Mini-SMB Connectors

Mini-SMB Connectors

Amphenol RF's Mini-SMB 75 ohm connector family provides broadband capability through 4 GHz. Its snap-on design offers a quick connect/disconnect and is available with die cast components in non-critical areas to provide a low cost solution.

The Mini-SMB also features a reduced housing allowing circuit miniaturization and efficient space utilization. These connectors are built in accordance with requirements of MIL-C-39012 and the interface is in compliance with MIL-STD 348.

Features and Benefits
  • 75 ohm snap-on coupling allows for quick installation
  • Same interface as 50 ohm SMB
  • Available with diecast components which offers low cost solution
  • Allows board-to-board mounting with a low insertion force
  • Telecommunications
  • Switching Equipment
  • Networking Systems

Mini-SMB Connectors Specifications


Impedance 75 Ohm
Frequency Range DC - 2 GHz
Voltage Rating 335 Volts RMS Continuous
Dielectric Withstanding Voltage 750 VRMS Max
VSWR  (Return Loss)  
     Straight DC - 2 GHz 1.33 (-17 dB) Max
     Right Angle DC - 2 GHz 1.43 (-15 dB) Max
Insulation Resistance  1000 MΩ Min
Center Contact Resistance 6 mΩ Max
Outer Contact Resistance 1 mΩ Max
RF Leakage 55 dB Max (DC - 2 GHz)
Insertion Loss .1 √(f(GHz)) dB Max
     Straight 1.5 GHz 0.30 dB Max
     Right Angle 1.5 GHz 0.60 dB Max


Temperature Range −65°C to +165°C
Thermal Shock MIL-STD-202, Method 107, Condition B
Corrosion MIL-STD-202 Method 101 (Test Condition B)
Vibration MIL-STD-202, Method 101, Condition B
Mechanical Shock MIL-STD-202, Method 204, Condition D
Moisture Resistance MIL-STD-202, Method 213, Condition B


Mating Cycles 500 Min
Coupling Mechanism Snap-On
Engagement Force ≤ 14 lbs (62N)
Disengagement Force > 2 lbs (9N)
Note: These characteristics are typical and may not apply to all connectors.
Connector configurations may affect performance.

Interface Dimensions