FAKRA is fachkreis Automobile is the abbreviation of the Automobile Expert Group, which is converted from German and represents the RF RF signal connector used by the automotive electronics industry. Fakra is an RF connector developed by Rosenberg Germany and widely used by European and American automakers.

In what fields are RF signals used?

RF is mainly used in the field of communication, with the development of information technology, vehicle communication functions continue to increase, such as GPS global positioning system, satellite radio, vehicle Internet access, remote vehicle diagnosis and Bluetooth needs.

01 Development History

FAKRA stands for FAchKReis Automobil (a team of automotive experts consisting of engineers from BMW, Huber-Suhner,Rosenberger and others, after which Huber-Suhner related connector business and technology was merged into Rosenberger in 2010). Originally required by BMW for the antenna connection of car radios, FAKRA has become a common standard RF connector in the automotive industry and is widely used in the industry.

The original FAKRA product, released by Rosenberg in 2000, was based on the RF connector SMB interface with the addition of a plastic-case structure. The integration of the plastic-case made the FAKRA product suitable for quick assembly in the vehicle and guaranteed a stable and continuous connection.

The second generation of FAKRA products optimized the design, clarified the interface standard performance requirements, and the requirements were written into ISO2086 published in 2004

0-1. The second generation of products is mainly completed by turning.

Rosenberg released three generations of FAKRA in 2007, with cost optimizations while maintaining the performance of the second generation. The third generation of products are mainly processed by stamping (the industry also uses the way of drawing processing), which is more suitable for fully automated production.

02 Basic Introduction

2.1 Performance parameters of the FAKRA connector

According to ISO 20860 parameters.

Main electrical performance parameters: transmission frequency 0~4GHz; The characteristic impedance is 50 ohms; Maximum carrying current 1A

Main mechanical performance parameters: lock holding force ≥100N error-proof force ≥40N

2.2 Common Applications

Wireless signal transmission: vehicle AM/FM; GPS; Vehicle networking (2~4GHz, including emission); Remote control, etc.

Video signal transmission application: ADAS-based burst, mainly used in cameras.

2.3 Relevant Standards

Design standard: ISO20860; USCAR18

Verification standard: LV214; USCAR2; USCAR17

2.4 Adaptation Cables

Common cable model: RG 174; RTK 031; RG59; RG179; RG58

2.5 Waterproof performance

Use a waterproof version of the harness end connector to achieve IPX7/IPX9K waterproof rating at the connector pairing interface.

03 FAKRA standards

FAKRA originated in Germany and was developed and marketed by Rosenberger and the automaker, and subsequently expanded to Europe and North America.

Standards are based on DIN and USCAR.

Rosenberger offers plastic covers with high and low temperature resistance.

Lead-free reflow process compatible.

FAKRA connectors Electrical performance

Impedance (impedance) 500

Frequency range 0-6 GHZ

V.S.W.R (voltage standing wave ratio) ≤1.3

Insertion Loss Insertion loss

Insulation resistance (insulation resistance) 1000M MINI UHF

Center contact resistance <5ml

Working voltage ≤335 Voltage

dielectric withstanding voltage Dielectric withstanding Voltage >750 Voltage

FAKRA design features

14 color coding and mechanical card slots correct guidance correct connections prevent errors.

Fakra connector use cases

Shanghai Volkswagen infotainment system, GPS, FM, AM fakra application

04 Meaning of high-speed connector

High-speed connectors play an important role in modern technology, mainly in the following aspects:

1 to achieve high-speed data transmission: high-speed connectors can achieve high-speed data transmission, can transmit data faster, improve the efficiency and speed of data transmission.

2. Improve the performance of the device: high-speed connectors can improve the performance of the device, for example, the use of USB 3.0 connectors on the computer can achieve faster data transmission speed and improve the overall performance of the computer.

3. Support high-resolution video transmission: High-speed connectors can support high-resolution video transmission, which can achieve clearer and smoother video transmission effects.

4. Reduce power consumption: Some high-speed connectors can achieve a reduction in power consumption, for example, the use of USB-C connectors on mobile phones can achieve faster charging speed and lower power

consumption

5. Improve the reliability of the equipment: high-speed connectors can improve the reliability of the equipment, for example, the use of PCle connectors on the computer motherboard can improve the connection stability of the expansion card and the reliability of data transmission.

In short, high-speed connectors have a very important position in modern science and technology, which can achieve high-speed and efficient data transmission, improve the performance and reliability of the equipment, and are of great help to people's life and work.