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SMA

SMA connectors are precision connectors for microwave application up to 18 GHz and higher. the high mechanical strength, high durability and low VSWR indicate the characters. Together with semi-rigid cable hi-grade lines can be installed. SMA receptacles(launchers) used to provide transition to coax from waveguide, form MIC-paks, and from stripline or microstrip on PCB.

Selection Matrix
Gender
Orientation
Cable Group
Panel
Impedance
Interface Mating Dimensions Technical Data

Male Femal
LTRMillimeters / Inches
MinimumMaximum
A Ø6.48 Ø.255 Ø6.73 Ø.265
B Ø4.34 Ø.171 Ø4.59 Ø.181
C Ø4.10 Ø.162 Ø4.15 Ø.163
D 0.64 .025 1.14 .045
E 0.00 .000 0.25 .010
F 2.59 .102 3.35 .132
G 2.03 .080    
H 0.00 .000 0.25 .010
I 3.71 .146 4.32 .170
J 2.03 .080 2.29 .090
K Ø0.90 Ø.036 Ø0.93 Ø.037
L Ø1.25 Ø.049 Ø1.29 Ø.051
LTRMillimeters / Inches
MinimumMaximum
A Ø4.60 Ø.181 Ø4.67 Ø.184
B Ø5.28 Ø.208 Ø5.49 Ø.216
C Ø4.10 Ø.162 Ø4.15 Ø.163
D 0.38 .015 1.14 .045
E 3.81 .150    
F 0.00 .000 0.25 .010
G 1.88 .074 1.98 .078
H 0.00 .000 0.25 .010
I 2.54 .100    
J 1.91 .075 2.41 .095
K Ø1.25 Ø.049 Ø1.29 Ø.051
L Ø0.94 Ø.037 Ø0.99 Ø.039

Electrical:

Nominalimpedance50
Frequency uo to12.4 GHz flexible cable,18GHZ semi-rigid cable
VSWR1.15+0.02xf GHZ for straight connector typical
1.25+0.025xf GHz for right angle connector typical
Working voltage335 Volts rms.
Dielectric withstanding voltage500 Volts rms.
Insulation resistance5000 M min.
Contact resistanceCenter conductor 3.0 m
cuter conductor 2.0m

Mechanical&Environmental:

Mating"1/4""-36 UNS thread coupling"
Cable retention6 kgf typical
Durability>500cycles
Coupling nut retention>18 kgf
Temperature range-55℃ to 1+55℃
Vibrationper MIL-STD-202 Method 204 Test Condition D
Corrosionper MIL-STD-202 Method 101 Test Condition B

Material/Finish:

 MaterialFinish
Connector bodyBrass per (QQ-B-626 or JIS-C3604B)
Zinc alloy (Zinc 5)
Stainless stell per (QQ-S-764 class 303		Nickel or gold plating

Passivated
Center contact maleBrass per (QQ-B-626 or JIS-C3604B)Gold plating
Center contact femaleBeryllium copper per(QQ-C-530 or JIS-C1730)Gold plating
InsulatorPTFENone
Crimp ferruleAnnealed copperSame as body
GasketSilicone rubberNone

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