D38999/49 Defense Supply Center, D38999/49 Datasheet - Page 38

• Manufacturer Part Number: D38999/49
• Description: D38999K / D38999J 500 Cycle Contact
• Manufacturer: Defense Supply Center

2010 of MIL-STD-1344 with the following details and exceptions:
and R). Unmated connectors shall be tested in accordance with method 1001 of MIL-STD-1344. The
following details and exceptions shall apply:
M, S, W, X and Y). The wired, assembled plugs and receptacles shall be mated and unmated 50 cycles at
a rate of 300 cycles per hour maximum. The mating and unmating shall be accomplished so that the plug
and receptacle are completely separated during each cycle. The connectors shall then be subjected to the
salt spray test in accordance with method 1001 of MIL-STD-1344. The following details and exceptions
apply:
completed.
be tested in accordance with method 3004 of MIL-STD-1344.
provides a complete series circuit through all contacts of the mated connector. A suitable power source
and indicator shall be provided such that the earliest point at which the circuit is completed, during normal
connector mating, can be established. Connector halves shall be slowly mated by the normal mating
means until first indication of a completed circuit is observed. Means shall be provided to assure that
electrical contact is made between the pin and the spring of the socket contact, rather than the hood of the
socket contact. The mating operation shall be held at this point and the overall connector length shall be
4.5.11 Insert retention (see 3.15). Unmated connectors shall be tested in accordance with method
4.5.12 Salt spray (corrosion) (see 3.16).
4.5.12.1 Standard test (series I and II, finishes A, D, F, N, U and R; series III and IV, classes F, G, N,
4.5.12.2 Dynamic test (series I and II, finishes B, C, E, and X; and series III and IV, classes C, H, J, K,
4.5.13 Contact resistance (hermetics with sockets only) (see 3.17). Contacts of mated connectors shall
4.5.14 Electrical engagement (see 3.18). Counterpart plugs and receptacles shall be wired so it
After the salt spray exposure the remaining number of durability cycles specified in 4.5.7 shall be
a. The connectors (series I and II, finishes B, C, and E; and series III and IV, classes C, H, K, W,
b. The connectors shall not be mounted but shall be suspended from the top of the chamber using
a. Force to be applied: 100 ±5 pounds per square inch with a 25 pounds minimum force.
b. Connectors may be wired.
a. Test condition letter B, except series I and II, finish D is for 24 hours.
b. Test condition letter A for classes U and R.
c. The samples shall not be mounted but shall be suspended from the top of the chamber using
d. Wire ends must be protected to prevent salt migration.
c. Wire ends must be protected to prevent salt migration.
waxed twine or string, glass rods, or glass cord.
and Y) shall be tested for 452 hours mated followed by 48 hours unmated. The connectors (all
series, class X) shall be tested for 952 hours mated followed by 48 hours unmated. For initial
qualification, the connectors (series III and IV, classes J and M), shall be subjected to 50 cycles
durability followed by 1952 hours salt spray mated, then 48 hours salt spray unmated followed by
1450 cycles durability. For periodic inspection, the connectors (series III and IV, classes J and M)
shall be tested 452 hours mated followed by 48 hours unmated.
waxed twine or string, glass rods, or glass cord.
MIL-DTL-38999K
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