The Hirose BM54 series of floating board-to-board connectors provides high-speed, robust connections in a miniature form factor. The 3.8mm width of the connectors is the smallest of any connector with a floating capability as wide as ±0.4mm in the x/y plane.
The floating structure on the plug side absorbs assembly tolerances, allowing boards to mate securely. This structure, combined with a dual-point contact design, ensures stable two-point connections which resist shock and vibration.
Rated for operation over a temperature range of -55°C to 125°C, the BM54 series meets demanding automotive requirements. It also supports high-speed interfaces including PCIe Gen4 up to 16Gbits/s, and MIPI up to 4.5Gbits/s.
Stacking Height | X/Y Float Range | Z Float Range | Pin Count Options |
3.0mm | ±0.4mm | ±0.3mm | 20, 30, 40 |
3.5mm | ±0.4mm | ±0.4mm | 10, 20, 30, 40, 50 |
4.0mm | ±0.4mm | ±0.4mm | 10, 20, 30, 40, 50 |
4.5mm | ±0.4mm | ±0.4mm | 10, 20, 30, 40, 50 |
