The SMB series of RF coaxial connector is the type of small push-in RF connectors, and it has two types of  impedance, which are 50Ω and 75Ω. The frequency of 50Ω series can up to 4GHz, and the 75Ω series can up to 2GHz.
SMB series of RF coaxial connectors have the characteristics of small size, easily pull in and pull out, excellent electrical performance, light weight, etc., and meet the standard MIL-C-39012.
SMB series of RF coaxial connectors are suitable for the applications such as high-frequency loop connection ofwireless communication equipment and electronic instruments. It is the most widely used type of connectors.
Electrical Performance
Impedance 50 Ohm
Frequency range DC-4 GHz
Operating voltage RG178: 250 V(rms)
RG316,RG405: 335 V(rms)
Dielectric withstanding voltage RG178: 750 V(rms)
RG316,RG405: 1000 V(rms)
Conductor resistance Inner conductor: ≤6.0 mΩ (initial value)
Outer conductor: ≤1.0 mΩ (initial value)
Insulation resistance ≥1000 mΩ
VSWR Straight: ≤1.30 (typical value)
Right angle: ≤1.35 (typical value)
Mechanical behavior
Pull-in force ≤14 lbs
Pull-out force 2 lbs – 14 lbs
Center pin retention ≥4 lbs
Durability 500 times
  • Mainly used for high-frequency loop connection of radio equipment and electronic instruments, such as communication base stations.
  • Under the same conditions, it is more suitable for RF connection occasions that require small and fast installation.
Products Series
  • Connectors for coxial cables
  • PCB mounting connectors
  • Adapters
  • Tools