This widely used and hard-wearing connector is the primary point of connection for the antenna and may even have to provide mechanical and structural support as part of an antenna's design. They are designed to connect by soldering or crimping to semi-rigid coaxial cable. These antennas are capable of intercepting electromagnetic energy and translating it into electrical current and vice versa. An SMA connector serves as the primary channel through which radio frequency signals can flow between the antenna and the device it is attached to. SMA antennas are a diverse group of radio frequency antennas that possess an SMA connector for attachment to a coaxial extension cable or other radio frequency hardware. Visually it is similar to the common household 75 Ohm Type F connector that screws into cable boxes, the design varies by 2mm and the two cables cannot b connected without an adapter SubMiniature Version A (SMA) is an RF coaxial connector designed for semi-precision applications. The SMA connector is one of several RF connector designs to connect coaxial cables and antennas while preserving the signal. RF coax cables cannot be stripped and soldered together without signal loss. Both connectors are insulated with polytetratluoroethylene (PTFE) dialectric.Īn antenna with an SMA connector couples to an SMA cable: RF coaxial antenna cable shielded to prevent signal degradation. The female connector has a central receptacle for the pin, also coated with nickel or gold, the threads external to the outer casing. The barrel screws on to an SMA female antenna or coax with threading spaced at 36 threads per inch. The male connector features a central pin coated with nickel or gold. They are also cost-effective when designed in gold-plated brass, nickel-plated brass, or stainless steel. SMA connectors have a relatively durable screw coupling (good for 500 couplings at recommended torque) and are resistance to vibration. SMA antenna and coax connectors feature 50 Ohm impedance, drawing DC from 0GHz up to 18GHz. A 433MHz antenna is also likely to be an SMA antenna. These connectors provide low return and insertion loss and are available in a straight configuration to complement most industry-standard cable types.Ĭlick here to learn more about SMA RF Connectors on everything RF.Ĭlick here to learn more about IP67 Rating on everything RF.SMA was the connector of choice for most applications until RP-SMA began to replace SMA in the late 1990s, as the more popular option, Therefore there are far more RP-SMA antenna options than SMA antenna options: We have many SMA to RP_SMA antenna cable and adapter options that enable you to connect an RP-SMA antenna to an SMA cable or connector.ĭata Alliance offers SMA antennas for WiFi, LTE, GSM, CDMA, Bluetooth, base stations, radio astronomy, hand-held radios or telephones, machine-to-machine communications. ![]() ![]() These SMA bulkhead jacks join an expanding portfolio of IP67 and non-IP67 RF interconnects that are currently available as standard solutions. The micro-coax cable can also stabilize electrical characteristics even if bent while continuing to provide thermal resistance. The front mount bulkhead configuration offers extra protection when it is fastened to the inside of the panel or enclosure. IP67 SMA panel mount jacks offer excellent RF performance up to 7 GHz and feature a threaded coupling mechanism for added vibration resistance. These connectors are well-suited for industrial automation, kiosks, and smart meter applications. These front mount jacks are engineered for 1.32 and 1.37 mm micro-coax cable types which are often used in designs with space constraints or that require a high degree of flexibility. Amphenol RF has announced the expansion of their popular SMA product series with additional waterproof IP67 options.
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