U.FL to RP-SMA-female Cable: 1-inch 2" 3" 4" 5" 6" 7" 8" 9" 10-inch Adapter


In stock
0.03 LBS

RP-SMA-female to U.FL Cables: 1-inch to 10-inch

RP SMA female to U.FL Antenna Cable / Adapter: Length options:

RP-SMA to U.FL cable coax specifications: 1.13mm, 1.32mm, 1.37mm, RG174

Compatibility with wireless applications & standards :

This antenna cable adapter's range of frequency band compatibility (from 0 to 18GHz) and 50 Ohms impedance matching, makes them suitable and compliant for all the following applications:

Coaxial Cable Types for U.FL cables: We offer six coaxial cable options for U.FL cables: All six have 50 Ohm impedance:

  • 1.13mm mini-coaxial cable (50 Ohm impedance): This is a very thin and flexible cable, with a black jacket. When connecting U.FL connector to a jack on a miniPCI card or board, often the tight space inside of cases or enclosures requires the use of 1.13mm cable, because it is very thin and flexible, so that the U.FL connector will snap down on the jack without popping off.
  • RG174: RG174 is better quality than 1.13mm: It is the best shielded of the four coax options for U.FL. RG174 has a black jacket. The higher quality of this cable translates into lower loss/better performance. This cable is rated for outdoor use and is also suitable for indoor use. Note that LMR-100 coax is too thick in diameter to use with U.FL connectors. RG174 has a black jacket.
  • RG178 has a pinkish colored jacket covering a wire braided shielding.

Special Version: We can make special orders with 1.13mm, RG174, 1.32mm, and 1.37mm coax, if you want a lower-loss, thicker cable for the shorter versions of this cable. 1.32mm and 1.37mm coax are double-shielded while also very thin (Diameter: 1.32mm and 1.37 respectively): Contact us to make a special order.

Special Version:  We have the six inch version made with 1.37mm (in stock):  Please contact Customer Service to purchase.  The part# is RSf6iUFL137.

RP-SMA female connector includes a bulkhead nut and washer:
  • This can be used to mount the connector (and thus the cable) on the wall of a network enclosure (to weatherproof the cable connection), or mount the connector on a case, panel or Printed Circuit Bard (PCB).
  • The length of our standard RP-SMA-female connector (threaded part) is 3/8 inches. We have a longer option: 14.5mm, which is available as an option. The longer 14.5mm option has an O-ring embedded in the flange to waterproof the port where the cable enters a network enclosure
RP-SMA Female Version Options RP-SMA Elongated
The version of the RP-SMA female connector on the left has an embedded o-ring, together with a wider flange, for more secure protection against intrusion of water and/or dust and dirt. It is available for some cable versions on this page, and others by special order. The longer RP-SMA-female version (top in photo) has a 14.5mm threaded section. It is available for some cable versions on this page, and others by special order.

RP SMA Characteristics and Key Information; Dimensions, Materials Composition

U.FL cable connector dimensions and gender characteristics

U.FL Connectors Characteristics
  • U.FL female has a socket. U.FL female right-angle type is the most common U.FL connector type found on U.FL cables: 95% of U.FL cables have a U.FL female right-angle connector.
  • U.FL male has a pin and is the connector: Male U.FL is the gender that is the "jack" that is embedded directly on to a circuit board on devices such as Bluetooth boards, and ZigBee radios such as XBee, Printed Circuit Boards (PCBs) and internal mini-PCI wireless cards (even though the gender is male, it is the jack U.FL connector. Hence the male connectors / jacks are very rigid.
  • The small size of U.FL connectors has made them an excellent fit in Machine-To-Machine (M2M) and IOT (Internet of Things) wireless applications, since they take up very little space in the cramped cases of small devices, such as Bluetooth beacons.
  • Gender Determination: Micro-connectors such as U.FL have gender that is counter to typical RF terminology for gender, in that "jack" is more typically synonymous with "female:" A U.FL jack on a board (PCB) is the male U.FL, and the connector that mates with the jack is the female.
  • Connecting and disconnecting U.FL connectors from the jack can be difficult to do properly without damaging the U.FL connector or jack. We offer a U.FL insertion tool to enable you to connect/insert and remove/disconnect easily, without causing any damage to the cable, connector or jack.
  • U.FL connector is also known as Ultra Miniature Coax Connectors (UMCC), and enables attaching an external antenna to a U.FL jack/connector on Printed Circuit Boards (PCBs): U.FL female mates with a female HiRose/U.FL jack, also known as U.FL-LP-66 jack/connector.

U.FL connector insertion tool for mating to a jack on a PCB Board:  Push-pull tool instructions

U.FL Connectors' Material composition

  • Male has a silver-plated phosphor bronze made the shell, and a gold-plated brass made contact.
  • Female: The shell and contact of Female U.FL connectors are made of phosphor bronze but are silver, and gold-plated respectively. Female U.FL connectors are the ones used in the termination of antenna cable.
  • U.FL connectors are precision machined. The gold-plating enables low signal loss.

The mini-PCI card in one of the photos is for compatibility-evaluation only and is not included.

Data Alliance's high-quality soldered terminations of U.FL and RP-SMA connectors with soldering provide a low-loss connection with discontinuities kept to a minimum.


All of our antenna cables and adapters pass QC test before we ship them.

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