Northern Connectors Radiall N Series Coaxial Connectors - Manual (Page 11)

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12-11
N 75
Ω
CHARACTERISTICS
Standard packaging = 50 pieces.
ELECTRICAL CHARACTERISTICS
Impedance 75Ω
Frequency range DC - 1.5 GHz
Typical V.S.W.R. Cable 6/75
Cable 10+11/75
1.06
1.10
Insertion loss straight connector
right-angle connector MIL
< 0.15 dB
RF Leakage MIL - 90 dB min at 1 GHz
Insulation resistance MIL 5000 MΩ min
Contact resistance
center contact
outer contact
MIL
Initial
1 mΩ
0.2 mΩ
After tests
1.5 mΩ
-
Working voltage in VRMS at sea level (at 70 000 feet) CECC
Cable 10+11/75: 1400 (400)
Cable 6/75: 850 (250)
Dielectric withstanding voltage in VRMS
at sea level (at 70 000 feet) CECC
Cable 10+11/75: 2500 (600)
Cable 6/75: 1500 (350)
RF testing voltage sea level CECC 1500 VRMS (5 MHz sine wave)
MECHANICAL CHARACTERISTICS
Durability CECC 500 matings
Engagement and separation torque CECC 6.6 Ncm max (.58 Inch-pounds)
Recommended coupling nut torque CECC
40 to 60 Ncm (manual)
130 Ncm (11.45 inch pounds) (with pliers R282 202 000)
Proof torque CECC 170 Ncm (14.96 inch pounds)
Coupling nut retention force CECC 450 N (101.25 Lbs)
Cable retention force cable 6/75
cable 10+11/75
CECC
200 N
300 N
Center contact retention force axial MIL 27 N (6.08 Lbs)
ENvIRONMENTAL CHARACTERISTICS
Temperature range CECC - 55°C + 155°C
Thermo cycling test CECC - 55°C / + 155°C / 21 j
Thermal shock CECC - 40°C / + 155°C or - 40°C / + 85°C – 5 cycles
Hight temperature test CECC 125°C / 1000 H
Corrosion salt spray CECC 48 H
Vibration CECC Sinus 10 g / 10 – 500 Hz
Shock CECC 1/2 Sinus 50g / 11 ms
Moisture resistance clamp type
crimp type
IEC 529
IP 67
IP 65 (with heatshrink sleeve)
Hermetic test CECC 10-5 bar. cm 3 /s
Leakage CECC Differential pressure 100 to 110 KPa: 1 bar cm 3 / H
MATERIALS
Body (nut)/center male contact/outer contact) Brass
Center female contact Treated beryllium copper
Ferrule Brass
Insulator PTFE
Gasket Silicon elastomer
PLATING
Body BBR
Coupling nut/design BBR/cross knurled
Center contact Gold
Outer contact/design BBR/slotted
Test/characteristics Standard reference Values/remarks