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Among the many features that are being incorporated into industrial RF connectors, one of them is that they resist humidity. This is because, on many occasions, adverse situations can occur in which the presence of the latter may occur.

It is not that we are going to plunge the cabling and the devices and other elements into the water, but it is, of course, a very valuable characteristic, especially in some environments. Let’s look at the water-resistant RF industrial connectors.

Pisces, the RF connectors that connect the water

Intelliconnect, a company specialized in assemblies and connectors as Alfa’r, is the company that has announced new waterproof RF industrial connectors, a new generation of the previous models called, very conveniently, Pisces.

Metal alloy

The key point of these connectors is the alloy they are made of. This is given in aluminium, nickel and bronze. Thus, RF becomes suitable for demanding wet environments such as marine, oil, chemical or gaseous environments.

Conventional RF connectors are made of brass and have a finish that is usually either nickel or passivated stainless steel.

Well, the Intelliconect finish allows infinitely slower degradation in the demanding environments we’ve mentioned and where water-resistant RF industrial connectors become a necessity.

Waterproof industrial RF connectors

This ensures that optimum performance is maintained for a much longer period of time, thereby extending the service life of the connector and saving considerably compared to other inexpensive (not all, of course) non-Waterproof RF connectors.

The alloy itself is resistant to corrosion caused by water, so that it does not need plating to protect the environment.

The combination of nickel, bronze and aluminium results in a non-reflective surface of extremely long duration, whose level of corrosion resistance is inherently resistant to the very erosion of desert environments and components and which is also highly resistant to dust and sand as there is no silvery surface that can wear out.

In the same way, indicate that Pisces are also resistant to saline environments, even in the most extreme cases.

Where or when to use this type of connectors?

As if an RF connector were involved, we can use Pisces or other waterproof passive electronic components in systems:

  • Of communications
  • Nuclear Power Plants
  • Industrial SCADA control
  • Chemicals
  • Of military radars
  • Maritime and naval
  • From video
  • Others Other

They will be used in control tasks as well as in monitoring in any extreme industrial and marine environment where it is essential that maintenance of these is not costly or difficult.

Waterproof industrial RF connectors

Our industrial RF connectors

Finally, we didn’t want to finish without mentioning our industrial RF connectors, which offer a wide range of features that make them more than attractive.

You have them from 50 omhios up to 24 Ghz, depending on the versions, with press tow, crimping systems and “quick”, in a very wide catalogue where quality is imposed above all else.

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Alfa’ r wants to tell you today everything that is worth knowing about Socapex connectors, will there be anything you don’t already know? We’ll see!

What are Socapex connectors?

The Socapex connectors, from Amphenol, are nothing more than electrical connectors with 19 pins. Of these, 6 are face pins, 6 are neutral pins and another 6 are ground pins; the last one, the center, helps the male and female connectors to assemble correctly.

These connectivity solutions are applied in lighting to set scenarios, making multipair cable terminals.

Indicate that Socapex is a trademark registered by the Amphenol firm; although the term has been extended to connectors with these characteristics and is used indiscriminately and worldwide to refer to any connector of any type, whatever brand.

It’s something like Kleenex, Albal or Jacucci paper; they are well-known brands, which have become benchmarks, and we suppose that it is the product itself that bears that name, although the truth is that it is not.

Socapex connector

Socapex Connectors Features

Socapex brand connectors, in addition to the 19 pins, include:

  • A housing made of aluminum alloy and includes black insulating finishes.
  • Gold-plated contacts are offered for both soldering and assembling.
  • Versions in a number of different sizes to suit all lighting and other needs.
  • CRIMP version that includes extended ground contact, so that it can be connected first.
  • They work at 20 amps and with an AC voltage of 50 volts.
  • They have 400 volts AC operating voltage.
  • Its insulation resistance is considerable, 2000.
  • The contact resistance is level 3.
  • Its working temperature range is enormous, from -40 to 85º C.
  • Touch tension is up to 2 kg.
  • The supported pressure reaches 1800 VAC/min.
  • Socapex Industrial Connectors

Socapex connector

MC Multicontact Connectors

In Alfa’r Industrial Connectors we have, of course, connectors compatible with the famous Socapex, within our extensive catalogue of MC multi-contact connectors. These, like those of the well-known firm, have similar functions and characteristics.

