SSMB RF connectors are microminiature devices that provide repeatable electrical performance from DC to 3GHz. The standard mating design for SSMB series connectors are similar to SMB and SMC but with size reduced approximately one-third. This makes them ideal for use in confined areas where the use of wrenches is not practical. They are lightweight, easy to connect and disconnect, vibration-proof and highly reliable. They are best suited for use with cables in the range of .070" to .120" diameters, such as RG-178, RG-174, and RG-316. Because of their small-size and tight tolerance, finishes other than gold plating are not recommended.
SSMB type connectors have gained wide acceptance and usage in military radio systems, where small size is needed for miniaturization but ruggedness and reliability are very important.
SSMB Plug
|
SSMB Jack
|
|
|
|
Letter
|
Minimum
|
Maximum
|
|
A
|
0.84
|
-
|
|
B
|
-
|
1.35
|
|
C
|
-
|
4.83
|
|
D
|
-
|
1.78
|
|
E
|
0.00
|
0.00
|
|
F
|
0.84
|
-
|
|
G
|
3.10
|
-
|
|
-
|
-
|
-
|
|
|
Letter
|
Minimum
|
Maximum
|
|
A
|
1.91
|
-
|
|
B
|
3.10
|
-
|
|
C
|
0.36
|
0.38
|
|
D
|
1.37
|
-
|
|
E
|
-
|
2.67
|
|
F
|
-
|
0.84
|
|
G
|
1.91
|
-
|
|
H
|
0.00
|
0.00
|
|
| Impedance |
50 ohm |
|
Frequency Range |
DC to 3 GHz |
|
| Dielectric Withstanding Voltage (at sea level, in V rms, 50 Hz) |
500 max
|
|
| Working Voltage(at sea level, in V rms, 50 Hz) |
250 max
|
|
| Insulation Resistance |
1000 M min
|
|
| RF Leakage |
-70 dB min @ 2-3 GHz
|
|
| VSWR |
Straight
|
Right Angle
|
| |
1.22 max @ 0-1.0 GHz
|
1.50 max @ 0-1.0 GHz
|
| |
1.35 max @ 0-3.0 GHz
|
1.63 max @ 0-3.0 GHz
|
|
Contact Resistance
|
Center Contact
|
Outer Contact
|
|
5 m max
|
2.5 m max
|
|
Mating |
Snap-on coupling |
|
Durability |
500 matings max |
| Engagement/Disengagement Force |
6 lbs max engagement/1 lb min disengagement |
| Contact Captivation |
2 lbs min axial force |
| Temperature Range |
-55C to +155C |
|
|
|
Material
|
Plating
|
|
Connector Body
|
|
Brass per QQ-B-626
|
Gold/Nickel
|
|
Center Contact
|
Male
|
Brass per QQ-B-626
|
Gold
|
|
|
Female
|
Beryllium Copper per QQ-C-530
|
Gold
|
|
Insulator
|
|
Teflon
|
None
|
|
Gasket
|
|
Silicone Rubber
|
None
|
|
Crimp Ferrule
|
|
Annealed Copper per WW-T-799
|
Same as body
|
