Compact connectors offer secure connection and easy unmating

The Hirose Electric DF40 series of connectors, available in board-to-board and FPC-to-board configurations, supports high-speed applications with a 10 Gbits/s data rate and conformity to USB4 v2.0 specifications.

The DF40 series of shielded flexible printed circuit FPC-to-board and board-to-board connectors from Hirose Electric supports high-speed signal transmission at rates up to 10 Gbits/s, making it suitable for use in products conforming to the specifications of the USB4® specification v2.0 standard. At just 3.38 mm deep, the DF40 series connectors occupy a small board mounting area.


The connectors’ robust, metal-blade lock has a sliding mechanism to provide a secure connection. This is ideal for applications that must be able to withstand drop impacts. A positive tactile click can be felt when mating to confirm correct engagement. A vacuum pick-and-place area is available for automatic placement.


Guide ribs provide a wide self-alignment range of ±0.33 mm in the x and y directions to simplify mating. The user-friendly connector offers an effective mating length of 0.45 mm, providing high contact reliability.


In addition to the standard DF40 series, Hirose Electric also offers:

  • DF40T, DF40GT, DF40F series of heat-resistant and/or floating versions for automotive applications
  • DF40GL, a shielded version


  • 0.4 mm contact pitch
  • Between 10 and 120 contacts
  • 0.3 A rated current
  • 30 V ac/dc rated voltage
  • Operating-temperature range: -35°C to 85°C
  • 30 mating cycles


  • Digital cameras
  • Home appliances
  • Audio devices
  • Gaming devices
  • Small industrial equipment
  • Portable consumer devices

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