TXGA公告
【Notice】:TXGA Spring Festival holiday is from February15, 2026 to February23, 2026, a total of nine days, and work will resume on February 24, 2026. During the holiday, the website can place orders normally, and delivery will be arranged after the holiday. If you have any questions, you can send an email to the business manager: philomena.li@txga.com.
TXGA连接器厂家 Building Technology Cornerstone
{{ getLanguageDisplayName(lang) }} | CN | CNY
Your current browser version is too low or not supported. Please upgrade or change your browser. Recommended browsers: Chrome, Edge.

What is the standard size of SMA adapters?

The SMA adapter was designed as an OSM connector by Bendix and Omni-Spectra in the late 1950s and was one of the most commonly used RF/microwave connectors at that time.

Initially, SMA adapters were designed for 0.141" semi-rigid coaxial cables and precision connectors for microwave applications in the military industry. They were filled with PTFE dielectric. Under the conditions at the time, due to the small size of SMA connectors, It can work at a higher frequency (the frequency range for connecting semi-rigid cables is DC~18GHz; when connecting soft cables, it is DC~12.4GHz), and it has quickly become popular.

The current size of SMA adapters includes ferrule diameter, ferrule length and nut specifications. The standard sizes are 3.172mm, 9.8mm and 1/4-36 threads.

The connector spot platform TXGA provides safe, reliable and reasonably priced sma adapter spot, factory self-operated, online purchase, and one-click order. Enter TXGA [Product Center], online ordering is more convenient.