The SMA Series is a sub-miniature providing excellent electrical performance for microwave
applications up to 18 GHz. They us a threaded interface and are constructed of high quality brass ensuring durability and mechanical strength. The main features are high mechanical strength, high durability and low VSWR.
Applications
Base Stations |
Instrumentation |
Process Controls |
Telecommunication |
Wireless LAN |
PC/LAN |
Microwave components |
Cable Assemblies |
Mil/Aero |
Interface Mating Dimensions:
Interface Dimension in Millimeters |
Male |
Female |
mm |
mm |
|
Min. |
Max. |
|
Min. |
Max. |
A |
1.24 |
1.30 |
A |
1.24 |
1.30 |
B |
|
4.18 |
B |
|
4.18 |
C |
4.53 |
4.59 |
C |
4.6 |
4.67 |
D |
1.91 |
2.54 |
D |
1.88 |
1.98 |
E |
0.90 |
0.94 |
E |
5.28 |
5.49 |
F |
1/4-36UNS-2A |
F |
1/4-36UNS-2A |
G |
2.54 |
3.43 |
G |
4.32 |
|
H |
.315 HEX |
H |
0.05 |
0.20 |
|
|
|
I |
0.05 |
0.25 |
Technical Characteristics
Electrical
Impedance |
50 ohm |
Frequency Range |
0 - 18 GHz |
Working Voltage |
RG-178, 196: 250 VRMS max.
RG-174, 188, 316, .085": 335 VRMS max.
RG-58, 141, 142, 223, .141": 500 VRMS max. |
Dielectric Withstanding Voltage |
RG-178, 196: 500 VRMS
RG-174, 188, 316, .085": 750 VRMS
RG-58, 141, 142, 223, .141": 1000 VRMS |
VSWR |
Straight |
1.20 max. |
Right Angle |
1.25 max. |
Contact Resistance |
Center Contact |
5 Milliohm Max. |
Outer Contact |
1 Milliohm Max. |
Insulator Resistance |
5000 Mega ohms min. |
Material
Part Name |
Material |
Finish |
Body, Metal Parts |
Brass, Stainless Steel |
Gold, Nickel or Passivated |
Center Contacts |
Plug: Brass |
Gold |
|
Jack: Beryllium Copper, Phosphor Bronze |
Gold |
Insulator |
PTFE |
|
Crimp Ferrule |
Annealed Copper |
Gold or Nickel |
Clamp Gaskets |
Silicone Rubber |
|
Mechanical & Environmental
Engagement Force |
2 in-lbs. max |
Disengagement Force |
2 in-lbs max. |
Coupling Nut Retention |
60 lbs. min. |
Coupling Proof Torque |
15 in-lbs. min. |
Contact Retention |
6 lbs. min. |
Durability (Mating) |
500 cycles min. (For Be/Cu Jack Contact only) |
Temperature Range |
-65°C ~ 165°C |
Vibration |
MIL-STD-202 Meth. 204/D |
Salt Spray |
MIL-STD-202 Meth. 101/B |
Thermal Shock |
MIL-STD-202 Meth. 102/C |