Board-to-Board Solutions

Amphenol RF provides a variety of standard interface options and proprietary designs. Each interface has unique specifications and performance expectations, which allows application developers and engineers to choose the best products for their projects.

Mating Configurations

parallel mating

Parallel

co-planar mating

Co-Planar

right angle mating

Right-Angle

Featured New Products

ud-afi
UD-AFI Board-to-Board Connectors

The UD-AFI is a stamped and molded high float interconnect that offers a low profile PCB to PCB and Cable to PCB solution for automotive designs requiring high-frequency performance up to 9 GHz. This low profile cable has ultra-dense packaging and supports low loss automotive cables. UD-AFI connectors can be integrated into camera packaging or stand-alone with robust locking housing.

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Board-to-Board RF Connector Types

AFI Board-to-Board RF Connectors
The AFI connector series is a board-to-board solution for RF applications commonly used in military and broadband applications. The AFI interface utilizes a proprietary two-piece configuration that compensates for high axial and radial misalignment with industry leading float (0.030” [0.8 mm] radial and 0.040” [1.0 mm] axial). 50 ohm AFI connectors operate to 6 GHz and 75 ohm options support a maximum frequency of 3 GHz.
HD-AFI Board-to-Board RF Connectors
Supporting a maximum frequency range of 18 GHz, the HD-AFI interface is a versatile 75 ohm board-to-board connector system ideal for broadband applications. The HD-AFI interface utilizes a proprietary configuration that allows for a very stable RF signal over the full axial range of the connector system. Generous float (0.052” [1.32 mm] radial and 0.079” [2.0 mm] axial) compensates for misalignment due to packaging tolerances and low engagement forces make it ideal for multi-port solutions.
HD-EFI Board-to-Board RF Connectors
The HD-EFI connector system is a 50 ohm three-piece board-to-board solution offering excellent performance through 6 GHz. It is an ideal board-to-board solution where space constraints exist or where PCB stack heights vary. The HD-EFI supports blindmating needs with a crash-proof, closed entry contact design.
P-SMP Board-to-Board RF Connectors
The P-SMP connector series is a board-to-board solution for RF applications requiring high power. With a minimum board spacing of 12.6 mm, the three-piece design allows maximum flexibility for high-density board spacing. The interface is capable of continuous power handling of 220 W at 2.2 GHz making it ideal for wireless antenna applications.
SMP Board-to-Board RF Connectors
The SMP connector system is a 50 ohm board-to-board solution offering performance through 26.5 GHz, with the ability to enhance performance to 40 GHz for some designs through PCB optimization analysis. This dependable mating system utilizes the three-piece configuration, and a design focused on keeping a consistent RF signal with ample float (0.020” [0.51 mm] radial and 0.010” [0.25 mm] axial). This performance focus makes SMP connectors a good choice for military, measurement and quantum computing applications.
SMPM Board-to-Board RF Connectors
The SMPM interface is a micro-miniature interface with an optimized frequency range of DC to 65 GHz. This series is a smaller version of the SMP, with full detent and smooth bore mating systems providing mating force options. This family of interconnects addresses small package, high-performance design needs, with float (0.020” [0.51 mm] radial and 0.010” [0.25 mm] axial) designed to maintain a strong RF signal.

Board-to-Board Product Summary

High-Frequency
High-Power
High-Float
SMPM SMP P-SMP AFI HD-AFI HD-EFI UD-AFI
Impedance 50 Ohm 50 Ohm 50 Ohm 50 Ohm | 75 Ohm 75 Ohm 50 Ohm 50 Ohm
Max Frequency 65 GHz 40 GHz 10 GHz 6 | 3 GHz 18 GHz 6 GHz 6 GHz
Min PCB Spacing 6.6 mm 9.1 mm 12.6 mm 12.7 mm 11.5 mm 11.5 mm 8 mm
Power Handling 50 W @ 2.2 GHz @ 25˚ C 30 W @ 2.2 GHz @ 25˚ C 200 W @ 2.2 GHz 200 W @ 2.2 GHz @ 8.8˚ C 10 W @ 2 GHz @ 25˚ C 40 W @ 2.2 GHz @ 85˚ C
Axial Misalignment 0.25 mm 0.25 mm 2.00 mm 1.00 mm 2.00 mm 1.40 mm 1.00 mm
Radial Misalignment 0.51 mm 0.51 mm 1.32 mm 0.80 mm 0.80 mm 0.7 mm Depends on bullet length (4.8° tilt)
Board-to-Board Terms

Float

General term describing the board-to-board system’s physical ability to maintain a consistent RF signal between the PCB connectors and the bullet adapter.

Tolerance: The system’s ability to adequately mate and consistently perform in the least optimal mated condition.

Axial Misalignment: The minimum and maximum distance between mated PCBs, allowing the bullet to sit out of its nominal position.

Radial Misalignment: The maximum angle of the bullet adapter when mated between PCBs that still maintains consistent expected performance.

Detent

Term used to describe the PCB connectors mechanical mating strength or hold on the bullet adapter.

Limited Detent: Medium retention, good for lab environments and low to medium mechanical stress.

Full Detent: Provides fixed retention when mated, vibration resistant.

