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High Performance
Board-to-Board Connectors

As the name "FunctionMAX" implies, this product family is a series of Board-to-Board connectors from Hirose with a mission to meet all the needs of the industrial market with maximum functionality.

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Top-quality Industrial Interconnects

Since Hirose first began developing connectors in the 1970s, it has been continuously generating new series to create entire product families. Powerful marketing support along with applied knowledge and tireless effort has enabled us to develop technical innovations year after year. Recently, Hirose has been working even more vigorously on research and development for two key themes : floating structure design and high speed transmissions.

Floating functions

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Floating connections correct alignment issues due to assembly errors
The floating structure offers a degree of "play" between the contacts during mating and allows the connector to absorb alignment errors.

Leading example of floating structures

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No alignment errors

Common connectors can only be used if center lines are perfectly aligned.

Connector center lines are both in proper alignment.Connector center lines are both in proper alignment.

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Alignment errors present

Floating connector can be used even when center lines are not perfectly aligned with each other.

Alignment errorAlignment error


  • Joint moves along with the mating connector

  • Protective parts prevent stress generated by movement from affecting mounting leads

  • Structure allows movement of moveable parts using the spring force of the terminal

Benefits of a floating function

Multiple floating connectors can be used on the same PCB.

These connectors contribute to the device design by absorbing assembly errors and help to reduce the need for corrective re-work operations.

Spring portion of the terminal absorbs stress imparted by alignment errors. This reduces the stress applied to the mounted parts. This also enhances reliability and prevents solder cracking.

High-speed transmission

Reliable performance to meet the needs for future communication speeds.
Hirose's connectors meet high-speed communication needs with their solid performance and structure.
With such needs as tele-communications, automotive, factory automation and medical devices.

Designed to support high-speed transmission needs.

FunctionMAX is designed based on a differential transmission system and offers excellent noise resistance and high-speed signals.

  • Impedance

    Hirose optimizes the shape of terminals that serve as communication paths, accounting for contact pitch and insulation materials. The connectors conform to general specifications for substrates, targeting a matching value of (Ω) ± 10%. FunctionMAX high-speed transmission connectors are designed to fully ensure impedance matching.

  • Crosstalk

    FunctionMAX connectors optimize ground assignment of contacts between differential pairs to reduce crosstalk, accounting for contact pitch and transmission rates.

  • Insertion/return loss

    This is the most commonly used parameter for judging signal quality of high-speed connectors. Characteristics are basically adjusted by matching impedances.

  • Skew

    Paths (terminal lengths) within differential pairs, adjacent differential pairs, and opposed differential pairs are designed to be equal. Note : Some products do not have equally-arranged lengths between opposite differential pairs.

  • Eye pattern

    The shape of an eye diagram is depended on parameters from ① through ④, and a reasonable eye opening can be obtained in most of cases. However, it does not mean that we can achieve good signal integrity as long as the eye is opened and be regardless of other parameters with an inverse-calculation way of thinking.

  • Signal Integrity(SI) support system

    Hirose supports customer decision-making by providing connector simulation models, (e.g. Touchstone and IBIS), SI supports, or conformance checks for signal standards.

Product

FunctionMAX is the best selection for board-to-board connectors
Superior performance is ensured in diverse environments.

The FunctionMAX family is comprised of both floating structure and high-speed connectors. These series possess unique features in addition to floating functions and high-speed transmission to meet requirements of various industrial applications.

FX20 Series image

FX20 Seriesmore info

0.5mm Pitch

This is the first floating connector series developed. With the high contact reliability structure of independent two-point contact designs, the series can satisfy the severe requirements by industrial applications as well as in-vehicle units.

FX22 Series image

FX22 Seriesmore info

0.5mm Pitch

Developed as a coplanar version of the FX20. Enables co-planar connections with multiple FX20 connectors. This series also incorporates a highly-reliable two-point contact structure. The ultra low-profile design contributes to the reduced size of finished product sets.

FX30B Series image

FX30B Seriesmore info

3.81mm Pitch/7.62mm Pitch

This series is developed for power sources. Features a special misalignment absorbing structure similar to that of floating connectors. Compliant with safety standards (UL/C-UL and TÜV)

FX23/23L Series image

FX23/23L Seriesmore info

0.5mm Pitch

This series achieves two functions in one connector: floating function and high-speed transmission. Saves space by incorporating a power hybrid structure. Connectors are also suitable for use with conformal coatings applied after soldering.

