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The FunctionMAX family comprises of board-to-board power connectors that have floating structures and high speed transmission capability for industrial applications

As the name “FunctionMAX” implies, this product family is a series of board-to-board connectors from Hirose that have been designed to meet the requirements of the industrial market with maximum functionality.

The FX8/C, FX20, FX22, FX30B, FX23 & FX10 series allow alignment compensation by either embedded floating structure or using interposers and high misalignment absorption. This offers a degree of "play" between the contacts during mating and allows the connector to absorb alignment errors. The benefits of the floating or misalignment absorption allow multiple connectors to be used on the same board. These connectors contribute to the device design by absorbing assembly errors and help to reduce the need for corrective re-work operations.

The FX20, FX22, FX30B series incorporate highly reliable dual contacts. Each contact has a different vibration characteristic due to different contact forces that widens the frequency range to avoid resonance. This allows high vibration resistance and increased contact reliability.

The FX23, FX18, FX8/C & FX10 series are designed on a differential transmission system and offers excellent noise resistance and high-speed signal transmission.



 FX20 Series – 0.5mm Pitch

 FX22 Series – 0.5mm Pitch

Floating design, Dual contact, Right angle, Parallel

Floating design, Dual contact, Coplanar

FX30B Series - 3.81 / 7.62mm Pitch

FX23 Series – 0.5mm Pitch

Floating design, Power, Dual contact, Right angle, Parallel, Coplanar

Floating design, High-speed, Power/Signal Hybrid, Right angle, Parallel 

FX18 Series – 0.8mm Pitch

 FX8/FX8C Series – 0.6mm Pitch


High-speed, Power/Signal Hybrid, Right angle, Parallel, Coplanar

High-speed, Parallel

 FX10 Series – 0.5mm Pitch

Floating design, High-speed, Parallel




Suitable applications are devices that utilise multiple connectors on a PCB; also industrial controllers, medical equipment, servers, smart meters, BTS, PLC, measurement equipment industrial motors, IoT (Internet of Things) devices and many others.