SMA 50 Ohm Straight Crimp Type
Bulkhead Jack (3-piece) -
Solder or Crimp Captivated Contact
INCHES (MILLIMETERS)
CUSTOMER DRAWINGS AVAILABLE UPON REQUEST
CABLE TYPE
RG-188 DS, RG-316 DS
VSWR & FREQ. RANGE
1.15 + .02 f (GHz) 0-12.4 GHz
GOLD PLATED
142-0304-411
NICKEL PLATED
142-0304-416
“A”
.385 (9.78)
1.
Identify connector parts. (3 piece parts - except bulkhead)
2.
Strip cable to dimensions shown. Do not nick braid or center conductor. Tin center conductor if
contact will be solder attached. Do not tin center conductor if contact is to be crimp attached. When
stripping LMR-100 low loss cable, remove foil back to where cable jacket is stripped. A wire stripper
of correct size is recommended for this step. Slide heat shrink (as applicable) and crimp sleeve onto
jacket of cable.
3.
Assemble contact onto cable as shown.
Solder Attachment:
Solder contact to center conductor through solder hole using .020 (0.51)
diameter solder. Use a minimum amount of solder for a good joint.
Crimp Attachment:
Crimp contact to center conductor using Johnson Components
TM
Hand Tool
144-0000-910, setting #2, with positioner 141-0000-907. Crimp location should be centered be-
tween end of contact and X-hole. Crimp attachment to solid center conductor cables is not recom-
mended.
4.
Flare braid and slide body assembly over contact and under braid. Then seat body assembly firmly
onto contact. The cable may have to be held in a clamping fixture. Arrange braid uniformly around
crimp stem. Slide crimp sleeve forward and crimp using recommended crimp tool. Slide heat shrink
forward and shrink (as applicable).
CABLE GROUP
RG-316DS,
188DS
Mounting hole layout
PART NUMBER
142-0304-411/416
CRIMP HEX
.151 (3.83)
Johnson Components
TM
•
P.O. Box 1732
•
Waseca, MN 56093-0832
•
1-800-247-8256
•
Fax: 507-833-6287
•
www.johnsoncomponents.com
Cinch Connectivity Solutions
299 Johnson Avenue SW, Waseca, MN 56093 USA • 800.247.8256 • +1 507 833 8822 • cinchconnectivity.com
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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