HIROSE ELECTRIC

Replacing the Internal Connection of Automotive Powertrains with Board-to-Board. -40 to 140℃ Operating Temperature.
Automotive, Vibration Resistance, Floating Design Connector: FX26 Series


Automotive, Vibration Resistance, Floating Design Connector: FX26 Series

The motors and inverters used in hybrid cars and EV had always had issues with heat generation and vibration. FX26 is a high spec connector with 140℃ heat resistance that was developed with aim of providing specifications for usage in the engine room.
This product has vibration resistance characteristics, a floating design and small size (1mm pitch) with two-point contacts to ensure it can be used safely even in a high temperature environment of 140℃ with continuous vibration.
・CES 2020 Innovation Award Product (Vehicle Intelligence & Transportation FX26 Series)
・JPCA Award (Japanese)


Switching to Board-to-Board for internal powertrain connection leads to  greater ease of assembly, space-saving, and cost reduction.
Space and cost are superior in board-to-board

Product Specifications

Fundamental Characteristics

Operating
Temperature
-40 to 140℃ (Includes the temperature rise by current flow)
Rated
Current
0.5A
Rated
Voltage
125V AC/DC
*32V AC (pollution degree 2) when the creepage distance
is in accordance with IEC60664-1.
Insulation
Resistance
1,000MΩ Min. (250V DC)
Withstanding
Voltage
375V AC for 1 min.
Contact
Resistance
65mΩ Max.
Mating Durability 10 times

Ideal Design for the Internal Connection of Automotive Powertrains

Vibration resistance design that clears the severe vibration conditions for equipment installed in the engine room

Standard floating connectors are vulnerable to vibration in the Z direction. However the FX26 Series solves this with its unique floating design, achieving unmatched vibration resistance.

±0.7mm floating in the X and Y directions, ±0.75mm tolerance between boards in the Z direction.

The floating portion on the header enables ±0.7mm floating in the X and Y directions and a tolerance of ±0.75mm in the Z direction between boards. The design prevents misalignment during board installation and mounting.

±0.7mm floating in the X and Y directions, ±0.75mm tolerance between boards in the Z direction.

140℃ Heat Resistance, Withstands the Harsh Automotive Temperature Environment

We have conducted rigorous tests required for automotive products, including thermal shock testing (-40 to 140℃ for 1,000 cycles) and high temperature exposure testing (left at 140℃ for 1,000 hours). We have verified that there are no issues. FX26 can be used at any connection point in sets exposed to high heat including inverters.



Hirose’s Approach to Automotive Connectors


In cases where the application will demand a high level of reliability, such as automotive, please contact a company representative for further information.