What is an SMA Connector (Usage/Details)

March 28, 2022 2 min read

SMA Connector is one of the connectors that work in the multi-megahertz range. They were developed as a minimal connector interface for coaxial cables. The screw-type coupling mechanism explains its fitting with the wire. You can expect an SMA connector to provide you with a 50 Ω impedance. The initial working capacity with which this connector was designed ranged from zero to 12 hertz.

However, different variations of the SMA Connectors have been introduced over time that works over 12 hertz.

Usage of SMA Connectors:

Are you wondering where the SMA connectors are used? The list of their usage in different areas is long. But most of the applications of SMA connectors are a bit old. Some of these usages include handheld radios and mobile telephone antennas.

But it doesn’t mean that the SMA connectors have gone obsolete. You can also find them in microwave systems, Wi-Fi antennas, and USB Dongles.

Design of the connector:

Like most connectors, SMA connectors have two separate parts termed male and female. The male SMA connector is 0.99 mm in diameter with a center pin. It is surrounded by a barrel with inside threads.

As opposed to it, the female side of the SMA connectors is based on the center sleeve surrounded by the barrel with outside threads.

With such a setting, both parts of the connectors complement each other and help form a connection.

Summing up:

Available with multiple variations, SMA connectors have been in use since 1960. Even today, they are part of the setups which require multi-hertz management. Understanding them in a better way can ensure their proper usage and help you gain the best results.