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FX23 Series, 0.5mm Pitch, Floating, Board-to-Board Connectors for High Speed Transmission

The connector range consists of headers and receptacles that allow a parallel or right angle board- to-board connection.

  • The header has a unique floating structure embedded inside the fixed base of the housing. This allows an alignment movement in XY directions of +/- 0.6mm minimum (max) to absorb mounting misalignment.
  • High speed transmission of up to 8 Gbps (max) is supported by the innovative contact design to ensure impedance-matching.
  • The ground contacts are situated between the adjacent differential pair contacts to reduce crosstalk for better performance.
  • The connector has a hybrid structure featuring power and signal contacts. Four built-in power contacts that can carry up to 3A (Amps) current rating each are located along the mating guides to save space. The signal contacts can carry 0.5A each.

Ideal applications are industrial equipment, broadcast equipment, POS terminals, medical devices, BTS, servo motors, PLC and car navigation equipment.

Key Features

  • Contact sizes: 80, 100, 120 (other sizes under development)
  • Current rating: 0.5A signal/ 3A power (4 x power contacts total = 12A)
  • Pitch: 0.5mm
  • Versions: Right angle, Parallel
  • Stack height: 15, 20, 25 & 30mm (some heights under development, please check availability) n Voltage rating: 50V
  • Mating cycles: 100


FunctionMAX is the best selection for board-to-board connectors. Superior performance is ensured in diverse environments.



The FunctionMAX family is comprised of both floating structure and high-speed connectors. These series possess unique features in addition to floating functions and high-speed transmission to meet requirements of various industrial applications.


  • The floating structure offers a degree of "play" between the contacts during mating and allows the connector to absorb alignment errors.
  • Hirose’s connectors meet high-speed communication needs with their solid performance and structure.
  • With such needs as tele-communications, automotive, factory automation and medical devices.
  • Serie: FX10 - FX20 - FX22 - FX23 - FX8 - FX18 - FX30B  









    FunctionMAX. In pursuit of the ultimate floating and high-speed transmission functions