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BM28 Series, Ultra Compact, Power and Signal, FPC-to-Board Connectors for USB 3.1 Connectivity 

HIROSE has introduced the BM28 series of connectors to provide a robust, high power and space-saving connectivity solution for miniaturised applications requiring USB 3.1 connectivity.

Hirose BM28

The BM28 range of connectors consists of headers and receptacles which provide a connection between a flat printed circuit (FPC) and a board. The connector features a hybrid design which includes signal contacts rated at 0.3A (for 40 positions and under) / 0.2A (over 40 positions) and power contacts rated at 5A. When mated, the BM28’s parallel stack height is only 0.6mm with a narrow depth of 1.7mm, making this one of the smallest hybrid FPC- to-board connectors in the world. Although the connector’s dimensions are compact, performance is not compromised, and the connectors are able to offer highly reliable mechanical connection. This is due to the provision of unique 2-point contacts and a long effective mating length of 0.13mm (signal) or 0.10mm (power). The connector can support high-speed transmission up to 10Gbps and the pin assignment is compatible with the USB 3.1 second generation standard. Guide ribs are incorporated into the housing body, providing for a wide self-alignment range of 0.3mm in the X-direction and 0.3mm in the Y-direction, and permitting a smoother mating operation. The metal covering on the guide ribs enhances the robustness and prevents damage from incorrect mating or any unintended unmating due to drop impact. The integral moulding has no gaps preventing solder wicking.  

Key Features 

  • Number of contacts: 6, 10, 16, 18, 20, 24, 30, 34, 36, 40, 44, 46, 50, 58, 60 (signal) / 2 power
  • Contact pitch: 0.35mm
  • Current rating: 5A power / 0.3A signal (for 40 positions and under), 0.2A signal (over 40 positions)
  • Stack height: 0.6mm
  • Voltage rating: 30V
  • Mating cycles: 10
  • Halogen-free

For more informaton about BM28 Series, please click here 


FH72 Series, 0.3mm Pitch, One Action Lock, Top Contact, FPC Connector 

HIROSE Electric Co. Ltd, a world-class manufacturer in connectors, has introduced the FH72 series of flat printed circuit connectors (FPC) for Industrial applications.

 Hirose FH72

A unique one action lock allows a FPC to be inserted into the connector without opening the actuator. This can be done with one hand or by automated machinery to save valuable assembly time and reduce mating failure. Furthermore, the FPC is easy to insert into the connector due to the wide entry point. High retention FPC force is achieved by the robust locking mechanism. This firmly retains the tabbed FPC into position to secure mating. The correct placement of the FPC can be visually inspected through small openings in the top surface of the connector. The FH72 series is designed with an integral molding structure that has no gaps to prevent solder wicking. The small pitch of 0.3mm saves space on the board, which is ideal for smaller applications. Ideal applications are wearable devices, smart home applications, medical devices and others.

Key Features

  • Number of contacts: 11
  • Pitch: 0.3mm
  • Height: 0.9mm
  • Rated current: 0.2A Max
  • Operating temperature: -55°C to +85°C
  • Voltage rating: AC/DC 30V

For more informaton about FH72 Series, please click here 


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HIROSE Electric Co., Ltd is a world-class Japanese manufacturer of high-quality connectors. Established in 1937, HIROSE uses advanced engineering services, excellent customer service, and worldwide manufacturing capabilities to provide technically advanced connector solutions for many industries including industrial, automotive, consumer, testing, broadcasting, and telecommunications.


Please don't hesitate to contact our sales team. We will help you to find the right solutions for your purposes.


Heikki Heinonen

Product Manager
Connectors & Cable Assemblies 
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