SMB connector is smaller than SMA RF connector. SMB connector is designed to have snap-on coupling. Besides, SMB connector series are available for RF cable types, PCB type and edge mount type. SMB connector commonly is used for 0~4GHz (50ohm) and 0~2GHz (75ohm).
Wellshow Technology manufactures various SMB connectors and custom SMB RF cable assemblies in Taiwan. We can provide good quality SMB connector in short time and welcome OEM or customized RF connector. Contact us by email or call us 886-2-24270488 to start business!
SMB Connector Series
SMB Connectors is a smaller version of the SMA with snap-on coupling and was designed in 1960’s. The snap-on design permits rapid connection and disconnection in limited spaces.
50 ohm SMB usually is specified up to 4 GHz, and 75 ohm SMB connectors are specified for only 2 GHz.
SMB series was designed originally with female contact in male body or male contact in female body. These connectors are popularly used in telecommunication and automotive, GPS tracking, GSM cellular, WLAN equipments.
- Cable Connectors (straight and right angle) for flexible, semi-flex and semi-rigid cables
- PCB connectors (straight and right angle)
- Panel connectors in various flanges
- Cable Assembly
- Radio Boards
- Test and Measurement
- Process Controls
- Video Systems
SMB Interface Dimensions
SMB Connector Technical Characteristics
|Impedance||50 ohm or 75 ohm|
|Frequency range||0 ~ 4 GHz for 50 ohm|
|0 ~ 2 GHz for 75 ohm|
|VSWR||Straight type ≤ 1.3 max.|
|R/A type ≤ 1.5 max.|
|Dielectric withstanding voltage||1000 V rms min. for RG316, RG402|
|750 V rms min. for RG178|
|Working voltage||335 V rms max. for RG316, RG402|
|250 V rms max. for RG178|
|Center contact resistance||≤ 6.0 mΩ (Milliohms max.)|
|Outer contact resistance||≤ 1.5 mΩ (Milliohms max.)|
|Insulation resistance||≥ 103 MΩ (Megohms min.)|
|Contact Retention||4 lbs min.|
|Mating Durability||500 cycles min. (For Beryllium copper contact only)|
|Temperature Range||Teflon −65ºC ~ +155 ºC|
|Vibration||MIL-STD-202 Meth. 204|
|Corrosion resistance||MIL-STD-202 Meth. 101|
|Center contact||Brass for male,|
|Beryllium copper or Phosphor bronze for female|
|Crimping sleeve||Annealed Brass|
|Body plating||Gold (Au)|
|Center contact plating||Gold (Au)|