--- title: "DF40F Series: Small Floating Board-to-Board Connectors by HIROSE" description: "DF40F Series: World's smallest floating board-to-board connectors. 125ºC heat-resistant, space-saving, and ideal for in-vehicle applications like cameras." --- [![](https://info.hirose.com/hubfs/New-Hirose-Americas-Logo-2023.png)](https://www.hirose.com/us/) - [PRODUCT](https://www.hirose.com/product/) - [ABOUT US](https://www.hirose.com/us/about/) - [COMPANY NEWS](https://www.hirose.com/us/companynews/) - [CAREERS](https://www.hirose.com/us/recruitment/) - [EVENTS](https://www.hirose.com/us/event/) - [CONTACT](https://info.hirose.com/contact) - [BLOG](https://blog.hirose.com) - [PARTNERS](https://www.hirose.com/corporate/en/about/partner) - [Global](https://www.hirose.com/corporate/ja/) - Region Site ▼ - [USA](https://www.hirose.com/us/) - [EUROPE](https://www.hirose.com/eu/) - [CHINA](https://www.hirose.com/cn/) - [HONG KONG](https://www.hirose.com/hk/) - [TAIWAN](https://www.hirose.com/tw/) - [SINGAPORE](https://www.hirose.com/sg/) - [MALAYSIA](https://www.hirose.com/my/) - [KOREA](http://www.hirose.co.kr/) - [PRODUCT](https://www.hirose.com/product/) - [ABOUT US](https://www.hirose.com/us/about/) - [COMPANY NEWS](https://www.hirose.com/us/companynews/) - [CAREERS](https://www.hirose.com/us/recruitment/) - [EVENTS](https://www.hirose.com/us/event/) - [CONTACT](https://info.hirose.com/contact) - [BLOG](https://blog.hirose.com) - [PARTNERS](https://www.hirose.com/corporate/en/about/partner) - [Global](https://www.hirose.com/corporate/ja/) - Region Site ▼ - [USA](https://www.hirose.com/us/) - [EUROPE](https://www.hirose.com/eu/) - [CHINA](https://www.hirose.com/cn/) - [HONG KONG](https://www.hirose.com/hk/) - [TAIWAN](https://www.hirose.com/tw/) - [SINGAPORE](https://www.hirose.com/sg/) - [MALAYSIA](https://www.hirose.com/my/) - [KOREA](http://www.hirose.co.kr/)   ## **DF40F Series** **Compact Floating Board-to-Board Connector Solution** - 0.4mm Pitch, 3.68mm Width, Stacking Height 3.5 to 6.0mm - Absorption of Misalignment X and Y Directions : Floating Range ±0.3mm Z Direction : Effective Mating Length +0.25/0mm - Wide Variety of Stacking Heights when mating with DF40T - 125ºC Heat Resistance for Automotive Specifications - Supports High Speed Transmission PCI-ex Gen.4(16Gbps) and MIPI D-PHY Ver.1.1(1.5Gbps) [CONTACT US](https://info.hirose.com/contact?hsLang=en) [LEARN MORE](https://www.hirose.com/en/product/series/DF40F) [![DF40F Series: Small in Size, Big on Performance - Hirose's Compact Floating Board-to-Board Connector Solution](https://info.hirose.com/hs-fs/hubfs/DF40F%20connector%20product%20image.png?width=424&height=250&name=DF40F%20connector%20product%20image.png "DF40F Series: Small in Size, Big on Performance - Hirose's Compact Floating Board-to-Board Connector Solution")](https://www.hirose.com/en/product/series/DF40F) - ![DF40F Video](https://info.hirose.com/hs-fs/hubfs/DF40F%20Video.jpg?width=1278&height=898&name=DF40F%20Video.jpg) **WATCH NOW!** - ![DF40F NPI Image of Downloadable PDF](https://info.hirose.com/hs-fs/hubfs/DF40F%20NPI-1.png?width=1278&height=898&name=DF40F%20NPI-1.png) **DOWNLOAD NOW!** --- ## **EXPLORE SOLUTIONS:** Customized for Your Application SMART MANUFACTURING ###### [Discover our advanced connector technologies designed to enhance efficiency and reliability in manufacturing processes.](https://info.hirose.com/smart-manufacturing?hsLang=en)   LiDAR ###### [Learn how we enhance ADAS performance and stay ahead in autonomous vehicle technology.](https://info.hirose.com/lidar?hsLang=en)   MEDICAL ###### [Boost performance and reliability with connectors tailored for medical devices.](https://info.hirose.com/designing-medical-devices?hsLang=en)   SURGICAL ###### [Enhance precision and reliability with advanced connectors designed for surgical robotics.](https://info.hirose.com/surgical-robotics?hsLang=en)   WEARABLES ###### [Enhance durability and performance with advanced connectors for wearable technology.](https://info.hirose.com/wearables?hsLang=en)   MICRO-MOBILITY ###### [Discover innovative connectors designed to enhance performance and reliability in micro-mobility applications.](https://info.hirose.com/micro-mobility?hsLang=en)   COMING SOON ###### [More innovations coming soon!](https://info.hirose.com/contact?hsLang=en) [Don't see what you are looking for? 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