Smooth Bore: Slide-in mating, provides no mechanical retention feature inside the connector.

Catcher’s Mitt: Design feature describing the wide gathering cone of a PCB connector. Mostly seen with smooth bore detent, but not exclusively.

Blindmate

A design term used to describe the ability to mate the system without seeing the mating PCB connectors. Blindmate assembly typically requires generous manufacturing tolerance and high-float misalignment correction.

Custom Solutions
Amphenol RF specializes in custom interconnect designs engineered to meet unique application-specific requirements. Click through each solution to learn how our engineering expertise and manufacturing capabilities deliver performance, reliability and innovation for your
next design.

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AFI Dart Connector Series
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PSMP Connector Series
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Amphenol RF offers a cutting-edge range of board-to-board RF connectors, designed for seamless high-frequency signal transmission. These connectors are essential for applications in 5G, IoT, automotive, aerospace, and industrial automation, ensuring reliable and high-performance connectivity in compact designs.

🔹 Key Benefits:
✔️ High-frequency performance
✔️ Secure and durable connections
✔️ Compact & versatile for modern PCB designs

Watch this short to see how Amphenol RF’s board-to-board connectors optimize signal integrity across industries!

📌 Learn more: https://www.amphenolrf.com/board-to-board-rf-connectors
🔔 Subscribe for more RF solutions! #AmphenolRF #RFConnectors #PCBDesign #5G #IoT
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Amphenol RF offers a cutting-edge range of board-to-board RF connectors, designed for seamless high-frequency signal transmission. These connectors are essential for applications in 5G, IoT, automotive, aerospace, and industrial automation, ensuring reliable and high-performance connectivity in compact designs. 🔹 Key Benefits: ✔️ High-frequency performance ✔️ Secure and durable connections ✔️ Compact & versatile for modern PCB designs Watch this short to see how Amphenol RF’s board-to-board connectors optimize signal integrity across industries! 📌 Learn more: https://www.amphenolrf.com/board-to-board-rf-connectors 🔔 Subscribe for more RF solutions! #AmphenolRF #RFConnectors #PCBDesign #5G #IoT
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View full article: https://www.allaboutcircuits.com/tech-chats/amphenol-rf-interconnect-for-autonomous-technology-tech-chats-amphenol-and-mouser-electronics

Dale Wilson chats with Ron Orban of Amphenol RF about their Interconnect for Autonomous Technology. For more information, as well as all the latest All About Circuits projects and articles, visit the official website at http://www.allaboutcircuits.com/

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Amphenol RF Interconnect for Autonomous Technology | Tech Chats - Amphenol and Mouser Electronics
View full article: https://www.allaboutcircuits.com/tech-chats/amphenol-rf-interconnect-for-autonomous-technology-tech-chats-amphenol-and-mouser-electronics Dale Wilson chats with Ron Orban of Amphenol RF about their Interconnect for Autonomous Technology. For more information, as well as all the latest All About Circuits projects and articles, visit the official website at http://www.allaboutcircuits.com/ Check out Mouser's profile on All About Circuits and see more product briefs and articles at https://www.allaboutcircuits.com/author/mouser-electronics For more new products at Mouser, visit https://www.mouser.com/new/ To learn more about additional Amphenol Products please visit these links below: https://www.mouser.com/new/amphenol/amphenol-rf-ip67-ip68-sealed-connectors/ https://www.mouser.com/new/amphenol/amphenol-rf-fakra-connectors/ https://www.mouser.com/new/amphenol/amphenol-rf-automate-mini-fakra-connectors/ Register on AAC: https://forum.allaboutcircuits.com/register Subscribe on YouTube: https://www.youtube.com/c/AllAboutCircuitsVideo Like us on Facebook: https://www.facebook.com/allaboutcircuits Follow us on Twitter: https://twitter.com/AllAboutCircuit Follow us on LinkedIn: https://www.linkedin.com/company/allaboutcircuits
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Amphenol RF PSMP Board-to-Board Solutions are a connector series designed for board-to-board applications requiring high power. PSMP Board-to-Board Solutions provide a three-piece design and 12.6mm minimum board spacing.

Learn More: http://mou.sr/PSMPb2b
New at Mouser - Amphenol RF PSMP Board-to-Board Solutions
Amphenol RF PSMP Board-to-Board Solutions are a connector series designed for board-to-board applications requiring high power. PSMP Board-to-Board Solutions provide a three-piece design and 12.6mm minimum board spacing. Learn More: http://mou.sr/PSMPb2b
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Learn more about Amphenol RF's board-to-board and automotive solutions with Amphenol RF Asia product manager, Isabella Zhang.

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Amphenol RF Technical Demonstration Series: Board-to-Board and Automotive Solutions
Learn more about Amphenol RF's board-to-board and automotive solutions with Amphenol RF Asia product manager, Isabella Zhang. Board-to-board solutions: https://www.amphenolrf.com/board-to-board-rf-connectors Automotive Solutions: https://www.amphenolrf.com/automotive Check us out on social media: https://www.facebook.com/officialAmphenolRF https://www.linkedin.com/company/amphenol-rf/mycompany/ https://www.twitter.com/AmphenolRF Our Website: https://www.amphenolrf.com
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