Board-to-board connectors

Board-to-board connectors

With the board-to-board connectors of the FINEPITCH product range, Phoenix Contact provides shielded and unshielded solutions for signal and data transmission. This allows you to implement individual PCB orientations in all dimensions with different designs, stack heights, and numbers of positions in different pitches from 0.635 mm to 1.27 mm. Mezzanine, coplanar connections, and mother-daughter cards are also possible.

Comparison of technical data

Compare the product series and choose the right board-to-board connector for your application.

FS 0,635
FP 0,8
FR 1,27
FS 0,635

FP 0,8

FR 1,27

Overview of the technical data
Product series FS 0,635 | FS 0,635 Floating FP 0,8 FR 1,27
Pitch 0.635 mm 0.8 mm 1.27 mm
Numbers of positions 20 … 80 12 … 80 6 … 100
Stack heights 6 mm … 16.6 mm 6 mm … 21 mm 8 mm … 13.8 mm
Designs Vertical Vertical and horizontal Vertical, horizontal, and flat-ribbon cable
Shielding - Optional -
Floating ±0.7 mm (x and y directions) ±0.3 mm (x and y directions), contact-integrated -
Nominal current per contact 0.5 A 1.7 A 2.3 A
Data rate Up to 30 Gbps | Up to 40 Gbps Up to 52 Gbps Up to 28 Gbps
Insertion cycles 50 500 500
To the product list To the product list To the product series
Free sample
Test our board-to-board connectors

Discover the benefits of the board-to-board connectors from the FINEPITCH portfolio and order a free sample. Our experts will assist you with selection, design-in, and optimum integration into your application.

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Exploded view of board-to-board connectors on several PCBs above an electronics housing
FR 1,27 series board-to-board connectors

White paper on high-speed board-to-board connectors Identifying influences on data transmission and optimizing data integrity

Networking the world demands ever faster data transmission from devices and interfaces. This also requires connections within devices that route signals and data back and forth between the printed circuit boards as quickly and reliably as possible. Read our white paper to find out how you can achieve high data integrity with impedance-optimized board-to-board connectors, their pin assignment, and the corresponding PCB layer structure.

Tolerance compensation for board-to-board connectors

White paper on the different modes of tolerance compensation Different contact systems and their tolerance compensation

Board-to-board connectors connect printed circuit boards. They must meet electrical and mechanical requirements in devices. Different connector systems are suitable for different requirements and offer specific advantages such as tolerance compensation. Our white paper explains why tolerance compensation is so crucial for board-to-board connectors. Discover the various contact systems, their possible applications, and when floating types are the better choice over rigid ones.

Board-to-board connectors brochure

Board-to-board connectors brochure

Which board-to-board connector is right for your application? Discover our versatile solutions for individual device concepts. A wide variety of designs, pitches, and numbers of positions give you maximum freedom in planning and realizing your device. Check out the brochure for an overview of all the key information about the product portfolio, versions, and design-in advantages.

Our board-to-board series in detail


FR 1,27 series: A leap in performance for even higher data rates up to 28 Gbps

See for yourself how the FR 1,27 series BTB connectors provide more space in the device when space is at a premium. Device developers can benefit from the high degree of freedom afforded when planning and implementing device-internal PCB connections.

FS 0,635 series: Compact and economical solution for your device development

FS series board-to-board data connectors provide you with space-saving and cost-effective solutions for device development. Transmit data rates up to 40 Gbps and currents up to 0.5 A per contact via up to 80-position connectors with a pitch of 0.635 mm and stack heights up to 16.6 mm – safely and reliably with high angle and offset tolerances.

FP 0,8 series: High EMC protection

Secure data transmission up to 52 Gbps thanks to the clever shielding concept: unique to the market, both shielded and unshielded board-to-board connectors are available in the same portfolio. The same tolerances, stack heights, and mechanical properties enable uniform process parameters – particularly in applications in which both versions are to be installed on one printed circuit board. The high level of product variety also ensures a high level of flexibility during design-in for series production.

New products

Power connectors for high-density applications
FP 0,8 SL series board-to-board connectors

Hybrid power board-to-board connectors

Compact solution for power and signals

The Power Connect Hybrid (PCH) series includes hybrid board-to-board connectors with power and signal contacts. With a current carrying capacity of up to 85 A per contact, the PCH series meets the requirements for compact solutions with a high power.

Main features

  • High-power, low-power, and signal contacts
  • Max. current per contact: high power: 85 A / low power: 51 A / signal: 1 A
  • Pitch: high power: 5 mm / low power: 7 mm / signal: 2 mm
  • Orientation: right-angled for coplanar board-to-board connections
  • Conformance with OCP (Open Compute Project)

Your Advantages

  • Combined high-power and signal transmission in a single connector for space- and cost-saving use
  • Compliance with the OCP Standard for Power Supply Units (PSU) and Battery Backup Units (BBU)
  • Automated processing with reflow solderability
  • Multi-level sequenced pinning for safe connection and disconnection under load
  • Blind-mate capability for easy, reliable plugging

Unshielded board-to-board connectors with 0.8 mm pitch

Greater flexibility with compatible PCB footprints

The FINEPITCH board-to-board connectors in the FP 0,8 SL series are unshielded versions of the FP 0,8 series. Compatibility with the PCB footprint of the shielded FP 0,8 versions means that both versions can be replaced flexibly without adjusting the PCB layout.

Main features

  • Pitch: 0.8 mm
  • Number of positions: 12, 20, 32, 52, 80
  • Stack height: 6 mm ... 21 mm
  • Data rates up to 52 Gbps
  • Available with shielding as an option
  • Nominal current: 1.7 A per contact
  • Insertion cycles: 500
  • Test voltage: 500 V AC

Your Advantages

  • Compatible PCB footprint enables flexible replacement of shielded and unshielded versions
  • Reliable mechanical and electrical connections with the double-sided ScaleX contact system
  • Robustness: ScaleX technology for high tolerance compensation and protection of contacts
  • Flexible device design: various numbers of positions, designs, and stack heights with high wipe lengths