Hirose Electric — BM28 Series FPC-to-Board Connectors

Hirose supplies the BM28 series of hybrid FPC-to-board connectors, which supports signals of up to 0.3 A per contact and power transmission at up to 5 A. The connectors can be used to create robust connections in extremely space-constrained designs, and feature guide ribs to enable self-alignment to within 0.3 mm in both the x and y directions. 

The BM28 FPC-to-board connectors feature a two-point contact structure and additional housing around the guide ribs to ensure reliable mechanical connection at all times. This also prevents damage from incorrect mating or un-mating due to shock. 

In addition to providing reliable connection of standard signals and power lines in miniaturized applications, the BM28 series supports high-speed data transmission at up to 20 Gbits/s. The pin assignment is compatible with the USB4® Gen2 standard. 

To prevent solder wicking during installation, the BM28 series connectors feature an integral molding with no gaps. The contacts are made from gold-plated copper alloy with a maximum resistance of 70 mΩ for the signal contacts and 15 mΩ for the power contacts.