Cannon 50 Ohm Connectors
PRECISION SMA
Key Features
• Military grade
• Rugged stainless steel design
• Intermateable with all SMAs to Mil-C-39012
• Frequency range DC to 18 GHz
Cannon’s precision SMA connectors feature the
MIL-C-39012 Series SMA interface and envelope
configuration. They can be mated with all
connectors meeting the MIL specification
dimensions. Designed for use with a variety of
subminiature coaxial cables, superior results are
obtained from DC to 18 GHz when used with semi-
rigid cables and from DC to 12.4 GHz with flexible
cable.These connectors are manufactured with
beryllium copper bodies which are gold plated or
stainless steel bodies which can be supplied with
either a gold plated or passivated finish.
Cannon also offers a range of commercial SMA
brass bodied connectors. For further details, please
see page 13.
MATING INTERFACES
7,92
(.312)
A/F HEX
Ø0.91
(.036)
4,83
(.190)
MIN
Ø4,55
(.179)
Ø1.27
(.050)
2,54
(.100)
MAX
2,54
(.100)
MAX
.250-36,
UNS-2B
THD.
Ø5,44
(.214)
MAX
Ø4,62
(.182)
Ø1,27
(.050)
1,98
(.078)
MAX
2,92
(.115)
.250-36,
UNS-2A
THD.
REFERENCE
PLANE
REFERENCE PLANE
PLUG
JACK
Dimensions shown in mm (inch)
Specifications and dimensions subject to change
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6
Cannon 50 Ohm Connectors
SPECIFICATIONS
ELECTRICAL
Impedance
Frequency Range
Voltage Rating
50Ω nominal
0 to 18.0 GHz
PRECISION SMA
Connectors for RG178/U series cable: At Sea Level=170 Vrms. At 21km (70k feet) = 45 Vrms
Connectors for RG316/U series cable: At Sea Level = 250 Vrms. At 21km (70k feet) = 65 Vrms
Connectors for RG142/U series cable: At Sea Level = 335 Vrms. At 21km (70k feet) = 85 Vrms
Insulation Resistance
Contact resistance
5000 MΩ minimum
Center Contact = 3.0 m
Ω
maximum initial. 4.0 m
Ω
maximum after environment
Outer Contact = 2.0 m
Ω
maximum initial. 2.0 m
Ω
maximum after environment
Braid to Body = 0.5 m
Ω
maximum
Contact Current Rating
Insertion Loss
RF Leakage
Voltage Standing Wave Ratio (VSWR)
To 18 GHz or 80% of upper cut-off
frequency of the cable , whichever is lower.
Applicable to 50Ω cables only.(F = GHz)
Dielectric Withstanding Voltage (DWV)
Corona Level
MECHANICAL
Engagement Design
Engagement Forces
Contact Torque
Mating Torque
Locknut Torque
Coupling Nut Retention
Materials
2.0 A dc maximum
0.06 x
freq. GHz tested at 6 GHz
Connector Configuration
Cable group
RG178/U braided
RG316/U braided
RG142/U braided
Straight
1.20 + .025F
1.15 + .02F
1.15 + .01F
Right Angle
1.20 + .03F
1.15 + .03F
1.15 + .02F
-60 dB minimum @ 2 - 3 GHz
Connectors used with RG316/U series cable = 750 Vrms @ Sea Level
Connectors used with RG316/U series cable = 190 V @ 21km (70k feet) minimum
SMA per MIL-C-39012, Series SMA
Torque: 0.23 Nm (2 in. lbs.) maximum
0.03 Nm (4 in. ozs.) minimum. (For captivated contacts)
0.8 Nm to 1.1 Nm (7 to 10 in. lbs.)
1.4 Nm to 1.7 Nm (12 to 15 in. lbs.) minimum
267 N (60 lbs.) minimum
Body & Body Components: Non-magnetic stainless steel or beryllium copper.
Female Contacts: Beryllium copper. Insulators: PTFE. Crimp Ferrule: Annealed copper alloy.
Gaskets: Silicone rubber
Finish/Plating
Center Contacts: Gold plated. Other Metal Parts: Gold plated or passivated (as specified)
to meet the finish and corrosion requirements of MIL-C-39012
-65° C to 165° C
MIL-STD-202, Method 101, test condition B, 5% salt solution
MIL-STD-202, Method 204, test condition D (20 G's)
MIL-STD-202, Method 213, test condition I (100 G's)
MIL-STD-202, Method 107, test condition B
MIL-STD-202, Method 106. No measurements at high humidity. Insulation resistance
shall be 200 M
Ω
minimum within 5 minutes after removal from humidity.
500 matings minimum
Unless otherwise specified, all connectors feature captivated contacts. When captivated
the contacts will withstand 26.7 N (6 lbs.) minimum axial force.
When properly assembled to the compatible single braided coaxial cable, the retention
is equal to the breaking strength of the cable.
