Hirose releases multi-RF board-to-board connector

Hirose has released a multi-RF board-to-board connector that provides a size reduction of up to 71% compared to conventional designs.

With what is said to be the industry’s smallest width of only 2.2 mm, the BM56 Series supports multiple RF and digital signals with one board-to-board connector.

By combining digital and RF signals into a single connector, the BM56 Series offers a more effective use of the PCB, and enables the development of smaller, lighter end-products. In addition, the ultra-low profile BM56 Series can be placed on top of a device’s battery, offering more space-savings and design flexibility.

With contacts designed for both high-speed digital transmission and RF signal, the BM56 supports a wide range of high frequency applications, including 5G. The BM56 supports the following RF signal transmissions (VSWR):

  •      DC to 5GHz: 1.3 Max
  •      5 to 10GHz: 1.4 Max
  •      10 to 20GHz: 1.5 Max

The connector has a double shielded design that enhances EMI protection. A fully armoured design that covers both ends of the housing with metal provides enhanced robustness and a significant reduction in the risk of housing damage from misalignment when mating.

A wide self-alignment range of ±0.3 mm in the pitch direction and ±0.3 mm in the width direction, along with guidance ribs also provides smooth mating operation.

The small size of the BM56 connector offers significant PCB space savings allowing OEMs to add a larger battery, add components to increase functionality, or simply miniaturise end-products, according to Hirose.

Combining an ultra-low profile with high contact reliability, the BM56 Series board-to-board connector employs a simple lock design to ensure secure mating retention. The connector makes a clear tactile click when properly mated.