News and Articles

  • Amphenol Connex is Now Amphenol RF

    Customers of both brands will now enjoy a single point of contact and have access to more than double the number of products than previously available.

    Danbury, CT – We are pleased to announce that Amphenol Connex has merged with Amphenol RF, headquartered in Danbury, CT. The combined product portfolio will be marketed and sold under the name Amphenol RF. The Moorpark, CA facility will continue to operate as the company’s main North American distribution center and Amphenol RF’s western regional sales office providing support to local customers.

    Customers of both brands will now enjoy a single point of contact and have access to more than double the number of products than previously available. The expanded product portfolio combined with Amphenol RF’s global manufacturing footprint and world class engineering capabilities allow us to provide customers with nearly unlimited RF interconnect solutions.

    To browse our complete product portfolio and learn about our engineering capabilities, please visit the Amphenol RF website at


    Low PIM is the buzzword of the week in wireless infrastructure as the industry decides on the new “standard” RF connector. PIM stands for Passive Intermodulation (which is similar but not the same as IMD – that is for active components) and is measured in dB’s. PIM is defined as the unwanted signal or signals generated by the non-linear mixing of 2 or more frequencies, but what does it really mean to the consumer? High PIM means poor cellular reception and limited bandwidth to the end user, which in turn means lost customers to the carrier. Low PIM means strong signals with more bandwidth for more users, which means happy customers and higher revenues for the carrier. From a hardware perspective, it means that each and every connection must be designed to minimize PIM and tested to ensure it is installed properly. That is where Amphenol is the expert.

    “Amphenol has been testing and optimizing PIM in our connectors for almost two decades.”

    Current Hardware

    The current standard wireless RF connector – 7/16 connectors – are large and heavy. They have been in the field for years, are proven to be reliable, and have good PIM performance. However, in the age of smartphones, increased data usage equates to increased RF connector density, and the 2”x 2” flange required to mount a 7/16 is too large.

    7/16 Connector 7/16 Connector

    The current alternative – N type connectors – are smaller and fit on a 1”x 1” flange, but cannot match the torque spec or PIM performance of the 7/16 connector.

    N-Type Connector N-Type Connector
    Connection Evolution

    The front runners for the crown are the 4.1/9.5 and the 4.3/10 connector. The 4.1/9.5 connector is an old interface and is commercially available, but has not achieved widespread adoption. For a list of available current generation Low PIM adapters follow the hyperlink. The 4.3/10 is a new interface based on a new specification, with nearly no time in the field. Let’s compare the two technically first, then understand the industry forces acting on the choice of next gen connectors:

    • Both meet or exceed the performance of the 7/16, but fit on a 1” flange
    • Both can handle higher torque loads than N type, reducing install failures
    • 4.1/9.5 PIM performance varies when loose or under strain (similar to 7/16)
    • 4.3/10 has the unique ability to have stable PIM while connector is loose or under strain – this increases reliability and allows it to be hand tightened
    • 4.3/10 has separate mechanical and electrical planes for optimized PIM
    4-1-9-5-Low-PIM 4.1/9.5 Bulkhead Flange Adapter

    Industry forces:

    • A major US carrier is pushing all large RF interfaces to 4.1/9.5
    • European standard is likely to be 4.3/10
    • Many carriers have not adopted 4.1/9.5, seemingly waiting for the 4.3/10

    While Verizon is supporting 4.1/9.5 at the moment, the industry at large seems to be holding off as the 4.3/10 is a strong contender for the crown of “Standard Low PIM” connector. Very likely both standards will exist and create their own niche, as is seen with the current gen products. Amphenol continues to broaden its industry leading product portfolio, offering the 4.1/9.5 in multiple configurations, and developing the 4.3/10 product line. Please contact us to learn more.

    4.1/9.5 Adapter 4.1/9.5 Adapter
    Years of Experience

    Amphenol has been testing and optimizing PIM in our connectors for almost two decades. We offer 100% PIM testing on critical products and can work with our customers to optimize PIM at the system level. To get really smart on PIM, read the white paper written by our very own RF guru, David Weinstein.


    Amphenol RF expands its coaxial cable assembly offering with a new line of SMP cable assemblies, ideal for size constrained, high frequency applications.

