Hirose Electric Co Ltd

FX31 Series Floating High-Current Connector

The Hirose FX31 series connector with vibration resistance, misalignment tolerance, and stable performance up to +125°C supports up to 25 A per pin and 800 V

Image of Hirose FX31 Series Floating High-Current ConnectorThe Hirose FX31 series high-current, floating board-to-board connector is engineered for internal power applications in automotive systems and related sectors such as agricultural machinery and construction equipment. With a 9.5 mm pitch, 20 mm stacking height, and a robust design, the FX31 supports up to 25 A per pin at 800 V while absorbing vibration and compensating for misalignment (±0.5 mm in X/Y and ±1.5 mm in Z). Its vibration-absorbing structure reduces PCB stress by 0.05 mm in the Z direction, and heat resistance up to +125°C ensures long-term reliability in harsh environments. The FX31 is ideal for powertrain, ECU, and other in-vehicle systems requiring stable, high-power connectivity.

Features
  • Floating structure: ±0.5 mm tolerance in X/Y directions and ±1.5 mm effective mating length in Z to compensate for misalignment
  • Vibration resistance: Absorbs PCB amplitude by 0.05 mm in the Z direction
  • High current capacity: Supports up to 25 A per pin and 800 V for demanding in-vehicle power distribution
  • Heat resistance: Stable performance up to +125°C for high-temperature environments
Applications
  • Powertrain
  • ECU and other in-vehicle systems
  • Automotive
  • Agricultural
  • Construction equipment

FX31 Series Floating High-Current Connector

ImagenNúmero de pieza del fabricanteDescripciónCantidad disponiblePrecioVer detalles
RECEPTACLE, 2POS., 9.5MM PITCH,FX31-2S-9.5SVRECEPTACLE, 2POS., 9.5MM PITCH,0 - Inmediata$3.93Ver detalles
HEADER 2POS., 9.5MM PITCH, THT,FX31-2P-9.5DSA20HEADER 2POS., 9.5MM PITCH, THT,0 - Inmediata$3.05Ver detalles
Publicado: 2025-11-25