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RF Connectors > FAKRA SMB RF Connectors
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.
| FAKRA SMB Specifications | ||||||||||||||||
| Impedance | 50 Ω | |||||||||||||||
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| Frequency Range | DC - 4 GHz | |||||||||||||||
| Performance Spec | SAE-USCAR-17, 18 | |||||||||||||||
| VSWR |
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| 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 |
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| Insulation Resistance | 1000 MΩ minimum | |||||||||||||||
| Center Contact Resistance | Center contact: < 20 mΩ Outer contact: < 10 mΩ |
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| 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 |
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| Cable Retention Force | Cable group 1: = 110 N Cable group 4: = 180 N |
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| 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 |
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| 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 |
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| Barrel | Nickel | |||||||||||||||
| Ferrule | Nickel | |||||||||||||||