    Danbury, CT – Amphenol RF introduces fixed length SMP cable assemblies as the ideal preconfigured solution for high frequency applications with 50 Ohm impedance requirements. The cable assemblies offer excellent performance up to 26.5 GHz and are highly reliable in test environments.

    Amphenol SMP pre-configured cable assemblies feature Amphenol RF’s SMP plug connectors, which are designed to accommodate both radial and axial misalignment in a small package size. The SMP connectors are terminated to industry standard 0.085 conformable and Times Microwave TFlex®-405 cable. They are available in standard lengths ranging from 3 to 36 inches, with the right length option available for any RF design.

    Due to its high frequency range, SMP cable assemblies are ideal for high data rate applications such as broadband communications, instrumentation, and antennas. Their reliability under conditions of radial and axial misalignment also makes them ideal for applications exposed to shock and vibration such as instrumentation equipment, aerospace, and military applications.

    Read the New Product Alert


    Amphenol RF AMMC and AMC coaxial interfaces offer maximum performance in space saving, micro-miniature designs.

    Danbury, CT Amphenol RF introduces its ultra-miniature AMMC printed circuit board connector ideal for space-constrained RF applications with 50 Ohm impedance requirements. These connectors are fully compatible with the Hirose W.FL and IPEX MHF III series.

    Amphenol Micro Miniature Coaxial (AMMC) connectors are low profile (1.4 mm off the board, mated) with an extremely small footprint (2 mm x 2 mm). Packaged in 3,000 piece reels, these connectors feature high frequency broadband performance up to 6GHz and easy snap on/off mating. The AMMC connectors are designed to be surface mounted, which allows for higher PC board densities.

    In addition to AMMC PCB connectors, Amphenol RF offers a full AMMC product portfolio which includes AMMC cable jumpers and AMMC to SMA coaxial adapters. The jumpers offer an AMMC right angle plug to AMMC right angle plug on industry standard black 0.81 mm and 1.13 mm micro-coaxial cable.

    Furthermore, Amphenol RF has extended the AMC product line to include AMC jumpers with 0.81mm micro-coaxial cable and RG-178 cable configurations. Similar to the AMMC, The AMC (Amphenol Micro Coaxial) connector series is a low profile (2.5 mm of the board, mated) series with an extremely small board footprint (3mm x 3mm).

    The light weight, compact designs make AMMC and AMC interconnects optimal for Wireless, WLAN, Bluetooth, and GPS applications. They meet the high frequency transmission requirements of mobile phones, notebook computers, and tablets. Due to their ability to maintain superior signal integrity, AMMC and AMC connectors are also popularly used for antenna connections and cellular communications.

    Read the New Product Alert


    filtersFinding the right Amphenol RF connector has never been easier.  Our new filtered search feature allows you to focus on the features you need, to find the right parts for your application. Simply clicking on what's most important in your search, for example - the product series or the cable type, you can quickly zero in on the products that are best for you.


    We've provided an assortment of pre-filtered searches, based on market trends and popular searches, including terms like QPL, IP-67 sealed and Board-to-Board. These feature searches provide an excellent starting point for your designs.



    It's easy to create an account with Amphenol RF. Registering with us gives you access to a parts list where you can save parts, make notes, and easily check stock with our distribution partners. It's a great feature when you've got a BOM with multiple part numbers, and you need to find suppliers with stock - all with one click.

    Amphenol RF is the world’s largest manufacturer of coaxial connectors for use in radio frequency, microwave, and data transmission system applications. We've got the right solution for your solutions.


    The NEW features improved search functionality making it easy to explore thousands of connectors, adapters and cable assembly products.

    Danbury, CT – Amphenol RF announces the launch of a new corporate website, The new website is home to more than 9000 standard products and boasts an advanced feature set that will allow buyers and engineers searching for RF connectors, coaxial adapters and cable assemblies to quickly and intuitively find the ideal solution.

    homepageThe site boasts dramatically improved search functionality including a full parametric search allowing visitors to narrow their search by product attribute and an ultra-fast full-text search engine that provides search suggestions as keywords and part numbers are entered. Once the ideal part number is identified, an improved distributor inventory locator makes it easy to find stock at one of our distribution partners. Downloadable product data includes 2D PDF customer drawings, 3D models, assembly instructions and other documents. Additional features include:

    Product Compliance Center and Product Compliance Search – Search for environmental documentation and learn about compliance regulations.

