HIROSE ELECTRIC CO., LTD.

Covers -55°C to +125°C thermal environments
FPC to Board connector DF40T series for automotive applications

FPC to Board connector with heat resistance,
contact reliability and durability.
16 Gbps high-speed transmission capability

厳しい熱衝撃/耐熱試験をクリア。-55~125℃の温度環境をカバー

The DF40T series is an FPC to Board connector ideal for applications requiring high reliability, such as automotive electronic components that are heat resistant to 125°C. It delivers speeds of up to 16 Gbps and is PCI Express 4.0 compliant. The unique terminal structure ensures high contact reliability and retention force, and the use of ribs to absorb impact stress enhances durability.

The FPC to Board connector is equipped with a "Heat resistance, high-speed transmission, and reliability", so it is ideal for use with ADAS, front cameras, rear/side cameras, millimeter wave radar, and LiDAR that are essential for automatic driving.

Characteristics and Dimensions - FPC to Board connector conforming to the specifications for automotive -

Example of dimension DF40TB- * DS-0.4V
Rated Current 0.3A
Rated Voltage 30V AC
Operating Temperature -55°C to +125°C
(Includes the temperature rise by current flow)
Contact Resistance 90 mω Max. (100 mA DC or 1000 Hz)
Withstanding Voltage 100 V AC for 1 minute
Insulation Resistance 50 Mω or more (100 V DC)
Durability 30 times

Features - Optimized design for automotive connectors

Heat-resistant up to 125°C. Withstands automotive temperatures

The receptacle terminal is made of a material resistant to heat, and the stress relaxation characteristics are improved by designing the spring suitable for heat resistance. As a result, the DF40T series can maintain its shape and characteristics even under rapid temperature changes and high temperatures.

Various rigorous tests required for automotive products, including the thermal shock test (+125°C to -55°C for 1,000 cycles) and the high-temperature storage test (125°C, 1,000 hours), have been performed and verified to be satisfactory.

FPC to Board connector capable of 16 Gbps high-speed transmission

With the increasing resolution of cameras and other sensors, connectors are required to have excellent high-speed transmission characteristics. The DF40T series meets cutting-edge needs by providing high-speed transmission of up to 16 Gbps. It also complies with the PCI Express 4.0 standard.

FPC to Board connector capable of 16 Gbps high-speed transmission

Highly reliable terminal structure (Contact Reliability, High retention force, Rugged)

Terminal structure to ensure effective fitting length to absorb assembled tolerance, to maintain contact reliability, and to keep high retention force by providing groove in contact part of header terminal when retention force is low core number. In addition, the ribs on both sides of the connector fit when engaged to absorb the impact stress and provide a robust product.

Highly reliable terminal structure (Contact Reliability, High retention force, Rugged)

Test results
- Automotive specifications for safety and reliability -

Test item Test method What to look for
Mechanical performance Vibration resistance frequency, 10 ~ 500 Hz; total amplitude,
0.7 mm; acceleration, 49 m/s2,
3 axes, 8 hours each
*Electrical electrical discontinuity of 1 μs or greater
*Contact Resistance
*Appearance
Shock Acceleration of 490 m/s2, duration of 11 ms,
3 cycles in both directions of half-sine wave 3 axes
Environmental performance Temperature cycle Temperature: 55°C to + 125°C Time:
1,000 cycles per 30 minutes
*Contact Resistance
*Insulation Resistance
*Appearance
High-temperature and high-humidity storage Leave for 1,000 hours at 60 ± 2°C and 90 ~ 95% humidity.
Temperature and humidity cycle 10 cycles (240 hours) in a temperature of -10 to + 65°C and a humidity of 90 ~ 96%
Heat resistance Leave for 1,000 hours at 125 ± 2°C. *Contact Resistance
*Appearance
Cold hardiness Leave for 1,000 hours at -55 ± 3°C.
Salt spray Allow to stand for 96 hours at 35 ± 2°C in 5% salt water spray. *Contact Resistance
Sulfur dioxide
(JIS C 60068-2-42)
40 ± 2 ° C temperature, 80 ± 5% relative humidity, 25 ± 5 ppm for 96 hours

Applications

Connection Image (Connection between boards of on-board cameras)

Connection Image (Connection between boards of on-board cameras)

Usage example of automotive application

Can be used as FPC to Board connector inside electronic equipment such as camera, millimeter wave radar and LiDAR.

Can be used as FPC to Board connector inside electronic equipment such as camera, millimeter wave radar and LiDAR.

Various variations

Series DF40 DF40G DF40GL DF40T DF40GT
Product Image DF40 DF40G DF40GL DF40T DF40GT
Connector shape Receptacle/Header Receptacle/Header Receptacle/Header Receptacle/Header Receptacle/Header
Operating Temperature -35℃~+85℃ -35℃~+85℃ -55℃~+85℃ -55℃~+125℃ -55℃~+125℃
Shield - -
Positive lock - - - In planning
Floating - - - - -
Stacking
height (mm)
1.5、2.0、2.5、3.0、3.5、4.0 1.5、3.0 1.5 1.5、(2.0)、(2.5)、(3.0)、3.5、(4.0) ※1 1.5
Number of cores 10、12、20、24、30、34、40、44、50、60、70、80、90、100、(120) ※1 10、30、48、70 44 20、30、34、40、50、60 ※2 10 ※3

※1 () is under development.
※2 The DF40T series can handle the same number of cores as the DF40 series.
※3 The DF40GT series can handle the same number of cores as the DF40G series.

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