ELECTRICAL
Impedance
Frequency Range
Voltage Rating
Insulation Resistance
Contact resistance
Contact Current Rating
50
SSMB = 0 to 4.0 GHz. SSMC = 0 to 12.4 GHz
At Sea Level = 250 Vrms. at 21km (70k feet) = 60 Vrms
1000 M
minimum
Center Contact = 4.0 m
maximum initial. 6.0 m maximum after environment
Outer Contact = 1.0 m
maximum initial. 1.5 m maximum after environment
Braid to Body = 1.0 m
maximum
1.0 A dc maximum
0.30 dB maximum @ 1.5 GHz
SSMB = -40 dB minimum @ 2 - 3 GHz
SSMC = -50 dB minimum @ 2 - 3 GHz
Connector Configuration
SSMB
SSMC
Cable group
Straight
Right Angle
Straight
Right Angle
RG178/U, 196/U
1.25 + .02F
1.25 + .03F
1.20 + .02F
1.20 + .03F
RG188/U, 316/U
1.30 + .02F
1.30 + .03F
1.25 + .03F
1.30 + .02F
SSMB: Initial = 26.7 N (6 lbs.) max. engagement and 8.9 N(2 lbs.) minimum disengagement.
After 500 matings = 26.7 N (6 lbs.) max. engagement and 4.4 N (1 lb.) min. disengagement.
SSMC: 0.11 Nm (16 in. oz.) torque max.
SSMB: N/A
SSMC: 0.2 Nm to 0.23 Nm (28 - 32 in.oz)
0.28 Nm to 0.35 Nm (40 - 50 in. oz)
SSMB: N/A
SSMC: 111 N (25 lbs. ) minimum
Body, Body Components: Brass, half hard. Male and Female Contacts: Beryllium Copper.
Insulators: PTFE. Lockwashers: Phosphor Bronze. Crimp Ferrule: Annealed copper alloy.
Center Contacts: Gold plated. Other Metal Parts: Gold or nickel plated 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, SSMB: test condition B (15 G's). SSMC: test condition D (20 G's)
MIL-STD-202, Method 213, SSMB: test condition B, 75 G's @ 6 milliseconds, 1/2 sine.
SSMC: test condition C, 100 G's @ 6 milliseconds, 1/2 sine.
MIL-STD-202, Method 107, test condition B, except high temperature shall be 85 C.
High temperature shall be 200C for connectors using 200C cables.
500 matings minimum
8,9 N (2 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 SSMB and SSMC connectors.
...220 gold body
...910 nickel body
Insertion Loss
RF Leakage
Voltage Standing Wave Ratio (VSWR)
To 12.4 GHz or 80% of upper cut-off
frequency of the cable, whichever is lower.
Applicable to 50
cables only.(F = GHz)
Engagement Forces
Mating Torque
Locknut Torque
Coupling Nut Retention
Materials
Finish/Plating
Temperature Rating
Corrosion (salt spray)
Vibration, High Frequency
Shock
Thermal Shock
Connector Durability
Contact Captivation
Cable Retention
MECHANICAL
ENVIRONMENTAL
GENERAL
S
SP
PE
EC
CIIF
FIIC
CA
AT
TIIO
ON
NS
S
Cannon 50 Ohm Connectors
SSMB / SSMC
www.ittcannon.com
Dimensions shown in mm (inch)
Specifications and dimensions subject to change
28