Mini-SMB Connectors
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Mini-SMB Connectors

Compact RF solutions for 75 Ω video and broadcast applications

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Overview

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Amphenol RF’s Mini-SMB connectors are purpose-built for compact 75 Ω systems, offering reliable broadband performance in a convenient snap-on design. Optimized for broadcast, cable, and instrumentation, these connectors combine ease of use with precision signal integrity, making them ideal for space-constrained installations.

Available in straight and right-angle PCB and cable-mount configurations, Mini‑SMB connectors are engineered to deliver professional-grade performance in applications ranging from test gear to 12G video distribution systems.

Features and Benefits
  • Precise 75 Ω impedance: Tailored for video, broadcast, and test systems—ensuring minimal signal reflections
  • Snap‑on quick connect: Fast, tool-free mating suitable for frequent field reconfigurations
  • High-frequency support: Handles up to 6 GHz, with select cable assemblies rated for 12 GHz video
  • Miniature design: Compact size fits dense layouts, ideal for modular electronics
  • Robust construction: Durable coupling mechanism rated for 500+ mating cycles
Key Technical Details
  • Impedance: 75 Ω nominal—standard for broadcast and video assemblies
  • Frequency Range: DC–6 GHz; supports 12 GHz on broadcast-grade, low-loss cables
  • Coupling Style: Push-on snap fitting for fast assembly
  • Mating Cycles: ≥ 500 cycles to maintain mechanical and electrical performance
  • Temperature Range: –55 °C to +105 °C, depending on cable and connector configuration
Applications
  • Broadcast and cable television distribution systems
  • 12G video and high-definition signal paths
  • Compact RF instrumentation and field test setups
  • Medical and industrial video/audio modules
  • Embedded systems requiring precise 75 Ω RF interconnects

Browse our full Mini‑SMB line including cable plugs, PCB jacks, right‑angle adapters, and 12 GHz-certified versions. If your project demands custom cable lengths, specific cable transmission types, or enhanced mechanical retention, contact our engineering team to design a connector solution tailored to your broadcasting and test needs.

Specifications

Mini-SMB Connectors

Electrical

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

Environmental

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

Mechanical

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

Plug
Jack

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