Body Plating Options
The following part number suffices can be specified for Precision SMA Connectors
..... 310
..... 890
gold body, gold coupling nut
passivated body & coupling nut
ENVIRONMENTAL
Temperature Rating
Corrosion (salt spray)
Vibration, High Frequency
Shock
Thermal Shock
Moisture Resistance
GENERAL
Connector Durability
Contact Captivation
Cable Retention
Dimensions shown in mm (inch)
Specifications and dimensions subject to change
except Direct Solder Types; gold body, passivated coupling nuts
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7
Cannon 50 Ohm Connectors
CRIMP TYPE CABLE CONNECTORS FOR FLEXIBLE CABLE
Straight Plug, Non-Captive Contact
Part Number
050 - 622 - 9188890
050 - 622 - 9875890
Cable Numbers
RG174/U, 316/U
RD316
PRECISION SMA
17,78
(.700)
Assembly Instructions AI-102 (Page 43)
Straight Plug, Captive Contact
Part Number
A50 - 624- 9188890
A50 - 624 - 9875890
Cable Numbers
RG174/U, 316/U
RD316
7,92
(.312)
A/F HEX
25,91
(1.020)
17,91
(.705)
Assembly Instructions AI-703 (Page 51)
17,15
(.675)
13,59
(.535)
Right Angle Plug, Captive Contact
Part Number
050 - 628- 9188890
050 - 628 - 9875890
Cable Numbers
RG174/U, 316/U
RD316
12,07
(.475)
Assembly Instructions AI-90 (Page 41)
25,65
(1.010)
11,43
(.450)
Bulkhead Jack, Captive Contact
Part Number
050 - 627- 9188890
050 - 627- 9875890
Cable Numbers
RG174/U, 316/U
RD316
7,92
(.312)
A/F HEX
The surface finish on these products is passivated stainless
steel. For gold plated versions change last three digits of
the the part number from 890 to 310.
Mounting Plan W (Page 40)
Assembly Instructions AI-227 (Page 46)
Dimensions shown in mm (inch)
Specifications and dimensions subject to change
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8
Cannon 50 Ohm Connectors
PRECISION SMA
DIRECT SOLDER TYPE CABLE CONNECTORS FOR SEMI-RIGID CABLE
Straight Plug without Center Contact*
Part Number
055 - 607- 2003890
Cable Numbers
RG402/U
Ø3,61
(.142)
MIN
11,18
(.440)
*Center conductor of cable is used as contact
Assembly Instructions AI-302 (Page 48)
Straight Plug with Center Contact
Part Number
055 - 607- 9172890
055 - 607 - 9173890
Cable Numbers
RG405/U
RG402/U
A
2,20 (.088)
ØA
11,18
(.440)
3,60 (.142)
Assembly Instructions AI-252 (Page 47)
Right Angle Plug
Part Number
055 - 611- 3702890
055 - 611- 3703890
Cable Numbers
RG405/U
RG402/U
A
2,20 (.088)
3,60 (.142)
7,62
(.300)
17,15
(.675)
13,59
(.535)
ØA
MIN
Assembly Instructions AI-98 (Page 42)
The surface finish on these products is passivated stainless
steel. For gold plated versions change last three digits of
the the part number from 890 to 310.
Dimensions shown in mm (inch)
Specifications and dimensions subject to change
www.ittcannon.com
9
Cannon 50 Ohm Connectors
PRECISION SMA
FLANGE MOUNT RECEPTACLES
Straight Jack, Stub Contact, Extended Dielectric
Part Numbers
Square Flange
050 - 645 - 9009890
Narrow Flange
050 - 645 - 4540890
Ø1,27
(.050)
27,43
(1.080)
14.99
(.590)
1,65
(.085)
9.53
(.375)
Ø4,11
(1.62)
Straight Jack, Solder Pot Contact, Flush Dielectric
Part Numbers
Square Flange
050 - 645 - 9019890
Narrow Flange
Contact Customer Service
Ø1,27
(.050)
Ø0,76
(.030)
MIN
1,65
(.065)
14,61
(.575)
9,53
(.375)
Straight Jack, Tab Contact, Flush Dielectric
Part Numbers
Square Flange
050 - 645 - 4575890
Narrow Flange
050 - 645 - 4528890
0,27 x 1,27
(.005 x .050)
2,54
(.100)
9,53
(.375)
1,85
(.065)
12,70
(.500)
6,64
(.340)
5,66
(.223)
Flange Dimensions for Flange Mount
Receptacles and Panel Jacks
ALL FLANGE MOUNT RECEPTACLES HAVE
CAPTIVATED CONTACTS
15,88
(.625)
12,22
(.481)
The surface finish on these products is
passivated stainless steel. For gold plated
versions change last three digits of the the part
number from 890 to 310.
Ø2,59
(.102)
4 POSNS
Ø2,59
(.102)
2 POSNS
Square Flange
Narrow Flange
Dimensions shown in mm (inch)
Specifications and dimensions subject to change
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10
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