U.FL to RP-SMA-female: 12-inch, 14-inch Cable Adapter. Low Signal loss


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  • 4
    Works great, a bit stiff

    Posted by Unknown on 8th Nov 2015

    Bought this to install into a Sony Playstation 4 to connect to an external antenna and boost Bluetooth range. Build quality of the cable is very good, but a bit stiffer than I would like for this application since it made it tricky to install. Working great so far.

U.FL to RP-SMA-female

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

One end has a U.FL connector, and the other has an RP-SMA female connector.

Coaxial cable type options for our U.FL cables:

  • 1.13mm mini-coaxial cable (Impedance: 50 Ohms): This is a very thin and flexible cable with a black jacket. When connecting a UFL connector to a jack on a mini PCI card or board, the tight space often requires a 1.13mm cable because it is very thin and flexible (diameter is 1.13mm). This very thin cable is typically needed in tight spaces inside enclosures so that the U.FL connector will snap down on the jack without popping off.
  • RG174 coax is thicker and has a lower signal loss (attenuation) than 1.13mm while also being flexible and easily bendable. RG174 is also better quality than 1.13mm and has a black jacket. The higher quality of this cable translates into lower loss and better performance. This cable is rated for outdoor use and is also suitable for indoor use. It's important to note that the LMR-100 coax is too thick in diameter to use with U.FL connectors. Using a cable with the wrong diameter can lead to poor signal quality or even damage your equipment.1.32mm coax is double-shielded while also skinny (1.32mm diameter).
  • 1.37mm coax is another low-loss option.

Comparing different characteristics of coaxial U.FL cables.

Special Orders: We offer a range of options for the thickness of the coax, providing you with the flexibility to choose the most suitable for your needs. Our special orders include RG174, 1.13mm, 1.32mm, and 1.37mm coax, allowing you to opt for a lower-loss, thicker cable for the shorter versions of this cable. Feel free to contact us to discuss and make a special order that meets your requirements.

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 on a case, panel, or Printed Circuit Board (PCB).
  • Weatherproofing: Our tried and tested method involves sealing the hole where the female connector is mounted by placing an O-ring between the enclosure's wall and the bulkhead nut and washer on the female connector. This ensures a reliable and secure weatherproof seal.

Our standard RP-SMA-female connector (threaded part) length is 3/8 inches. We also offer a longer option: 14.5mm. This extended option features an O-ring embedded in the flange, providing a waterproof port where the cable enters a network enclosure. Consider this option for enhanced weatherproofing in your network installation.

RP SMA Connector Dimensions, Material Composition, Features, and Other Key Information

U.FL female right angle connectors, cables and jacks

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" embedded directly on to a circuit board on devices such as BlueTooth boards, 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 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 a 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 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.
  • The 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): The U.FL female mates with a female Hirose/U.FL jack, also known as the U.FL-LP-66 jack/connector.

U.FL cable connector installation procedures:  Insertion tool and instructions to mate connector on jack on PCB board.

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 used in terminating antenna cables.
  • U.FL connectors are precision machined. The gold-plating enables low signal loss.

Compatibility with wireless protocols and applications:

Our UFL to RP-SMA "pigtail" cables' range of frequency band compatibility (from 0 to 18GHz) and 50 Ohms impedance matching makes them suitable and compliant for all the above applications.

RoHS 3 and REACH compliant: All of our antenna cables and RF adapters comply with RoHS 3 and REACH standards regarding the content limits of lead and other toxic materials.

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.