SMA M for PCB solder with Stand off

Description

The SMA Male PCB Solder Connector with Standoff is a precision RF interface engineered for direct mounting onto printed circuit boards. While most PCB connectors are female (jack) to accept antennas, the SMA Male (Plug) version is the preferred choice for internal board-to-board stacking, modular RF sub-assemblies, and specialized testing interfaces where a direct plug-in connection is required.

Precision Engineering with Integrated Spacers

The defining technical advantage of this connector is the inclusion of mechanical standoffs (spacers) on the mounting base. These small legs elevate the connector body slightly above the PCB surface. This gap is critical for high-reliability manufacturing, allowing for thorough flux removal, easy visual inspection of solder fillets, and improved thermal management by allowing airflow beneath the connector.

Key Technical Advantages:

• Integrated Standoffs: Built-in spacers ensure a consistent mounting height and prevent “solder bridging” between the signal pin and the ground plane.

• Enhanced Solderability: The elevated design allows solder to flow more freely around the 4-leg ground posts, creating a superior mechanical bond to the PCB.

• Straight Vertical Orientation: Ideal for “top-entry” connections in stacked PCB architectures or compact RF modules.

• Low VSWR & High Frequency: Optimized for a stable 50 Ohm impedance from DC to 12.4 GHz (and up to 18 GHz depending on board layout), ensuring maximum signal throughput.

• Premium Gold Plating: The high-purity gold finish on the brass body and center contact ensures low contact resistance and long-term protection against oxidation.

Key Features

• Connector Type: SMA Male (Plug) with internal threads and center pin.

• Orientation: Straight (Vertical).

• Mounting Type: Through-Hole Solder with Integrated Standoffs.

• Impedance: 50 Ohm (Standard for professional RF).

• Body Material: Gold-Plated Brass for maximum conductivity.

• Insulator: PTFE (Teflon) to withstand high-temperature soldering.

Technical Summary