(7) Board-to-Board Connector
Small, Floating Design
In recent years, demand for connectors in the automotive field has been increasing due to technological innovations in automatic driving and the shift to EVs. Automotive connectors are required to have high performance such as high heat resistance and high vibration resistance. This feature page introduces a total of 12 wire-to-board, interface, board-to-board, and FPC/FFC connector series that Hirose is proud to offer for various automotive applications.
Automated Driving/ADAS Application Examples and Recommended Connectors
Highly Reliable Interface/ Wire-to-Board Connectors
Vibration Resistance : Clears the Intense Vibration Conditions Required for Automotive Use
The ZE064W Series and ZE05 Series can be safely used as automotive interface connectors where vibration is present. (The following test data is for the ZE064W and ZE05 Series)
High Heat Resistance : Suitable for Use in High Temperature Environments up to 125℃
The ZE064W Series and ZE05 Series can also be safely used as automotive interface connectors exposed to high heat. (The following test data is for the ZE064W and ZE05 Series)
Short-Circuit/Electric Shock Prevention Design (Only Specified Products)
A box-shaped female contact is used for the board-side connector. Physically insulating the connector with resin enables an innovative design that prevents both short circuit from dust adhesion and electrical shock from workers touching the contacts.
Waterproof : IP67/IP69K Compliant (Only Specified Products)
Safe for use as an interface connector for automotive equipment where waterproofing is required.
Suited for use in 8.9G environments, this small connector with enhanced vibration resistance is ideal for the engine room. Making the male and female contact out of the same materials eliminates the effects of heat shrinkage for heat resistance up to 125℃. Furthermore the space-saving design of the 0.5 terminal tab size and 2mm pitch contributes to reduced equipment size.
The ZH05 Series withstands temperatures of up to 125℃ and has high vibration resistance. In addition, it is designed to prevent short circuits caused by dust adhesion as well as electric shocks to workers. This automotive connector can be used for a wide range of automotive electronic components such as automotive batteries, automotive chargers, and various ECUs.
Suited for use in 8.9G environments, this compact and waterproof connector with enhanced vibration resistance is ideal for the engine room. The thickness and length of the female contact were made as thin and short as possible, resulting in an 80% reduction in size compared to competitors. The waterproof performance is compliant with IP67/IP69K standards.
Wire-to-Board Connectors for Internal Connection
Small Connector with 1mm Pitch
GT50 is a small connector with 1mm pitch and 5.97mm height. The applicable cable size is a thin 0.08sq, about 75% lighter* than the 0.3sq size cable that is often used for internal connection in automotive applications.
* Weight comparison with generic cables
Vibration and Heat Resistant Automotive Quality Contact Design
The optimized cable crimp area and the stabilizer that prevents the contacts from moving inside the housing ensures vibration resistance even in harsh automotive environments. Compared to a similar sized connector used in consumer appliances, GT50 reduces wear on the contacts. In addition, the heat resistant material of the crimp contact ensure 125℃ heat resistance.
A compact and highly robust connector meeting all automotive requirements. The contact design and material provide high vibration resistance and 125℃ heat resistance, making it ideal for automotive applications.
Floating Board-to-Board Connectors
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. 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.
140℃ Heat Resistance Withstands Harsh Automotive Temperature Environments
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) and verified that there are no issues. FX26 can be used at any connection point in sets exposed to high heat including inverters.
FX26 is a high spec. connector with 140℃ heat resistance that was developed with the aim of providing performance for engine room usage. 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.
*The CES Innovation Awards are based upon descriptive materials submitted to the judges. CTA did not verify the accuracy of any submission or of any claims made and did not test the item to which the award was given.
The FX23/FX23L combines high speed transmission with ±0.6mm floating range. 3A power contacts are provided to reduce the number of positions. Stacking height variations from 8 to 30 mm are available to suit your equipment design.
（7）Small Board-to-Board Connector
Heat Resistance Up to 125℃ Withstands Harsh Automotive Temperature Environments
A variety of rigorous tests required for in-vehicle products, including a thermal shock test (-55 to +125℃ for 1,000 cycles) and a high temperature storage test (125℃, 1,000 hours), have been performed to verify that there are no issues.
High Speed Transmission : Responds to the Increasing Needs for High Speed Transmission in the Automotive Sector with Reliable Performance and Design
With the increasing resolution of cameras and sensors, connectors are required to have excellent high speed transmission characteristics. Connectors supporting high speed transmission speeds up to 16Gbps (PCI Express 4.0 compliant) meet cutting-edge needs.
Metal Shielding for Superior EMI (Only Specified Products)
The shield plate on the receptacle side and the contacts between the shield plate and the retention tabs placed at the four corners strengthen grounding and thus greatly significantly reduce EMI.
FPC-to-Board Connector Combining Heat Resistance, Contact Reliability and Robustness while Supporting 16Gbps High Speed Transmission
The DF40T Series is an FPC-to-Board connector ideal for applications requiring high reliability, such as 125℃ heat resistant automotive electrical equipment. The high speed transmission up to 16Gbps and the unique terminal design ensure high contact reliability and retention force.
The shielded type prevents EMI via the receptacle side shield plate.
Highly Reliable Terminal Design (Contact Reliability, High Retention Force, Robust)
When assembled, the connector has sufficient mating length in order to absorb tolerance and maintain contact reliability. During mating, ribs on both sides of the connector fit together to absorb impact stress for enhanced robustness.
Connection Just by Insertion (Only Specified Products)
Unlike the conventional connection process of opening the actuator, inserting the FPC/FFC and then closing the actuator, connection is completed by just inserting the FPC/FFC with One Action FH. There is no need to touch the actuator when connecting, preventing actuator damage. Locking is completed at the same time as the FPC/FFC insertion so incomplete mating does not occur. The work time and number of operation steps are reduced to 1/3rd for a significant reduction in man-hours.
125℃ Heat Resistance : Suitable for Use in High Temperature Environments Up to 125℃ (Only Specified Products)
We have conducted strict tests required for automotive devices including temperature cycle tests (-55 to +125℃, 1,000 cycles) and heat resistance tests (125℃ for 1,000 hours) and verified that there are no problems.
The FH75 Series supports a high temperature of 125℃ due to the enhanced contact material and design. Also, high contact reliability is achieved with the high FPC/FFC retention force and two-point contact design. This FPC/FFC connector is ideal for automotive devices because it meets the severe test conditions of the industry and ensures high reliability in harsh environments.
The FH52K is a high heat resistant variation of the best-selling FPC/FFC connector the FH52 Series, which has been widely adopted. The FH52K maintains the conventional features of high FPC/FFC retention force with a robust locking design, and achieves up to 125°C operating temperature by using heat resistant contact materials.
High Frequency / High Speed Wire-to-Board Connectors
Noise Resistant Design
The external current route on the shield case enables a shorter path to the GND plane, such as the board, for enhanced noise resistance.
Satisfies Severe Automotive Requirements
These connectors have passed various rigorous tests required for automotive products, including shock, vibration resistance, thermal shock and high heat-temperature testing.
The compact GT43 Series has passed various noise tests and offers stable transmission performance. GT43 supports 3GHz high frequency. A wide variety of colors and key variations are available to suit your application needs.
The fully shielded design supports high speed transmission up to 2.2Gbps. This connector is ideal for automotive devices, meets severe automotive requirements and ensures high reliability to withstand harsh environments.