    Competitor Cross Reference Search – Search for Amphenol RF equivalents to many of our competitor’s part numbers.

    Video Library – Features informational and instructional videos

    These features plus a responsive design ensure the site will be a useful tool for visitors when accessed on any device including mobile phones, tablets and desktop computers.

    About Amphenol RF

    Amphenol RF is a leading manufacturer of coaxial connectors for use in radio frequency, microwave, and data transmission system applications. Headquartered in Danbury, Connecticut, USA, Amphenol RF has global sales, marketing and manufacturing locations in North America, Asia and Europe. Standard products include RF connectors, coaxial adapters and RF cable assemblies. Custom engineered products include multi-port ganged interconnect, blindmate and hybrid mixed-signal solutions.

  • Crimping Instructional Video

    This an oldy but a goody!

  • IP ratings in RF connector applications

    Most engineers (including this author) have at one time or another been accused of over-designing or over-engineering a product.  It is often claimed that tolerances that are unnecessarily tight, or a requirement is impossible to meet, or an electrical spec can't be met.  Whether its the manufacturing engineer, the purchasing manager, or a supplier, someone will be sure to give you an earful about how you don't need something that performs that well.  One such topic that runs across my desk fairly often is the IP rating of connectors.

    Lets start with some definitions!  Since ratings less than IP54 become meaningless in the connector world, lets start there and work our way up the most common ratings.  IP67 and IP68 are the two most common seen in the marketplace.  IP ratings are split between 2 numbers that reflect the products ability to resist solid particles and liquid particles.  The first number represents the solids and second number represents the liquids.

    IP54: 5 = dust protected,  4 = splash proof

    IP67: 6 = dust sealed, 7 = submersion to 1 meter for 30 minutes

    IP68: 6 = dust sealed, 8 = submersion to customer specification

    For the full breakdown please see the Connex page.


    The critical take-away from this brief explanation is to show that the rating can be vague, so a full understanding of the connector is critical to not over-designing your application.  In most applications when a customer purchases an IP67 connector for a non-submerged application, IP54 would achieve their goals.  If you need your panel sealed - is the connector IP67 rated to the panel or just through the interface? Is it only sealed to the panel and not through the interface?  Is it sealed in the mated condition only?  In all cases, a connector may be labeled as IP67, even though it may seem that it is a misrepresentation of the product.

    Is IP68 better than IP67?  Well, it depends - is the application fully submerged for longer than 30 minutes and at depths more than 1m?  If not, then the two ratings are largely indistinguishable.  Just because 8 is a higher number than 7, does not mean that it is "better" or more appropriate for the application.  Furthermore, IP68 is achieved to a customer specification - there is no industry standard.  Be sure to investigate the actual test (or equivalence of the test done) to determine the capabilities of the connector.  IP68 could mean that the connector is capable of 1.1m for 31 minutes or it's capable of 100m for 10 years.  Those are wildly different, but achieve the same rating.  This is a bit of trickery that marketers love to exploit.  Conversely, a well designed IP67 rated connector may meet the customer’s IP68 requirements, but because it has not been tested to that customer's specification, it has not been granted the IP68 rating.

    For a comprehensive list of our IP67 parts available through distribution, please see our Digi-Key page.

    Amphenol RF is your source for RF interconnect information, please contact us with any questions you may have!

  • Food Pantry Challenge!

    Daily Bread Food Pantry Logo

    This month at Amphenol RF, we got together for some friendly competition to donate peanut butter and jelly to the Daily Bread Food Pantry, and to challenge each other's creativity!  We hosted a peanut butter vs jelly tower build, and the results were fantastic.  Overall, nearly 200 jars of peanut butter and over 100 jars of jelly were donated (as well as a few jars of Fluffernutter)! Thanks to everyone who donated!

    1001141410a - crop 2 1001141410- crop

  • Community Participation: 5K Charity Run!

    Amphenol RF has sponsored the annual United Way King of the Hill 5K in 2014!  We had a great turn out for the race, with 20 participants coming out to run or walk for the United Way charity.  The event coordinators put together a great, fun race for the participants and luckily, the weather was perfect!  Congratulations to all the finishers an everyone who made the podium!


    10537129_10152712203567733_5435231913621575642_n (1) Pre-race team stretch
    Post race picture! Post race picture!

    Follow the link to see the official pictures and race site:


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