SMA connector

SMA connector is a very popular thread coupling miniature coaxial connector. Which has the excellent performances of high reliability,high mechanical strength，high durability,and optimum electrical properties.are widely used to connect RF coaxial cables for mobile communication equipments and electroniccommunicaion instruments. The interface dimensions and technical characteristics are in accordance with the specifications of MIL-C-39012.IEC169-15 and CECC22110.

The SMA Connetor is a versatile connector designed for RF and microwave applications, facilitating seamless interconnections in electronic systems operating at frequencies up to 18 GHz and beyond. This adapter combines the reliability of the SMA connector with the compact design of the SMB interface, making it ideal for tight layouts where space is at a premium.

The SMA connector, known for its semi-precision miniature design, comes in various forms, including male, female, straight, right angle, bulkhead, flange, front mount, and rear mount. The typical coupling mechanism is threaded, featuring a hexagonal nut that should be securely tightened using a torque wrench to ensure a proper connection. This adaptation enhances system flexibility while maintaining performance integrity.

SMA female to smb plug adapter dimension in mm

Plug（female）		receptacle（male）
Letter	minimum	maximum	minimum	maximum
A	/	/	0.356	0.406
B	/	/	2.896	2.996
C	/	3.43	3.557	3.657
D	-0.07	0.12	3.125	3.225
E	-0.07	0.2	/	/
F	3.35	/	0.89	1.778
G	/	/	0.839	0.939
H	/	/	1.397	1.447
I	/	/	1.982	2.082
J	/	/	2.744	2.844

Material

Body	brass, gold plated or stainless steel passivated
Male center contact	brass gold plated
Female center contact	beryllium bronze, gold plated
Insulator	PTFE
Gasket	Silicon rubber
Crimp ferrules	copper alloy,nickel or gold plated

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