Direct-solder attachment is the most efficient method of attaching semi-rigid cable. The cable is stripped and the connector contact soldered to the cable conductor. (Some SMA connectors do not have a separate contact; for these types, the conductor of .141" semi-rigid cable extends through the connector insulator and is used as the contact.)

The prepared cable is inserted into the body assembly, and the jacket (outer conductor) of the cable is soldered to tail of the connector body.

Captive contacts (as shown) are strongly recommended for connectors used with semi-rigid cable, to prevent movement from cable flexure or temperature changes after assembly.