Performance Specifications

Operating Temperature Range
Finish B: -65°C to +175°C (-85°F to +347°F)
Finishes C and F: -65°C to +200°C (-85°F to +392°F)
Finish A: -65°C to +150°C (-85°F to 302°F)

Material and Plating Data (Finish)
B – aluminum shell, olive drab cadmium over nickel base
C – aluminum shell, black anodized finish
F – aluminum shell, electroless nickel finish
A – aluminum shell, silver to light iridescent yellow color
(bright) cadmium over electroless nickel base

Corrosion Resistance
Finishes A, B and C withstand 500-hour salt spray. Finish F withstands 48-hour salt spray.

Durability
Mated connectors withstand a minimum of 250 mating cycles for RFI plug (MS27484) and 500 cycles for MS27473 and MS27500 plugs.

Environmental Seal
Wired, mated connectors with specified accessories attached, shall meet the altitude-immersion test specified by MIL-DTL-38999.

Fluid Resistance
Connectors resist specified immersions in MIL-PRF-7808, MIL-PRF-23699, MIL-PRF-5606, M2-V Chevron oil, Coolanol 25, MIL-DTL-83133 (JP-8), MIL-DTL-5624 (JP-4, JP-5), SAE-AMS1424 Type I, and other solvents and cleaning agents.

Shell-to-Shell Conductivity
Maximum potential drop shall not exceed:

  • With RFI spring fingers, finish F = 1.0 millivolt, while
    finishes A and B = 2.5 millivolts.
  • Without spring fingers = 200 millivolts.
  • Finish C = nonconductive.

Shielding Effectiveness
RFI and EMI attenuation at the specified frequencies meet the requirements of MIL-DTL-38999.

  • RFI shielding effectiveness of mated connectors with RFI backshells is measured in a triaxial radio frequency leakage fixture.
  • EMI shielding effectiveness is measured at the interface of mated connectors and tested by the mode-stirred technique specified in method 3008 of MIL-STD-1344.

Shock and Vibration Requirements
Wired, mated connectors shall not be damaged, nor shall there be a current interruption longer than one microsecond when subjected to the following:

Standard Shock
Mated connectors withstand a pulse of approximate half sine wave of 300 G magnitude with duration of three milliseconds applied in three axes per MIL-STD-1344, method 2004.

Vibration
Mated connectors withstand the following vibration levels:

  • Random vibration per MIL-STD-1344, method 205 test
    condition VI, Letter “J”.
 
Voltage Rating
  Maximum Operating
Voltage** 		Test
Voltage 		Test
Voltage 		Test
Voltage 		Test
Voltage
Service Sea Level Sea Level 50,000 Ft. 70,000 Ft. 100,000 Ft.
Rating AC (RMS) DC V RMS V RMS V RMS V RMS
M 400 550 1300 550 350 200
N 300 450 1000 400 260 200
l 600 850 1800 600 400 200
ll 900 1250 2300 800 500 200
Note: The establishment of electrical safety factors is left entirely to the designer, as he is in the best position to know exactly what peak voltages, switching currents, transients, etc., can be expected in a particular circuit.