SMA 50 Ohm - Reverse Thread
Straight Crimp Type Plug -
Solder or Crimp Captivated Contact
INCHES (MILLIMETERS)
CUSTOMER DRAWINGS AVAILABLE UPON REQUEST
CABLE TYPE
RG-142/U, 55, 223, 400
GOLD PLATED
142-5408-001
NICKEL PLATED
142-5408-006
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 attache d. Do not
tin center conductor if contact is to be crimp attached. When stripping LMR-100 low loss cable, remove foil back to where cabl e 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 between end of contact and X-hole. Crimp attachment to solid cente r
conductor cables is not recommended.
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 recom mended
crimp tool. Slide heat shrink forward and shrink (as applicable).
CABLE GROUP
RG-55/u, 142, 223, 400
PART NUMBER
142-5408-001/006
CRIMP HEX
.213 (5.41)
Cinch Connectivity Solutions
299 Johnson Avenue SW, Waseca, MN 56093 USA • 800.247.8256 • +1 507 833 8822 • cinchconnectivity.com
SMA Reverse Thread - 50 Ohm
Specifications
INCHES (MILLIMETERS)
CUSTOMER DRAWINGS AVAILABLE UPON REQUEST
ELECTRICAL RATINGS
Impedance:
50 ohms
Frequency Range:
Flexible cable connectors ..................................................... 0-12.4 GHz
Uncabled receptacles ........................................................... 0-18.0 GHz
VSWR:
(f = GHz)
Straight
Right Angle
Cabled Connectors
Cabled Connectors
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
Uncabled receptacles .......................................................................... N/A
Working Voltage:
(Vrms maximum)
†
Connectors for Cable Type
Sea Level 70K Feet
RG-316; LMR-100, 195, 200 ........................................... 250
65
RG-58, RG-142, LMR-240, uncabled receptacles .... 335
8
Dielectric Withstanding Voltage:
(VRMS minimum at sea level)†
Connectors for RG-316; LMR-100, 195, 200 ...................................... 750
Connectors for RG-58, RG-142, LMR-240, uncabled receptacles .. 1000
Corona Level:
(Volts minimum at 70,000 feet)†
Connectors for RG-316, LMR-100, 195, 200 ................................... 190
Connectors for RG-58, RG-142, LMR-240, uncabled receptacles ... 250
Insertion Loss:
(dB maximum)
Straight flexible cable
connectors ................................ .06
f (GHz), tested at 6 GHz
Right angle flexible cable
connectors ................................ 0.15 f (GHz), tested at 6 GHz
Low loss flexible straight
cable connectors ............................. 0.06
f (GHz), tested at 1 GHz
Low loss flexible right angle
cable connectors ............................. 0.15
f (GHz), tested at 1 GHz
Uncabled receptacles, field replaceable ...................................... N/A
Insulation Resistance:
5000 megohms minimum
Contact Resistance:
(milliohms maximum)
After
Initial
Environmental
Center contact (straight cabled connectors
and uncabled receptacles) ............................ 3.0*
4.0*
Center contact (right angle cabled
connectors ...................................................... 4.0
6.0
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
RF Leakage:
(dB minimum, tested at 2.5 GHz)
Flexible cable connectors ............................................................. -60 dB
Uncabled receptacles and adapters ................................................. N/A
RF High Potential Withstanding Voltage:
(Vrms minimum, tested at 4
and 7 MHz)
†
Connectors for RG-316; LMR-100, 195, 200 ................................... 500
Connectors for RG-58, RG-142, LMR-240, uncabled receptacles ... 670
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*
Torque
(pounds)
(in-oz)
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
*Or cable breaking strength whichever is less.
Durability:
500 cycles minimum
ENVIRONMENTAL RATINGS
(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
Shock:
MIL-STD-202, Method 213, Condition I
Vibration:
MIL-STD-202, Method 204, Condition D
Moisture Resistance:
MIL-STD-202, Method 106
MATERIAL SPECIFICATIONS
Bodies:
Brass per QQ-B-626, gold plated* per MIL-G-45204 .00001" min.
or nickel plated per QQ-N-290
Contacts:
Male - brass per QQ-B-626, gold plated per MIL-G-45204
.00003" min.
Female - beryllium copper per QQ-C-530, gold plated per MIL-
G-45204 .00003" min.
Nut Retention Spring:
Beryllium copper per QQ-C-533. Unplated
Insulators:
PTFE fluorocarbon per ASTM D 1710 and ASTM D 1457 or
Tefzel per ASTM D 3159
Expansion Caps:
Brass per QQ-B-613, gold plated per MIL-G-45204
.00001" min. or nickel plated per QQ-N-290
Crimp Sleeves:
Copper per WW-T-799 or brass per QQ-B-613, gold
plated per MIL-G-45204 .00001" min. or nickel plated per QQ-N-290
Mounting Hardware:
Brass per QQ-B-626 or QQ-B-613, gold plated per
MIL-G-45204 .00001" min. or nickel plated per QQ-N-290
Mating Engagement for SMA Reverse Thread Series per FCC Rule 15 Non-Standard Interface
JACK
PLUG
NOTES
1. ID OF CONTACT TO
MEET VSWR, CONTACT
RESISTANCE AND
INSERTION
WITHDRAWAL FORCES
WHEN MATED WITH DIA
.0355-.0370 MALE PIN.
†Avoid user injury due to misapplication.
See safety advisory definitions
inside front cover.
JACK
PLUG
Cinch Connectivity Solutions
299 Johnson Avenue SW, Waseca, MN 56093 USA • 800.247.8256 • +1 507 833 8822 • cinchconnectivity.com
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