D38999/49 Defense Supply Center, D38999/49 Datasheet - Page 37

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

accordance with method 3001 of MIL-STD-1344. Connectors shall be mated when testing after altitude
immersion, humidity, and altitude low temperature. The following details and exceptions apply:
with pin contacts shall be tested in accordance with method 3001 of MIL-STD-1344 with the following
details and exceptions:
4.5.10.1 Dielectric withstanding voltage at sea level. Wired, unmated connectors shall be tested in
4.5.10 Dielectric withstanding voltage (see 3.14).
4.5.10.2 Dielectric withstanding voltage at altitude. Mated connectors and unmated connector halves
a. The magnitude of the test voltage shall be as specified in table I (see MIL-STD-1560 for service
b. Fifty percent of the contacts available shall be tested, but in no case shall less than six dielectric
c. The test voltage shall be maintained at the specified value for 2 seconds minimum.
d. For quality conformance, simulated contacts and special techniques may be used in performing
c. Measurements shall be made while the connectors are still in the chamber at the specified
a. The magnitude of the test voltage shall be as specified in table I.
b. Fifty percent of the contacts available shall be tested, but in no case shall less than six dielectric
c. The test voltage shall be maintained at the specified value for 2 seconds minimum.
d. The leads of all test circuits shall be brought out through the walls of the chamber. There shall be
e. Only the engaging faces of hermetics and box mounting receptacle connectors shall be subjected
f. The chamber shall be evacuated to each of the specified altitude pressure equivalents listed
(1) Series I and II: Finishes A, D and U: 150 C +5 C, -0 C; B and X: 175 C +5 C, -0 C;
(2) Series III and IV: Classes J and W: 175 C +5 C, -0 C; C, F, G, H, K, N, M, R, S, X and Y:
temperature.
rating).
withstanding voltage readings be taken. If the number of contacts is three or less, all contacts
adjacent contact, and the shell.
this test.
withstanding voltage readings be taken. If the number of contacts is three or less, all contacts
shall be tested. The test voltage shall be applied between each wired contact and each adjacent
contact and the shell.
no wire splices inside the chamber. The wire ends of all leads shall be unsealed.
to the high altitude. The rear face shall be suitably protected.
below.
shall be tested. The test voltage shall be applied between each wired contact, and each
C, E, F, N and R: 200 C +5 C, -0 C.
200 C +5 C, -0 C.
100,000 feet
50,000 feet
70,000 feet
MIL-DTL-38999K
Altitude
37
Equivalent pressure
87 torr
33 torr
8 torr