FX31 Series Floating High-Current Connector

The 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.