SMA Extension Cable: 18-inch, 20", 22", 2-FT, 26", 28", 30-inch Male to Female
- SKU:
- Sm18iSf7
- Availability:
- In stock
- Weight:
- 0.04 LBS
Data Alliance
SMA Extension Cable
Antenna Cable: SMA Female to SMA male Extender: One end has an SMA-male and the other end has an SMA-female connector.
The length refers to the length of the cable between the connectors (not including the connectors).
Cable is double-shielded, low-loss and very flexible/easily bendable coax with black jacket. The double-shielding is a major factor in the higher quality of this cable, which translates into lower loss/better performance. Rated for outdoor use and suitable for indoor use.
Data Alliance's high-quality soldered terminations of SMA connectors with soldering provide a low-loss connection with discontinuities kept to a minimum.
We offer two options of thickness of cable (both are double-shielded):
- The LMR-100-equivalent cable-type is equivalent or better than LMR100: Has the same or better signal-loss-per-meter and flexibility as LMR100, and less attenuation (signal loss) than RG174 and RG178. The higher quality of the cable translates into lower loss/better performance. Cable is equivalent to LMR-100 in thickness. Recommended tightest continuous bend radius is 1.1 inch (28mm).
- The LMR-200-equivalent cable-type is equivalent or better than LMR200: Has the same or better signal-loss-per-meter and flexibility as LMR200, and less attenuation (signal loss) than RG58.
- Comparison of attenuation (signal loss) of LMR-100 and LMR-200.
The temperature range for operational use of these cable assemblies are as follows:
- Cables with 100-series coax: -22 F ~ +185 F (-30 C ~ +85 C)
- Cables with 200-series coax: -31 F ~ +203 F (-35 C ~ +95 C)
SMA female connector includes a bulkhead nut and washer for mounting and/or weatherproofing the connector / port:
- 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).
- Weatherproofing: Seal the hole where the female connector is mounted, by placing an O-ring between the wall of the enclosure and the bulkhead nut & washer on the female connector.
- All of our cables with SMA and RP-SMA female connectors have bulkhead mount hardware.
- The length of our standard 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.
SMA male and female diameter:
- SMA female outside diameter is 5/16" (7.9375mm): Accommodates a hex nut (bulkhead nut) with 5/16" nominal outer diameter
- SMA male inside diameter is 5/16" (7.9375mm) (the inside diameter where the threads are).
- The gender is referring to the pins inside-not the threads. SMA male has threads on inside.
SMA-Connector Materials Composition:
- Connector Body: Gold Plated Brass
- Center Contact: Beryllium Copper, Gold Plated
- Crimp Ferrule: Copper, Nickel Plated
- Insulators: PTFE
- Precision machined for low loss in ISO 9001 facilities
Other SMA Characteristics and Key Points
- SMA female connector is also called "jack" and SMA-male is also called "plug."
- We offer an SMA wrench to assist in installing antennas, cables and adapters with SMA or RP-SMA connector(s).
- SMA-female connector fits items that have an SMA-male connector.
- SMA is a round screw-type connector, with medium-sized, threaded coupling connectors that are rated for frequencies from the lowest (DC) up to 18GHz.
SMA-male has a pin inside the connector body
Compatibility with wireless applications: Our SMA extension cables' range of frequency band compatibility (from 0GHz to 18GHz), consistently low broadband VSWR, and impedance matching to 50 Ohm cables, makes them compatible, suitable and compliant for all the following applications:
- All WiFi standards: 2.4GHz and 5GHz applications: 802.11AC, 802.11N, 802.11G, 802.11B, 802.11A
- Cellular Wireless LTE / 4G, GSM / 3G WiMAX 5G: Data and voice applications
- IoT wireless, automation & Machine to Machine (M2M): Bluetooth, ZigBee, RFID, LoRa, LTE-m, NB-IoT
- Compatible with all Helium miners used in Europe, including Bobcat miners, Sensecap miners and all other Helium LongFi miners, as are all of our antenna cables and adapters with SMA-male connectors .
ROHS 3 & REACH: Compliant with restrictions on content of lead, other heavy metals and toxins.
RELATED PRODUCTS:
- See other SMA Extension Cable options: Male-Female with variations of straight and right-angle connectors.
- SMA Adapters
- SMA Male to male cables

Data Alliance
SMA Extension Cable: 18-inch, 20", 22", 2-FT, 26", 28", 30-inch Male to Female
2 Reviews
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quality cable
Extended my antennas with no loss in reception price was right. And i had it in a couple of days satisfied customer would order again
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Exactly the part I needed
I needed to extend several antennas from their mounting on a base unit to the outside of a case the base unit was mounted within. These cables matched perfectly and made the job an ease. And, for less money that it would have cost me to make them up myself. I was impressed with the selection offered, and the speedy delivery.