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||<1.34||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|
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