SMA Connector
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SMA Connector

Female SMA


SMA connectors are a type of coaxial connector that was developed in the 1960s for use in high-frequency microwave and millimeter-wave applications. They are named for their screw-type mating mechanism, which allows for a secure connection between two SMA connectors. SMA connectors are commonly used in a wide range of applications, including telecommunications, networking, military and aerospace, medical equipment, and more.

Types of SMA

There are several different types of SMA connectors, including SMA male and SMA female connectors, as well as straight ,right-angle, flange mount, bulkhead mount, connectors. SMA connectors are also available in a variety of different lengths and configurations to suit different applications.

SMA connectors are also available in RP- male SMA and RP-female SMA versions. The RP(reverse polarization) connector commonly used for antenna application to secure the connection.


  • Thread coupling mechanism

  • Crimping or soldering contact

  • 50 impedance up to 18GHz

  • Light weight,compact design

  • Anti-vibration performance

Interface Dimension:

sma connector interface

Specification Of SMA Connector

Impedance50 Ohm
Frequency RangeDC - 18 GHz
Return loss≥ 30 dB Typical
Insertion loss≤0.04 dB x √f GHz
Voltage Rating500 Volts RMS Continuous
Dielectric Withstanding   Voltage1500 VRMS Max
Insulation Resistance≥ 5000 MΩ Min
Center Contact Resistance≤3 mΩ Max
Outer Contact Resistance≤2 mΩ Max
RF Leakage-100 dB Max (DC-1GHz)
Power Handling200 W @ 2 GHz @ 25ºC
Temperature Range−65°C to +165°C
Thermal ShockMIL-STD-202, Method 107 (Test Condition B)
CorrosionMIL-STD-202, Method 101 (Test Condition B)
VibrationMIL-STD-202, Method 204 (Test Condition B)
Mechanical ShockMIL-STD-202, Method 213 (Test Condition I)
Moisture ResistanceMIL-STD-202, Method 106
AltitudeMIL-STD-202 Method 105 (Test Condition C)
Mating Cycles500 Min
Coupling MechanismThreaded
Interface SpecificationMIL-STD-348, IEC 61169-15, MIL-PRF-39012, CECC 22210
Mating Torque0.8 Nm to 1.1 Nm

Read more articles to know more about SMA connector:

How to install SMA connector with RG178 cables?

Are all SMA connectors 50 ohms?

What is the difference between SMA and SMB connector?

What are SMA connectors?

What materials are the made of SMA connectors?

How to test SMA RF connector for PCB?

Can you extend SMA cable?

Are all SMA connectors the same size?

Do I need SMA or RP-SMA?

How long is a SMA connector?

What is the difference between SMA and MCX connector?

Our company, Zhejiang LenoRF Industry co. LTD, occupies an area of 30 hectares and is equipped with world class equipment to make millimeter wave connectors and phase stable cables. We specialize in coaxial connectors, cable assembly, and passive devices. Our current products are the latest millimeter wave connector and phase stable cable on the market.

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