This catalogue and its diversity of products allows us to address the electrical and electronic control sectors, offering a national alternative to the well-known models on the market until now –Socapex and others.

Circular connectors T10, T20, T30, T40 and T70

Taking into account all our catalogue of industrial connectors and especially the multi-contact connectors, we can cover all the needs of coexioning in access controls, robotics, industrial applications, control machines and vending machines, aeronautical, railway, for high intensity work, in domotics, in voltage work and, like Socapex connectors, in spectacular lighting.

With 40,000 standard references we have become leaders in the connection sector, keeping ahead with a constant renewal that happens, among other things, by offering real alternatives to the known connection systems that, in many cases, have become obsolete or directly obsolete.

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Do you know what a coaxial cable is? And the composition of the coaxial cables? We tell you in this entry what is the basic functioning of this one, as well as the elements that compose it and how they work to achieve their objective, which is the transport of electronic information in a secure manner.

What is a coaxial cable?

The word coaxial is the result of a contraction of “common access” (coax),”common access” in our language. We see as well as main electronic components manufactured and distributed by Alfa’ r: coaxial cables and connectors.

The cable itself is used to carry electrical signals that are high frequency.

Coaxial cables composition

This one has two conductors that are concentric, the live one, also called soul, that is going to be the one that carries this information, and the armor, that will be in charge of making the earth reference, treating the return of the currents.

In some cases, this is replaced by fiber optic cable to handle very high frequencies, especially when it is necessary to cover kilometric extensions.

Parts of a coaxial cable

In the composition of a coaxial cable, four parts can be distinguished: core, dielectric, mesh and sheath.

Coaxial cables composition


The core of the coaxial cable is the central part we see if we look at a cross section of it. It is the one that will be in charge of transporting all the electronic signals that are nothing but the source of information.

It is solid and can consist of either a solid wire of ferrous wire or several copper wires that will be twisted together.


The dielectric is a layer that isolates the core of the next layer, which is the twisted wire mesh, i. e. it covers it.

The reason for this is that both parties do not react well when they come into contact, as a short circuit occurs. Thus, any signals or noise in the mesh would be able to pass through the copper wire.

The characteristics of this one are very variable, always depending on the available budget for the manufacture, and it is the most fragile part of the cable if we take into account the exposure of each one of these. Thus, a weak dielectric can cause the whole cable to work, partially or totally; hence the importance of always betting on quality coaxial cables.

Coaxial cables dielectric

Wire mesh

The twisted wire mesh isolates the core from the electrical noise and distortion produced by the other adjacent wires.

It acts as a dough and can be completed with a metal sheet, so that double shielding is achieved.

We are talking about braided wire mesh, but we also use rolled sheets or corrugated copper and aluminium pipes.


The covers are, on almost all occasions, made of rubber, plastic or Teflon; the coating.

They are used to surround the cable in such a way as to avoid possible electric shocks.

Thus, this is the composition of the coaxial cables and their basic operation.

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On this occasion we want to bring you some very good news. We’re going to Germany! Alfa’r will soon be exhibiting at the SPS IPC DRIVES 2017 in Nuremberg.

SPS IPC Drives Nuremberg 2017

SPS IPC Drives Nuremberg is an annual international exhibition held in Nuremberg, Germany. It presents products and services related to electrical automation and systems.

Usually, the date of completion is at the end of November, as is also the case this 2017, which will take place between Tuesday 28 and Thursday 30 November. It is also known that in 2018, it will be the 27th to 29th of the same month that the German city will welcome different professionals, and we hope that it will also welcome us.


SPS IPC Drives Nuremberg 2017


This exhibition is not open to the public, but the audience is only professional, as are, of course, the exhibitors.

