---
title: BM54 Series | Compact, High-Speed, Heat-Resistant Automotive Connector
description: Explore the BM54 Connector Series by Hirose - designed for automotive excellence with compact size, high-speed data capabilities, and 125ºC heat resistance.
image: https://info.hirose.com/hubfs/Image%20of%20Hirose%20Electrics%20BM54%20Compact%20Connector.jpg
---

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## **BM54 Series**

*Compact, High-Speed, Heat Resistant*

**Features: Small Floating Board-to-Board Connector, 125ºC Heat Resistance, For Automotive Applications**

- Stacking Height 3.0 to 4.5mm, Floating Range ±0.4mm, World's Smallest Width Class in Floating Board-to-Board Connectors
- Absorption of Misalignment
- 125℃ Heat Resistance for Automotive Specifications
- High Contact Reliability with Two-Point Contact
- Supports PCI-ex Gen4 (16Gbps) and MIPI D-PHY Ver. 2.1

 

[CONTACT US](https://info.hirose.com/contact?utm_campaign=Wearable&utm_source=wearablessources&hsLang=en) [MORE DETAILS](https://www.hirose.com/product/series/BM54)

[![Image of Hirose Electrics BM54 Compact Connector](https://info.hirose.com/hs-fs/hubfs/Image%20of%20Hirose%20Electrics%20BM54%20Compact%20Connector.jpg?width=716&height=587&name=Image%20of%20Hirose%20Electrics%20BM54%20Compact%20Connector.jpg "Image of Hirose Electrics BM54 Compact Connector")](https://www.hirose.com/product/series/BM54)

- [![Hirose Americas New Product Introduction (NPI) BM54 Series Connector Image2 072024 2-1](https://info.hirose.com/hs-fs/hubfs/Hirose%20Americas%20New%20Product%20Introduction%20(NPI)%20BM54%20Series%20Connector%20Image2%20072024%202-1.jpg?width=2667&height=1500&name=Hirose%20Americas%20New%20Product%20Introduction%20(NPI)%20BM54%20Series%20Connector%20Image2%20072024%202-1.jpg) **Meet the BM54**](https://info.hirose.com/hubfs/Hirose%20New%20Product%20Introduction%20BM54%202024-1.pdf?hsLang=en)
- [![12 CONNECTORS FOR AUTOMOTIVE](https://info.hirose.com/hs-fs/hubfs/12%20CONNECTORS%20FOR%20AUTOMOTIVE.jpg?width=331&height=156&name=12%20CONNECTORS%20FOR%20AUTOMOTIVE.jpg) **CONNECTORS FOR AUTOMOTIVE APPLICATIONS**](https://www.hirose.com/en/product/pr/automotive/)
- [![HiroseElectric\_BM54\_ConnectorSeries\_GlamPhoto\_June2025](https://info.hirose.com/hs-fs/hubfs/HiroseElectric_BM54_ConnectorSeries_GlamPhoto_June2025.png?width=1920&height=1080&name=HiroseElectric_BM54_ConnectorSeries_GlamPhoto_June2025.png) **WATCH VIDEO**](https://youtu.be/GYJL6zwQ5gw?si=CphkmEwqA50b0bmh)

## **EXPLORE SOLUTIONS:** Customized for Your Application

ENABLING INNOVATION

###### [Unlock next-gen connector solutions to tackle complex design challenges and drive future advancements.](https://info.hirose.com/enabling-innovation?hsLang=en)

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? Contact us today.](https://info.hirose.com/contact?hsLang=en)

 

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