SMA - 50 Ohm Connectors
Specifications
INCHES (MILLIMETERS)
CUSTOMER DRAWINGS AVAILABLE UPON REQUEST
ELECTRICAL RATINGS
Impedance:
50 ohms
Frequency Range:
Dummy loads .......................................................................... 0-2 GHz
Flexible cable connectors ................................................... 0-12.4 GHz
Uncabled receptacles, RA semi-rigid and adapters ........... 0-18.0 GHz
Straight semi-rigid cable connectors and
field replaceable connectors ............................................... 0-26.5 GHz
VSWR:
(f = GHz)
Straight
Right Angle
Cabled Connectors Cabled Connectors
RG-178 cable .............................. 1.20 + .025f
1.20 + .03f
RG-316, LMR-100 cable .............. 1.15 + .02f
1.15 + .03f
RG-58, LMR-195 cable ................ 1.15 + .01f
1.15 + .02f
RG-142 cable ............................... 1.15 + .01f
1.15 + .02f
LMR-200, LMR-240 cable ............ 1.10 + .03f
1.10 + .06f
.086 semi-rigid ............................ 1.07 + .008f
1.18 + .015f
.141 semi-rigid (w/contact) .......... 1.05 + .008f
1.15 + .015f
.141 semi-rigid (w/o contact) ...... 1.035 + .005f
Jack-bulkhead jack adapter and plug-plug adapter ................. 1.05 + .01f
Jack-jack adapter and plug-jack adapter ............................... 1.05 + .005f
Uncabled receptacles, dummy loads .................................................. N/A
Field replaceable (see
page 59) .........................................................
N/A
Working Voltage:
(Vrms maximum)
Connectors for Cable Type
Sea Level 70K Feet
RG-178 ...................................................................... 170
45
RG-316; LMR-100, 195, 200 ..................................... 250
65
RG-58, RG-142, LMR-240, .086 semi-rigid,
uncabled receptacles, .141 semi-rigid w/o contact ... 335
85
.141 semi-rigid with contact and adapters ................. 500
125
Dummy loads ................................................................................. N/A
Dielectric Withstanding Voltage:
(VRMS minimum at sea level)
Connectors for RG-178 ................................................................... 500
Connectors for RG-316; LMR-100, 195, 200 .................................. 750
Connectors for RG-58, RG-142, LMR-240, .086 semi-rigid,
field replaceable, uncabled receptacles ...................................... 1000
Connectors for .141 semi-rigid with contact and adapters ............ 1500
Connectors for .141 semi-rigid w/o contact, dummy loads .............. N/A
Corona Level:
(Volts minimum at 70,000 feet)
Connectors for RG-178 ................................................................... 125
Connectors for RG-316; LMR-100, 195, 200 .................................. 190
Connectors for RG-58, RG-142, LMR-240, 086 semi-rigid,
uncabled receptacles, .141 semi-rigid w/o contact .......................... 250
Connectors for .141 semi-rigid with contact and adapters .............. 375
Dummy loads ...................................................................................... N/A
Insertion Loss:
(dB maximum)
Straight flexible cable connectors
and adapters ...................... 0.06 f (GHz), tested at 6 GHz
Right angle flexible cable
connectors ......................... 0.15 f (GHz), tested at 6 GHz
Straight semi-rigid cable
connectors with contact ..... 0.03 f (GHz), tested at 10 GHz
Right angle semi-rigid cable
connectors ......................... 0.05 f (GHz), tested at 10 GHz
Straight semi-rigid cable
connectors w/o contact ...... 0.03 f (GHz), tested at 16 GHz
Straight low loss flexible
cable connectors ................ 0.06 f (GHz), tested at 1 GHz
Right Angle low loss flexible
cable connectors ................ 0.15 f (GHz), tested at 1 GHz
Uncabled receptacles, field replaceable, dummy loads ..................... N/A
Insulation Resistance:
5000 megohms minimum
Contact Resistance:
(milliohms maximum)
Initial After Environmental
Center contact (straight cabled connectors
and uncabled receptacles) ........................... 3.0*
4.0*
Center contact (right angle cabled
connectors and adapters) .............................. 4.0
6.0
Field replaceable connectors ........................ 6.0
8.0
Outer contact (all connectors) ........................... 2.0
N/A
Braid to body (gold plated connectors) ............. 0.5
N/A
Braid to body (nickel plated connectors) ........... 5.0
N/A
*N/A where the cable center conductor is used as a contact
RF Leakage:
(dB minimum, tested at 2.5 GHz)
Flexible cable connectors, adapters and .141 semi-rigid
connectors w/o contact ............................................................. -60 dB
Field replaceable w/o EMI gasket .............................................. -70 dB
.086 semi-rigid connectors and .141 semi-rigid connectors
with contact, and field replaceable with EMI Gasket ................ -90 dB
Two-way adapters ...................................................................... -90 dB
Uncabled receptacles, dummy loads .............................................. N/A
RF High Potential Withstanding Voltage:
(Vrms minimum, tested at 4
and 7 MHz)
Connectors for RG-178 ................................................................... 335
Connectors for RG-316; LMR-100, 195, 200 .................................. 500
Connectors for RG-58, RG-142, LMR-240, .086 semi-rigid,
.141 semi-rigid cable w/o contact, uncabled receptacles .............. 670
Connectors for .141 semi-rigid with contact and adapters ............ 1000
Power Rating (Dummy Load):
0.5 watt @ + 25°C, derated to 0.25 watt @
+125°C
MECHANICAL RATINGS
Engagement Design:
MIL-C-39012, Series SMA
Engagement/Disengagement Force:
2 inch-pounds maximum
Mating Torque:
7 to 10 inch-pounds
Bulkhead Mounting Nut Torque:
15 inch-pounds
Coupling Proof Torque:
15 inch-pounds minimum
Coupling Nut Retention:
60 pounds minimum
Contact Retention:
6 lbs. minimum axial force (captivated contacts)
4 inch-ounce minimum torque (uncabled receptacles)
Cable Retention:
Axial Force*(lbs) Torque (in-oz)
Connectors for RG-178 ............................ 10
N/A
Connectors for RG-316, LMR-100 ........... 20
N/A
Connectors for LMR-195, 200 .................. 30
N/A
Connectors for RG-58, LMR-240 ............. 40
N/A
Connectors for RG-142 ............................ 45
N/A
Connectors for .086 semi-rigid ................. 30
16
Connectors for .141 semi-rigid ................. 60
55
*Or cable breaking strength whichever is less.
Durability:
500 cycles minimum
100 cycles minimum for .141 semi-rigid connectors w/o contact
(Meets or exceed the applicable paragraph of MIL-C-39012)
Temperature Range:
- 65°C to + 165°C
Thermal Shock:
MIL-STD-202, Method 107, Condition B
Corrosion:
MIL-STD-202, Method 101, Condition B
ENVIRONMENTAL RATINGS
Shock:
MIL-STD-202, Method 213, Condition I
Vibration:
MIL-STD-202, Method 204, Condition D
Moisture Resistance:
MIL-STD-202, Method 106
†Avoid user injury due to misapplication. See safety advisory definitions inside front cover.
Cinch Connectivity Solutions
299 Johnson Avenue SW, Waseca, MN 56093 USA • 800.247.8256 • +1 507 833 8822 • cinchconnectivity.com
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