Northern Connectors Radiall SMB Series Coaxial Connectors - Manual (Page 22)

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7-22
SMC
CHaRaCTERISTICS
ElECTRICal CHaRaCTERISTICS
Impedance 50Ω
Frequency range DC - 10 GHz
V.S.W.R. (typ.)
Straight
Right angle
cable 3-14 2/50
1.25 + 0.04 F (GHz)
1.40 + 0.06 F (GHz)
2.6/50
1.20 + 0.04 F (GHz)
1.30 + 0.04 F (GHz)
Insertion loss
Straight
Right angle
3-27
0.25 dB max. at 4 GHz
0.5 dB max. at 4 GHz
RF leakage 3-26 -60 dB min between 2 and 3 GHz
Insulation resistance 3-11 1000 MΩ min
Contact resistance
• center contact (mΩ)
• outer contact (mΩ)
3-16 Initial
6
1
After environment
8
1.5
Voltage rating (volts RMS)
• at sea level
• at 70000 ft (21000 m)
cable 2/50
250 V rms
60 V rms
2.6/50
335 V rms
85 V rms
Dielectric withstanding voltage
• at sea level
• at 70000 ft (21000 m)
cable 3-17 2/50
750 V rms
185 V rms
2.6/50
1000 V rms
250 V rms
RF high potential withstanding
voltage (Frequency 5 MHz)
• at sea level
cable 3-23 2/50
500 V rms
2.6/50
700 V rms
MECHaNICal CHaRaCTERISTICS
Durability 3-15 500 matings
Force to engage and disengage 3-5-1 torque: 16 inch-ounces max - 11.3 Ncm
Mating torque 35 to 50 inch-ounces - 25 to 35 Ncm
Coupling nut proof torque 100 inch-ounces - 71 Ncm
Coupling nut retention force 3-25 35 Ibs min - 156 N min
Cabling retention force cable 3-24 2/50
13 Ibs - 58 N
2.6/50
25 Ibs - 110 N
Contact captivation Axial force: 4 Ibs - 18 N torque: not applicable
ENVIRONMENTal CHaRaCTERISTICS
Operating temperature range
standard models and hermetic
models for semi-rigid cables
-65°C / + 165°C
-65°C / +105°C
Temperature cycling MIL-STD-202, method 102, condition C
Thermal shock 3-20 MIL-STD-202, method 107, condition B
High temperature test MIL-STD-202, method 108
Corrosion (salt spray) 3-13 MIL-STD-202, method 101, condition B, 5%
Vibration 3-18 MIL-STD-202, method 204, condition D, 20g
Shock 3-19 MIL-STD-202, method 213, condition C, 100g
Moisture resistance 3-21 not applicable
Barometric pressure 3-22 MIL-STD-202, method 105, condition C
Hermetic test
Down to 10 -6 mm Hg (Torr)
Leak rate <1 x 10 -6 atm/cm 3 /sec
MaTERIalS aND PlaTINg
Material Plating
Bodies and male contacts Brass, half hard per QQ-B-626
Gold to satisfy the corrosion
requirements (bodies)
Female contacts and interfaces Beryllium copper per QQ-C-530 Gold (Center contact)
Ferrules Brass
Insulators PTFE teflon
Gaskets Silicone rubber
All dimensions are given in mm
Test/characteristics MIL-C-39012 paragraph Values/remarks