MIL-PRF-55339/1B
DESIGN AND CONSTRUCTION
General configuration: See figure 1.
Impedance: 50 ohms, nominal.
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 in-lb (0.68 to 1.13 Nm), series N only)
Dimensions: See figure 1 and MIL-STD-348.
Center contact retention:
Axial force: 6 lb (26.69 N), min.
Torque: Not applicable.
Force to engage and disengage: See table l.
Coupling proof torque: 15 in-lb (1.69 Nm), max (series N only).
Mating characteristics:
Center contact: See table I.
Outer contact: Not applicable.
TABLE I. Performance characteristics.
Characteristics
Test value
Series BNC
Series N
Force to engage and disengage:
Longitudinal force
3 lb (13.3 N), max.
3 lb (13.3 N), max.
Torque
2.5 in-lb (0.28 Nm), max.
10 in-lb (1.13 Nm), max.
Mating characteristics (center contact):
Oversize test pin (inserted .125 in. (3.18 mm) deep)
.057 in (1.45 mm) dia.
.074 in (1.88 mm) dia.
Max test pin (insertion force 2 lb (8.89 N), max.)
.054 in (1.37 mm) dia.
.066 in (1.68 mm) dia.
Min test pin (withdrawal force 2 oz (0.56 N), min.)
.052 in (1.32 mm) dia.
.063 in (1.60 mm) dia.
Permeability: Less than 2.0.
Seal (hermetic, pressurized, and weatherproof): Not applicable.
Insulation resistance: 5,000 megohms, min.
VSWR: 1.30, max, at 500 to 4 GHz.
RF leakage (total): 55 dB, min, at 2 to 3 GHz.
RF insertion loss: .2 dB, max, at 3 GHz (.12 √F GHz) dB max tested at 3 GHz).
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