The exhibition will present products of technical adaptation, sensors, IPC, measuring equipment, interface technology, motion control, software, mechanical products, motion control… We will be working in the areas of automation, control technology, industrial, electromechanical…

The Alfa’r exhibition point

And at SPS IPC Drives 2017 we will find Alfa’ r as an exhibitor dedicated to the manufacture and distribution of industrial connectors and electronic components.

We go as an exhibiting company to show a great variety of products. We will be located in Hall 10.1, stand 414. There we will be available to demonstrate, explain how everything we have on display works and answer any questions.


SPS IPC Drives exhibition


Thus, we continue to be a benchmark in the sector after more than 50 years at the foot of the barrel. As we have already mentioned on some occasions, we have had the good fortune to, with hard work and effort, set ourselves up internationally and already have customers around the world, which is why, in part, our company specializing in industrial connectors will be next November at the SPS IPC Drives in Nuremberg.

Alfa’r SL Industrial Connectors & Electrical Components

With our track record and with the products we manufacture and market could not be otherwise. Since we started in the 1960s with audio connectors until today, offering all kinds of connectors, tools and related tools for various industrial sectors, there has been a qualitative leap in our company; that is undeniable.


Alfa'r connectores exhibition


Thus, we are fortunate to be able to count on exhibition and, of course, to offer our customers from all over the world, coaxial connectors, from 1.6 to SMA, MC multi-contact connectors, hoses, caoxial cables and an endless number of tools necessary to cover all aspects of the market where the use of connectors is required, which are our specialty.

Only in this way, with a great deal of work, effort and investment, have we achieved the achievements that make us today a benchmark exhibitor at international trade fairs such as the SPS IPC DRIVES 2017 in Nuremberg.

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There are different types of coaxial connectors, both for baseband and broadband. Today we talk to you about the most common RF coaxial connectors we work with and tell you about their main use.

Most common RF coaxial connectors for broadband

IEC 169-2 connector

This will probably be the most common connector, or at least the most well-known – and also the oldest – one for the most part. This is the antenna cable for European TVs and FM/DAB radio, which we all have at home plugged into the TV.


The F connector has a common use in television, both by cable, satellite and terrestrial aerial.

F connector

It was invented in the 1950s to develop cable TV but it wasn’t until the 1970s that it became a common connector for the VHF antenna and later for the UHF.

BNC Connector

It is a male connector that is installed on both sides of a cable for use in Ethernet and video network connections. Physically, it consists of a core that connects the conductor and a metal tube that goes to the outside of the cable.

BNC coaxial connector

It is complemented by a ring that enables connections to the female BNC connectors.

Most common RF coaxial connectors for baseband

XLR-3 connector

It is used for professional audio applications and is the most common in spectacular lighting equipment, capable of transmitting the DMX digital control signal.

Although this is the most standardized, there are 4 to 8 pins (the number of the end).


It is possibly the most common RF connector in both video and non-professional audio audiovisuals.

Connectors RCA

The male has a positive pole in the center surrounded by a metal ring with an intermediate part that isolates.


It’s the audio connector we enjoy today for our headphones on a laptop, for example. It transmits sound analogically.

At present we have more than standardized in 3.5 mm but there are also 2.5 mm and 6.35 mm. The latter is widely used in musical instruments and professionally.

RF coaxial connectors for special applications


Although its applications were for radar in the war, this UHF connector has been the most common for amateur radio applications up to 150 MHz.

UHF connector

Mini UHF

This is the mini version of the previous one and was created to be used in mobile telephony and other applications where size was a very important factor.


The FME connector,”For Mobile Equipment” we deduce that this type of common coaxial RF connector is used -now much less now- in all types of installations and mobile applications, offering a great performance at 2.0 Ghz.


It is a threaded connector that is used in microwaves, with a great utility for frequencies up to 33 Ghz.

These are the most common RF coaxial connectors. Which ones did you know?

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