Four Star Communication

SMC


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SMC

The SMC interface features threaded coupling with 10-32 threads and is available in 50 and 75 ohm configurations.

SMC connectors offer broadband performance with low reflection DC to 10 GHz and are primarily used in telecommunications and instrumentation applications.

 

Features and Benefits

● Conforms to the interface dimensions of MIL-STD-348

● Threaded coupling ideal for applications where vibration resistance is important

● Ideal for semi-rigid cables or miniature flexible cables

 

Applications

● Antennas

● Instrumentation

● Telecommunications

● PC/LAN

 

SMC Connectors Specifications

Electrical

Items

Impedance

50 Ohm

Frequency Range

DC - 4 GHz (DC - 10 GHz on Extended Range Designs)

Voltage Rating (Sea Level)

335 Volts RMS Continuous

Voltage Rating (70,000 ft)

85 Volts RMS Continuous  

Dielectric Withstanding Voltage

 

RG-178/RG-196 Group

750 VRMS Min

RG-174/RG-316/RG-188 Group

1000 VRMS Min

VSWR  (Return Loss)

 

RG-178/RG-196 Group

 

Straight Connectors

1.30 + .04 f (GHz) DC - 4GHz

Right Angle Connectors

1.45 + .06 f (GHz) DC - 4GHz

RG-174/RG-316/RG-188 Group

 

Straight Connectors

1.25 + .04 f (GHz) DC - 4GHz

Right Angle Connectors

1.35 + .04 f (GHz) DC - 4GHz

Insulation Resistance 

1000 MΩ Min

Center Contact Resistance

6 mΩ Max

Outer Contact Resistance

1 mΩ Max

RF Leakage

-55 dB Max (2 - 3 GHz)

Insertion Loss

 

Straight Connectors

0.30 dB @ 1.5 GHz Max

Right Angle Connectors

0.60 dB @ 1.5 GHz Max

Power Handling

95 W @ 1 GHz @ 25ºC

 

Environmental

Items

Temperature Range

−65°C to +165°C

Thermal Shock

MIL-STD-202 Method 107 (Test Condition B)

Corrosion

MIL-STD-202 Method 101 (Test Condition B)

Vibration

MIL-STD-202 Method 204 (Test Condition D)

Mechanical Shock

MIL-STD-202 Method 213 (Test Condition B)

Moisture Resistance

MIL-STD-202 Method 106

 

Mechanical

Items

Mating Cycles

500 Min

Coupling Mechanism

Threaded

Interface Specification

MIL-STD-348

Mating Torque

0.3 N-m (3 in-lbs)

Note: These characteristics are typical and may not apply to all connectors.

Connector configurations may affect performance.

 

Interface Dimensions

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