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BM54 series

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BM54 series, small floating board-to-board connector, 125ºC heat resistance, for automotive applications.

HIROSE Electric Co. Ltd, a world-class manufacturer of connectors, has introduced the BM54 series of floating board-to-board connectors, the world's smallest class with a width of 3.8mm and a ±0.4mm floating range.

With the increasing number of in-vehicle cameras and LiDARs driven by autonomous driving advancements, reliable internal connections are critical. The BM54 series offers a compact solution that absorbs misalignment between boards, enhancing assembly efficiency and contact reliability.

The BM54 features a two-point contact design, ensuring a stable connection even in automotive environments with temperatures reaching up to 125°C. Its floating range of ±0.4mm in the XY directions and ±0.3mm to ±0.4mm in the Z direction further enhances durability and assembly precision.
 

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Table

Features Applications
  • 0.4mm pitch, 3.8mm width
  • ±0.4mm floating range in XY directions
  • Effective mating length of ±0.3mm to ±0.4mm in Z direction
  • 125°C heat resistance
  • High contact reliability with two-point contact design
  • Supports PCI-ex Gen4 (16Gbps) and MIPI D-PHY Ver.2.1
  • These connectors are ideal for automotive applications and are also suitable for consumer and industrial equipment, providing a robust and miniature solution for rigid circuit board connections.

 

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