Types of RF and Microwave Connectors

June 30, 2023

Types of RF and Microwave Connectors

There are many types of RF and microwave connectors

Micro- miniature RF and microwave connectors

	Name	Description	Size	Frequency Range	Impedance	Application
Micro-Miniature	MMCX	Micro-miniature coaxial (MMCX) connectors feature a more robust interface for greater durability.	Micro-miniature - smaller than MCX	6GHz	50Ω	Ideal for high volume, wireless SMT or PCMCIA applications in cellular base stations, cellular phones and personal communicators. MMCX connectors are also used in global positioning systems (GPS) and wireless LAN (WLAN) applications.

Sub-miniature RF and microwave connectors

	Name	Description	Size	Frequency Range	Impedance	Application
Sub-Miniature	1.0 / 2.3	1.0 / 2.3 coaxial connectors require sub-miniature 50Ω slide-on or screw-on connectors.			50 Ω and 75Ω	Designed telecommunications systems
	MCX	Miniature coaxial (MCX) provide good electrical performance and are used to address the rapid implementation of the U.S. digital cellular PCN infrastructure.	Miniature	Provide broadband capability through 6 GHz	50 Ω and 75Ω	Used in applications where weight and physical space are limited. MCX connectors are also used in global positioning systems (GPS) and wireless LAN (WLAN) applications.
	SSMB	Sub-SMB (SSMB) connectors are 30% smaller than SMB connectors.	30% smaller than SMB connectors	35GHz	50Ω	Well-suited for board-to-board applications and are designed for use with semi-rigid cables.
	SMA	Subminiature-A (SMA) directly interface the cable dielectric without air gaps. They are not intended for permanent connections.		DC to 18GHz	50Ω	SMA connectors are intended for use on semi-rigid cables in components.
	SMC	Subminiature C (SMC) connectors accept flexible cables with diameters as large as 3.17 mm or 0.125".	Smaller than SMA connectors	7 to 10 GHz.	50Ω or 75Ω devices	Base stations, telecom, GPS, radios, WLAN, automotive
	SMB	Subminiature-N (SMB) connectors are snap-mount connectors.		DC to 4GHz.	Either in 50Ω or 75Ω impedances.	Base stations, telecom, GPS, radios, WLAN, automotive
	SSMA	Sub-SMA (SSMA) connectors are 30% smaller than standard SMA connectors.	Miniaturized SMA		50Ω	Military radio
	BMA / BMMA	BMA connectors feature a push-on interface and a threadless outer ground connection. They can withstand both radial and axial misalignment.	Miniature BMA connectors.	0 – 22GHz	50Ω	Equipment racks and modular instrumentation
	QMA	QMA connectors are quick-disconnecting devices that have the same internal construction as SMA connectors.		Up to 6GHz		Wireless applications
	Type F	Type F connectors have a screw-type coupling.		Up to 1.5 GHz.	75Ω	Applications include CATV, TV, and antennas.
	Type G	Type G connectors are 75Ω impedance devices with snap-on coupling.			75Ω	Well-suited for CATV applications

Minature RF and microwave connectors

	Name	Description	Size	Frequency Range	Impedance	Application
Miniature	BNC	Bayonet Neil-Councilman (BNC) BNC connectors have a slotted outer conductor and a plastic dielectric that causes increasing losses at higher frequencies. Both 50Ω and 75Ω BNC connectors are available. BNC connectors are also known as bayonet navy connectors or baby Neil connectors.		Usable above 4 GHz as long as the slots radiate signals; however, these devices may not be mechanically stable to 10 GHz.	50Ω and 75Ω	Designed for military applications, but are used widely in video and RF applications up to 2 GHz.
	MHV	MHV connectors are compact, high-voltage devices with a two-stud bayonet coupling.	Similar in size to, but not interchangeable with, BNC connectors.		NM
	Mini-UHF	Mini-UHF connectors feature a threaded coupling mechanism for reliable mating. With crimp cable termination for low installation costs, these connectors provide excellent RF performance in applications through 2.5 GHz.	Miniature version of the original UHF connector.	Through 2.5 GHz		Designed for use in cellular mobile telephone systems where size, weight and cost are critical.
	TNC	Threaded Neil-Concelman (TNC) connectors feature a threaded coupling nut for applications that require performance to 11 GHz. TNC connectors are durable, reliable devices.	Similar in size to BNC connectors	11 GHz	50Ω and 75Ω	Widely used in the cellular and mobile communication industry for equipment cabling and antenna interfaces.

Standard RF and microwave connectors

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