Mated connectors shall be tested in

accordance with test procedure EIA-364-32, condition I, 5 cycles, except that the maximum temperature shall be as

specified in table VIII. At the completion of the last cycle, the connectors shall be returned to room temperature for

further examination and shall meet the requirements

specified in 3.5.11.1.

4.5.14 Air leakage (classes H and K connectors) (see 3.5.12). Classes H and K connectors shall be mounted in a

manner suitable for application of one atmosphere pressure differential across the connectors, and tested in

accordance with test procedure EIA-364-02. The leakage rate shall be determined while pressurized air or gas,

containing not less than 10 percent helium by volume, is applied to the connector. Requirements shall be as specified

in 3.5.12.

4.5.15 Humidity (see 3.5.13). The connectors shall be fully wired. The unmated and wired connectors shall be

subjected to a humidity test in accordance with test procedure EIA-364-31, method IV and with the following

exceptions and details

as specified in 3.5.13.

a.

After the 24 hour conditioning period, the insulation resistance shall be measured.

b.

Upon completion of step 6 of the final cycle, connectors shall be removed from the chamber and surface

moisture removed from the insulators. Immediately following removal of surface moisture, the insulation

resistance tests (see 4.5.10) and the sea level dielectric withstanding voltage test (see 4.5.8.1) shall be

conducted.

4.5.16 Vibration (see 3.5.14). The connector assembly shall be mounted as specified herein and vibrated in

accordance with test procedure EIA-364-28, test condition IV. All contacts shall be wired in series with at least 100

milliamperes of current allowed to flow. A suitable instrument shall be employed to monitor the current flow and to

indicate any discontinuity or interruption of current flow. Requirements shall be as specified in 3.5.14.

4.5.16.1 Connector mounting. Each receptacle shall be mounted on a suitable fixture, which in turn shall be

attached to a vibration table. A suitable sensor shall monitor the receptacles at a point on or near the receptacle. A

counterpart plug shall be engaged with the receptacle and shall not be held by any locking means. The wire bundles

or cables attached to the receptacle shall be clamped to nonvibrating points at least 8 inches from the rear of the

receptacle. The wire bundles or cables attached to the plug shall be clamped to a vibrating point 4 ±1/2 inches from

the rear of the plug. The clamping length shall be chosen to avoid resonance of the wire bundles or cables. To

eliminate possible wire breakage when testing connectors wired with number 28 AWG wire, a strain relief clamp that

mounts directly to the connector and reduces the clamping length of the wire bundle to a minimum is permitted.

4.5.16.2 Printed wiring board connector mounting. Right angle connectors shall have the receptacle mounted on an

epoxy glass printed wiring board, 1/16 inch minimum (plus added tolerances) thick and clamped to a suitable fixture

which in turn shall be firmly mounted on the vibration table. Each plug shall be mounted in the normal manner at one

end of the rectangular epoxy glass laminate board. The board shall be 1/16 inch minimum thick.

4.5.17 Shock (see 3.5.15). Mated connectors shall be subjected to test condition E, test procedure EIA-364-27.

One shock shall be applied in each direction of the three major axes of the connectors. Receptacles shall be mounted

similar to the mounting

specified in 4.5.16.1. Plugs shall be engaged with the receptacles and shall not be held by any

locking means. All contacts shall be wired in series with a minimum of 100 milliamperes of current allowed to flow. The

wire bundles or cables shall be clamped to structures that move. A minimum of 8 inches of wire or cable shall be

unsupported behind the rear of the receptacle and 4 ±1/2 inches of wire or cable shall be unsupported behind the rear

of the plug. A suitable instrument shall be employed to indicate any discontinuity or interruption of current flow.

Requirement shall be as specified in 3.5.15.