140°C floating connector resists vibration and misalignment in vehicle ECUs

January 8, 2026

The FX26 series from Hirose Electric are board-to-board connectors for high-temperature environments. A floating structure decouples board movement, supporting reliable stacking near heat and vibration sources.

The Hirose Electric FX26 series are floating board-to-board connectors with strong vibration resistance, providing high reliability when used in automotive systems that experience substantial mechanical stress.

 

The connectors have two-point contacts using materials rated for 140°C operation so that connection is maintained close to hot components. The connectors, with ±0.7mm float in X and Y directions, and ±0.75mm tolerance in the Z direction, provide tolerance for the assembly process on the production line. The design also prevents misalignment during mounting, keeping installation simple, even when visibility is limited.

 

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

Features

  • 1.0mm contact pitch
  • 0.5A rated current
  • 125V ac/dc rated voltage
  • 10 mating cycles
  • Number of contacts: 20, 30, 40, 50, 60

Applications

  • Automotive systems:
    • Battery, motor, and EPS control units
    • ADAS
    • Powertrain inverters and converters
    • Infotainment systems
    • Heads-up displays
    • Navigation modules
EXTRA_Hirose_FX26

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