RF connector types and frequency range
15 Nov

The name of the RF coaxial connector is often defined by the inner diameter of the outer conductor, 3. 5mm, 2. 4mm, 1.85mm 1mm, etc. Or defined by the inner conductor diameter and the outer diameter of the outer conductor, such as 7/16, 1.6/5.6 connectors.

According to the standard characteristics of each RF connector, the following table shows the difference between RF coaxial connectors and frequency range.

RF Connector Type Maximum Operating Frequency Speciality VSWR Inner Diameter of the Outer Conductor Maximum Working Voltage Withstanding voltage Application Fields
DIN7/16(L29) 7.5GHz Large thread; High power capacity <1.3 16mm(Inner diameter:7mm) 2700Vrms 4000Vrms Broadcast television antenna system. Mobile communication connection, Microwave communication system and cable connection
14mm 8.5GHz Thread Type <1.3 14.29mm Metrology and research fields; Material testing
N 18GHz Mid Power Thread Type <1.3 7mm 1000Vrms 2500Vrms Radio equipment; Instrument(with 75Ω version, but does not match 50Ω)
7mm 18GHz Small Thread Type <1.3 7mm Network Analyzer
BNC 4GHz Bayonet <1.3 6.5mm 500Vrms 1500Vrms Widely used in radio equipment and electronic instruments (75Ω version, matching 50Ω)
TNC 11GHz Thread (The Thread of BNC Connector) <1.3 6.5mm 500Vrms 1500Vrms Radio equipment (military) and instruments
F 1GHz 75Ω Thread Type <1.3 170Vrms 500Vrms Radio and television industry
DIN1.6/5.6(L9) 1GHz 75Ω Small Thread Type 5.6mm 330Vrms 1000Vrms Radio equipment; communication equipment (with 50Ω version, matching 75Ω)
SAA(CC4,DIN1.0/2.3) 4.8GHz(50Ω); 1.5GHz(75Ω) Small Straight Clamp Type <1.25 250Vrms 750Vrms RF cable (DIN41626 standard) in the high-frequency circuit of printed board high and low frequency hybrid connectors
SMA 12.4GHz(Flexible cable); 18GHz(Semi-rigid cable) Small Thread Type; Compatible with 3.5mm and 2.92 Connectors <1.25(Flexible straight cable) 4.13mm 335Vrms 1000Vrms Microwave equipment and digital communication system (conversion circuit of the same axial waveguide microstrip); Test instrument
SMB 4GHz(75Ω,2GHz) Small Snap on Clamp Type


3mm 250Vrms 750Vrms Communication equipment; Navigation system; Electric instrument (with 75Ω version, in most cases not matching 50Ω)
SMC 10GHz Small Thread Type <1.25 3mm 750Vrms 750Vrms Military equipment such as radar navigation (the internal structure is identical to SMB)
3.5mm(APC-3.5) 33GHz Small Thread Type; Compatible with SMA and 2.92mm Connectors 3.5mm Precision instrument
2.92mm(K) 40GHz Miniature Thread Type; Compatible with SMA and 3.5mm Connectors 2.92mm 750V Precision instrument
2.4mm(APC-2.4) 50GHz Miniature Thread Type; Compatible with 1.85mm Connectors 2.4mm 750V Precision instrument
1.85mm 65GHz Miniature Thread Type; Compatible with 2.4mm Connectors 1.85mm 500V Precision instrument
SSMA 35GHz Miniature Thread Type <1.07 2.79mm 250Vrms 750Vrms Mobile communication device
SSMB 3GHz(50Ω); 2GHz(75Ω) Miniature Snap on Clamp Type <1.22 2.08mm 250Vrms 500Vrms Micro-miniature radio equipment and communication equipment (with 75Ω version)
SSMC 6GHz Miniature Thread Type <1.25 2mm 250Vrms 250Vrms Miniaturized instrument
MCX 6GHz Small Snap on Clamp Type <1.22 1.6mm 250Vrms 750Vrms Antenna; GPS system; Base station application; Cable assembly; Electrical components; Instrumentation; Transmission system; Wireless communication system; Telecommunication system; (with 75Ω version)
MMCX 6GHz Microminiature Snap on Clamp Type <1.22 1mm 250Vrms 500Vrms Wireless base station; telecommunication system; Radio frequency test system; Electronic equipment; Network application; Aeronautical equipment; GPS system; Satellite communication system; Personal computer memory card (PCMCIA) card; Cable assembly
1mm 110GHz Miniature Thread Type 170Vrms Precision instruments; Weapons

Elecbee is an electronic components online store, which major sales RF coaxial connectors as the chart above. Our products have passed ISO certification and one year warranty! Our website support order directly and payment. 

Any questions please live chat with us or send emails to us at