Self-cleaning connector absorbs misalignment in automotive ECUs

March 5, 2026

The FX20 series from Hirose are board-to-board connectors which feature a floating structure with double-beam contacts which ensure reliable connections in high-vibration environments.

These floating board-to-board connectors provide high reliability when used in automotive systems that experience significant mechanical stress.

 

The connectors feature double-beam contacts with a self-cleaning function that reduces dust build-up in the contact path, increasing contact reliability. The connectors allow for up to ±0.8mm float in X and Y directions, providing tolerance for the assembly process on the production line. The design also prevents misalignment during mounting, simplifying installation, even when visibility is limited.

 

A range of mated heights and pin counts allows one connector family to serve multiple designs.

Features

  • 1.5mm effective mating length
  • 0.5A rated current
  • 150V ac/dc withstanding voltage for 1 minute
  • 50 mating cycles
  • Number of contacts: 20, 30, 40, 50, 60, 80, 100, 120, 140

Applications

  • Automotive systems:
    • Battery, motor, and EPS control units
    • ADAS cameras and sensors
    • Powertrain inverters and converters
    • Infotainment systems
    • Heads-up displays
    • Navigation modules
EXTRA_HiroseElectricFX20Series

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