SMB is a small push-in locking RF coaxial connector, featuring a compact size, light weight, ease of use, and excellent electrical performance. It is suitable for connecting coaxial cables in high-frequency circuits of radio equipment and electronic instruments. It is often used on wireless devices to connect the E1 transmission cable on the base station side to the DDF small transmission box of the base station. The SMB connector is smaller in size than the SMA connector. There are two types of characteristic impedances: 50 ohms and 75 ohms. It has excellent electrical characteristics in the frequency range from DC to 4GHz. SSMB is a mini version of the SMB connector that can support up to 12.4GHz.
75Ohm RF Coaxial SMB Female Crimp Type Connector for RG179 Coaxial Cable
Overview
RF coaxial adaptor has high reliability, strong vibration resistance, mechanical and electrical characteristics of excellent performance. It is widely used in vibration and environment under the condition of radio equipment and instrument , ground launch system, and it can join all kinds of coaxial cables.
Electrical Characteristics
| Name |
SMB connector |
|
Impedance |
75Ω |
|
Frequency range |
0~2GHz |
|
Working Voltage |
330V max |
|
Withstand Voltage |
1000V rms |
|
VSWR Straight Rigth Angle |
≤ 1.2 ≤ 1.3 |
|
Contact resistance -center contact -outer contact |
≤6mΩ ≤1mΩ |
|
Insulation resistance |
≥10000MΩ |
|
Temperature range |
-55°C~+155°C |
|
Durability(matings) |
>500 |
Construction
|
Piece part |
Material |
Plating |
|
Body |
Brass |
Gold/Nickel plated |
|
Center conductor |
Brass or Phosphor Bronze |
Gold or silver plated |
|
Crimping suite |
Copper alloy |
Nickel plated |
|
O-ring sealing |
6146 silastic |
|
|
Insulator |
PTFE |
