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FAKRA SMB RF Connector

FAKRA Connector

RF Connectors > FAKRA SMB RF Connectors

Description

With recent advancements in communications technology and increased consumer demand for a diverse array of on-board telematic services, RF communications systems have become indispensable components of the modern automobile.

To keep RF interconnection costs low and ensure high levels of electrical and mechanical performance for telematic applications, the German and American automotive industries have standardized a high-performing, cost-effective RF connector based on the FAKRA and USCAR standards.

Utilizing a standard metal SMB connector embedded within a plastic housing that can be designed with multiple colored codes for easy identification, FAKRA connectors are designed to perform up to 4GHz and meet the particular mechanical and environmental requirements of the automobile industry.

Amphenol offers both its original FAKRA connectors, which incorporate machined components, as well as its FAKRA II connector series which utilizes die cast as well as stamped and formed components.

Features & Benefits

  • 12 different mechanical and color codes
  • Plastic housing with locking feature and audible clicking noise
  • Minimum of 100 mating cycles
  • Frequency range of DC - 4 GHz
  • Usable on multiple coaxial cables such as RG-58, RF-174, RG-316, RG-178, and other micro-cables
  • Available in numerous connector configurations such as straight and right angle for cable as well as edge-launch and PCB designs

Applications

  • Global Positioning Satellite
  • Satellite Radio
  • Vehicular Internet Access
  • Remote Vehicle Diagnostics
  • Bluetooth
FAKRA SMB Specifications
Impedance 50 Ω
Frequency Range DC - 4 GHz
Performance Spec SAE-USCAR-17, 18
VSWR
  DC - 2 GHz 2 GHz - 4 GHz
Spec requirement 1.40 max 1.50 max
Straight SMB (cable group 1) 1.15 max 1.25 max
Right angle SMB (cable group 1) 1.20 max 1.35 max
Straight SMB (cable group 4) 1.10 max 1.15 max
Insertion Loss Spec requirement: < .3 dB max from DC - 3GHz
Up to 1 GHz: < .1 dB
Up to 2 GHz: < .2 dB
Up to 4 GHz: < .3 dB
Insulation Resistance 1000 MΩ minimum
Center Contact Resistance Center contact: < 20 mΩ
Outer contact: < 10 mΩ
Dielectric Withstanding Voltage > 1,000 VRMS at sea level
Mating Durability 100 mating cycles minimum
Plastic Housing Engagement Force Engagement: = 20 N
Disengagement: = 25 N
Cable Retention Force Cable group 1: = 110 N
Cable group 4: = 180 N
Coding 12 mechanical and color codings
Plastic Housing PBT with 15% Glass Fiber
Secondary Locking Clip PBT with 15% Glass Fiber
Center Contact Male: Brass
Female: Beryllium copper
Body Brass
Barrel Brass
Retainer Ring Beryllium copper
Ferrule Copper
Insulator TFE or TPX
Center Contact Gold
Body Cable Types: Nickel
Solder Types: Nickel, Gold, Tin
Barrel Nickel
Ferrule Nickel