MIL-PRF-55339/18A
DESIGN AND CONSTRUCTION
General configuration: See figure 1.
Impedance: 50 ohms, nom.
Working voltage: Sea level 500 V rms.
70,000 feet (4.437 kPa) 125 V rms.
Frequency range: 0 to 4 GHz.
Temperature range: -65º to +165ºC.
PERFORMANCE (installation torque of 6 to 10 lb (0.68 to 1.13 Nm), series N)
Dimensions: See figure 1 and MIL-STD-348.
Series N
Center contact retention:
Series BNC
Axial force (lb. min)
6 (26.7 N)
6 (26.7 N)
Torque (in. oz, min)
N/A
N/A
Force to engage and disengage:
Series BNC
Series N
Longitudinal force (lb. max)
3.0 (13.3 N)
0
Torque (in. lb, max)
2.5 (0.34 Nm)
6.0 (0.68 Nm)
Coupling proof torque: 15 in.lb (1.69 Nm), min, series N.
Mating characteristics:
Center contact (socket): Not applicable
Outer contact:
Series BNC
Series N
Min test ring ID (in., max)
.319 (8.10 mm) .316 (8.03 mm)
16 (0.407 µm)
16 (0.407 µm)
Ring finish (microinches)
Insertion force (lb, max)
5 (22.2 N)
5 (22.2 N)
Insertion depth (in, min)
.093 (2.36 mm) .093 (2.36 mm)
Number of insertions
1
1
Max test ring ID (in., min)
.324 (8.23 mm) .324 (8.23 mm)
16 (0.407 µm)
16 (0.407 µm)
Test ring finish (microinches)
Insertion depth (in., max)
.031 (0.79 mm) .031 (0.79 mm)
Number of insertions
1
1
Permeability: <2.0.
Seal: Hermetic Not applicable.
Pressurized Not applicable.
Weatherproof Not applicable.
Insulation resistance: 5,000 megohms, min.
VSWR: 1.35:1, max .5 to 4 GHz.
RF leakage (total): -55 dB, min, 2 to 3 GHz.
RF insertion loss: .1 dB, max, 3 GHz (.06 √F (GHz) dB max tested at 3 GHz).
2
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