Product Overview

SMB Series RF Connector

The SMB Series from Aptiv Interconnect is a miniature coaxial RF connector engineered for applications demanding both reliability and ease of use. Its signature quick connect/disconnect snap-on coupling mechanism facilitates rapid assembly and frequent mating cycles, while its compact footprint is ideal for space-constrained designs. Operating efficiently up to 4 GHz, SMB connectors deliver dependable electrical performance, making them a versatile choice for telecommunications, automotive GPS and infotainment, test and measurement instruments, wireless modules, and internal connections across a wide range of electronic devices.

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SMB Series RF Connector product image

Features and Benefits

  • Snap-On Coupling Mechanism: Quick, tool-less mating/un-mating for faster assembly and maintenance.
  • Compact, Miniature Design: Space-saving, enabling higher density component placement.
  • Broad Frequency Range: Operates up to 6 GHz for low to mid-frequency RF applications.
  • 50 Ohm Impedance: Standardized for compatibility with most RF systems (75 Ohm versions available).
  • Good Electrical Performance: Reliable signal transmission with low VSWR and insertion loss.
  • Cost-Effective: Economical solution for high-volume commercial/industrial applications.
  • Versatile Termination Options: Available in various configurations (straight, right-angle, bulkhead, PCB mount) with crimp or solder styles.

Specifications, Parts, and Filters

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Impedance
50 Ohms (standard); 75 Ohms also available
Frequency Range
DC to 6 GHz
Voltage Rating
335 VRMS (max. typical)
Dielectric Withstanding Voltage
750 VRMS (min. typical)
Contact Resistance
Center Contact
≤ 6.0 mΩ (typical)
Outer Contact
≤ 2.0 mΩ (typical)
VSWR (Voltage Standing Wave Ratio, Straight Connectors)
50 Ohm
Typical ≤ 1.30 @ 4 GHz
75 Ohm
Typical ≤ 1.25 @ 1 GHz
VSWR (Voltage Standing Wave Ratio, R/A Connectors)
50 Ohm
Typical ≤ 1.55 @ 4 GHz
75 Ohm
Typical ≤ 1.50 @ 1 GHz
Insertion Loss
≤ 0.15 dB @ 3 GHz (typical)

Coupling Mechanism
Snap-on
Mating Cycles
≥ 500 cycles
Mating Force
Low insertion and withdrawal forces, facilitating easy handling.
Cable Retention (typical)
Varies by cable type and termination method
Body Material
Brass
Center Contact Material
Beryllium Copper, Phosphor Bronze, or Brass
Insulator Material
PTFE

Temperature Range
-55°C to +165°C
Thermal Shock
MIL-STD-202, Method 107, Test Condition B
Vibration
MIL-STD-202, Method 204, Test Condition B
Shock
MIL-STD-202, Method 213, Test Condition I
Moisture Resistance
MIL-STD-202, Method 106
Corrosion (Salt Fog)
MIL-STD-202, Method 101, Test Condition B

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