Comparison Between HSD and FAKRA Connectors

　　1. Definition & Application

　　HSD (HighSpeed Data) Connectors

　　HSD connectors are designed for highspeed differential signal transmission. They are widely used in automotive infotainment, camera systems, ADAS, LVDS video, USB, and Ethernetoverautomotive networks.

　　FAKRA (Fachkreis Automobil) Connectors

　　FAKRA connectors are RF coaxial connectors primarily used for highfrequency signal transmission, such as GPS, LTE/5G antennas, satellite radio, keyless entry, and other RF communication modules.

　　2. Signal Type

　　HSD: Differential highspeed digital signals (e.g., LVDS, SerDes, USB, Ethernet).

　　FAKRA: RF signals in the MHz–GHz range (e.g., GNSS, WiFi, Bluetooth, cellular).

　　3. Transmission Speed & Frequency

　　HSD:

　　Supports up to 6+ Gbps depending on cable and shielding.

　　Used for highbandwidth data (video, highresolution cameras).

　　FAKRA:

　　Operates typically between DC – 6 GHz.

　　Optimized for RF communication rather than highbandwidth video.

　　4. Connector Structure

　　HSD:

　　4pin coaxial differential architecture.

　　Pairs are shielded and twisted, offering very low crosstalk.

　　Colorcoded & mechanically keyed.

　　FAKRA:

　　Single coaxial pin.

　　Plastic housing with 13 mechanical key codes to avoid mismatching.

　　Standardized by ISO 20860.

　　5. Main Advantages

　　HSD Advantages

　　Highspeed data capacity.

　　Excellent EMC performance.

　　Supports multiple differential interfaces (LVDS, Ethernet, USB).

　　Compact size for automotive modules.

　　FAKRA Advantages

　　Excellent RF performance.

　　Broad compatibility with antenna modules.

　　Rugged automotivegrade locking system.

　　Wide adoption in telematics and connectivity systems.

　　6. Typical Applications

Connector Type	Common Uses
HSD	Camera systems, infotainment, display links, ADAS sensors, USB hubs, automotive Ethernet
FAKRA	GPS antennas, LTE/5G modules, WiFi, Bluetooth, satellite radio, keyless entry

　　7. Summary

　　HSD is best for highspeed digital data and video transmission.

　　FAKRA is best for RF communication and antenna signals.

　　Many modern vehicles use HSD + FAKRA together, depending on system needs.