FX18 Series image

FX18 Seriesmore info

0.8mm Pitch

This series is a core product developed for FunctionMAX. User-friendly with a broad range of product options. The power terminals can also be used for sequence and grounding applications and act as multi-function terminals.

FX8/8C Series image

FX8/8C Seriesmore info

0.6mm Pitch

A long-standing connector series with strong market support. Features wide product variations with different stack heights and pin counts. Compact structure allows easy mounting, and excellent high-speed transmission

FX10 Series image

FX10 Seriesmore info

0.5mm Pitch

This series focuses on high-speed transmissions. Wide product variations with different stack heights and pin counts. This series has enjoyed strong market support. The three-piece design allows for a floating structure.

FunctionMAXTM: Product Specification Comparison Chart

Available

Series FX10 FX20 FX22 FX23/23L FX8/8C FX18 FX30B
FX10 Series image FX20 Series image FX22 Series image FX23/23L Series image FX8/8C Series image FX18 Series image FX30B Series image
Pitch 0.5mm 0.5mm 0.5mm 0.5mm 0.6mm 0.8mm 3.81mm
7.62mm
Pin Count 80-168 20-140 40-80 20-120 60-140 40-140 2-5
Connection Parallel


4-13mm


15-30mm

 


8-30mm


3-16mm


10-45mm


20-30mm

Vertical  

 

 

Coplanar    

   

Cable              
Rating Current 0.3A 0.5A 0.7A 0.5A 0.4A 0.5A 13-17A
16-19A
Voltage 50V AC 50V AC 50V AC 50V AC 100V AC 100V AC 150+V AC/DC
600V AC/DC
Mounting SMT ALL SMT

   

   
SMT +
Through-hole
reflow
   

 

 
Through hole            

Additional
features
Floating
(Mis-alignment
absorption)


±0.3mm


±0.6mm


±0.6mm


±0.6mm

   


±0.3mm

High-speed
transmission


15Gbps

   


8Gbps


3.125Gbps


10Gbps

 
Multi-point contact  

     

Power/
Signal hybrid
     


3.0A

 


3.0A

 
Shielding

           
Sequential
structure
         

 
Standard             UL/C-UL/TÜV
Series Pitch Pin Count
FX10 0.5mm 80-168
FX20 0.5mm 20-140
FX22 0.5mm 40-80
FX23 0.5mm 20-120
FX8 0.6mm 60-140
FX18 0.8mm 40-140
FX30B 3.81/7.62 2-5
Series Connection
Parallel Vertical Coplanar Cable
FX10


4-13mm

     
FX20


15-30mm

   
FX22    

 
FX23


15-30mm

   
FX8


3-16mm

     
FX18


10-45mm

 
FX30B


20-30mm

 
Series Mounting
SMT Through hole
ALL SMT SMT +
Through-hole
reflow
FX10

   
FX20

   
FX22  

 
FX23  

 
FX8

   
FX18  

 
FX30B    

Series
Floating
(Mis-alignment
absorption)
High-speed
transmission
Multi-point contact
FX10


±0.3mm


15Gbps

 
FX20


±0.6mm

 

FX22


±0.6mm

 

FX23


±0.6mm


8Gbps

 
FX8  


3.125Gbps

 
FX18  


10Gbps

 
FX30B


±0.3mm

 

Series Additional
features
Power/
Signal hybrid
Shielding Sequential
structure
Standard
FX10  

   
FX20        
FX22        
FX23


3.0A

     
FX8        
FX18


3.0A

 

 
FX30B       UL/C-UL/TÜV

Note: Specifications shown here are for the standard items. Please consult our sales representatives in case of application requirements outside the standard range.

HIROSE ELECTRIC CO.,LTD.

Making Hirose's original technologies the first in the world
Ever-evolving product development

As a result of our efforts in leading-edge fields, we now possess sophisticated technologies and diverse development capabilities that we are able to offer a lineup of well over 50,000 products. It is especially our policy to continuously ensure that at least 30% of these products (in terms of sales ratio) are new products.

Even as the increasing needs of lighter and more compact devices, there has also been growing demand including faster transmission speeds and environment-resistant capabilities in recent years. As a result, the functions and performance of connectors are becoming progressively more sophisticated and diversified. Hirose responds with advanced and leading-edge development to meet all connector needs. This allows us to supply the world's markets with high value-added products.

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