The FunctionMAX family of connectors from Hirose are Board-to-Board connectors Engineered for the demands of modern electronics systems, Hirose's FunctionMAX connectors redefine board-to-board connections. Featuring a floating contact design, these connectors excel in handling high transmission speeds crucial in industrial applications. As the name "FunctionMAX" implies, this product family has been designed with a mission to meet all the needs of the industrial market with maximum functionality.
Benefits of the Floating contact design
The floating design of the FunctionMAX family offers a degree of "play" between the contacts during the mating operation, this allows the connector to absorb alignment errors caused by tolerances in the PCB layout or assembly process. The illustration shows the spring portion of the terminal absorbs stress from alignment errors, this reduces the stress applied to the mounted parts enhancing reliability and preventing solder cracking
Traditional rigid board-to-board connectors without floating design mean PCBs must be aligned perfectly with each other to ensure reliable mating, any misalignment creates stress on the connector which can lead to solder joint failures or open circuit connections.
Another benefit of the floating design is realised when multiple connectors are used on a PCB or the boards are fixed to an external chassis, in this case it is very difficult to control the various tolerances of the PCBs and chassis to get each connector perfectly aligned with its mating half, the floating design allows for much wider tolerances making the PCB design and assembly easier.
High Speed Transmission capability
Hiroseʼs connectors have been developed to meet high speed communication needs with their solid performance and design for such fields as telecommunications, automotive, factory automation and medical devices. Return loss (reflection) is reduced by impedance matching, including the floating portion, based on the pitch of the terminals, signal contact width, distance from the ground terminal, and dielectric constant of the insulation material. Insertion loss (attenuation) is carefully controlled by taking into consideration the pitch of the terminals, the width and thickness of the signal contact, the dielectric loss tangent of insulation materials, and other factors to optimize the design, including the floating portion, this helps minimize resonance and ensures that the insertion loss is proportional to the frequency. And finally cross talk (leakage) is reduced by optimising the terminal and ground pin assignment between the differential pairs according to the terminal pitch and transmission rate, this minimizes resonance and crosstalk.
FunctionMAX overview
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Comprising of 11 series the FunctionMAX family of board-to-board connectors includes both a floating design and high-speed transmission capabilities and are offered in pitches from 0.4mm to 7.62mm making them suitable for a wide range of applications.
FX25 Series – 0.4mm Pitch
The FX25 series is Hirose’s smallest pitch board-to-board connector with floating contacts and features the lowest stacking height for a right-angle connector. The FX25 series connectors offer a 40% PCB space saving compared with a 0.5mm pitch connector.
Download FX25 Datasheet
FX10/11 Series – 0.5mm Pitch
The FX10/11 series focus on high-speed transmission and offer a wide range of product variations with different stack heights and pin counts. The FX10/11 series are two of the most popular floating design connectors available from Hirose and offer a great blend of performance, versatility and cost effectiveness.
FX22 Series – 0.5mm Pitch
The FX22 series was developed as a coplanar version of the FX20, the connectors enable co-planar connections with multiple connectors. The FX22 series also incorporates a highly reliable two-point contact and an ultra-low-profile design which allows developers to reduce the size of the finished product design.
Download FX22 Datasheet
FX8/8C Series – 0.6mm Pitch
The FX8/8C series are another popular FunctionMAX connector family, this is due to the wide variation of pin counts available and the variety of stacking heights. The compact design of the FX8/8C series allows for easy mounting and supports excellent high-speed transmission.
Download FX8/8C Datasheet
ER8 Series – 0.8mm Pitch
The low-profile design of the ER8 series supports high-speed transmission and enables high density mounting, the connectors are also available in Halogen free materials.
Download ER8 Datasheet
FX18 Series – 0.8mm Pitch
The FX18 series is a core member of the FunctionMAX family. Its user-friendly design offers a broad range of options including power terminals which can also be used for sequence and grounding applications and act as multi-function terminals.
Click here to read more about the FX18 series
Download FX18 Datasheet
FX27 Series – 0.8mm Pitch
The FX27 series of card edge connectors include floating design and high-speed transmission capability. Designed as an interface between top and bottom card edge boards, it can be also used as a parallel connector. Stacking height, wiring and component mounting are all customizable to provide a wide range of options.
Download FX27 Datasheet
FX30B Series – 3.81mm / 7.62mm Pitch
The FX30B series was originally developed for power supplies, however features such as its special misalignment absorbing design similar to floating connectors and a UL/C-UL and TÜV compliant design makes the FX30B suitable for use in other high-power applications.
FX20 Series – 0.5mm Pitch (For Automotive Applications)
The FX20 series was the first floating connector series developed at Hirose, its innovative design with independent two-point contact stands the test of time and provides high contact reliability and resistance to vibration and impact.
Download FX20 Datasheet
FX23/23L Series – 0.5mm Pitch (For Automotive Applications)
The FX23/23L series has a floating design and is capable of high-speed transmission. The connector system also saves space with its hybrid design which combines data contacts and power contacts in the same connector. The FX23/23L series connectors are also suitable for use with conformal coatings applied after soldering.
Click here to read more about the FX23 series
Download FX23/23L Datasheet
FX26 Series – 1.0mm Pitch (For Automotive Applications)
The award winning FX26 series was developed with the aim of creating a product with specifications that can be used in the harsh, high temperature environments of engine bays and other similar applications. The connector features a two-point contact with a vibration resistant and floating design that can be used safely under continuous vibration and in high temperature environments up to 140°C.
Download FX26 Datasheet
The FunctionMAX family of connectors are suitable for a wide variety of applications including Consumer, Medical, Industrial, Automotive, Harsh Environment, Power Supply, Energy Storage Systems, Chargers, Metering, Instrumentation, Robotics, Communications Equipment, Sensors, Motor Drives and many more besides.
Hirose create interconnections for demanding applications that enable customers to select the most suitable products from an extensive product lineup, the FunctionMAX family pursues the highest level of functionality for its floating design and high-speed transmission connectors, as well as cutting-edge technology for tomorrow’s innovative applications.
Anglia are offering customers FREE samples of the FunctionMAX family of board-to-board connectors from HIROSE, please fill in the form below to register your interest now.
Free samples are subject to availability.
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