Author Archives: Industrial Coaxial Connectors

In this post we are going to talk about a type of industrial connectors that are becoming a bestseller in today’s market. These are the Carter MultiPolar B-C connectors. So I recommend that you review their features in case you need to know more about them in the future or, if you already use them, how to get the most out of them.

What are the features of the CARTER MultiPolar B-C Series connectors?

Design and manufacture

This series of B-C series devices are MultiContacts that require a robust and robust construction, as they are used in industrial applications. It has a degree of protection classified as IP-68. In addition, they are manufactured in different sizes, so they can be used for many different jobs; sizes range from 50mm to 300mm insulation.

The best feature they have is that they are configurable, so you can place the contacts as best suits you at the level of distribution and type required. In the section referring to the way of coupling them to other devices we can say that they are manufactured in two types: screw coupling (defined as type 01) or lever coupling (defined as type 03).

bc multicontact connector

In addition, all of our MultiPolar B casings are manufactured with a cover to protect the interconnect face when the devices are not connected. As we can see, it is an interesting safety measure to include in these connectors.

Applications and combinations

These types of connectors are very necessary for many applications, which is why we find them present in many of them, especially where a secure and robust connection is required. The most common places to find this type of connectors for railway, naval, cranes, heavy industry, chemical, mining…

The aerial connectors have couplings for corrugated cable glands. Electrical contacts can be combined with fibre optic contacts, fluids, coaxial contacts and air. For this reason, signals of a different nature are integrated into a single connector, which will be the same for everyone.

Electrical type contacts can have a small current, high speed signal that advances to a higher voltage (pins with cones are available). They have a positioner that causes a pair of connectors to line up and those that remain insulated have turns that reduce the fact that there are errors when the system has several connectors.

By the nature of the currents and voltages, you can get an idea that the most important thing for the manufacturers of this type of connector is that the operator has good safety. The operator must be able to manipulate the connector and all the systems around it in order to be able to control possible faults affecting safety. But the operators themselves are trained from the start to avoid this type of event, which can be serious in nature. All this is done in accordance with IEC and UL electrical safety standards.

So for the reasons we’ve been seeing throughout the post, we can say that the Carter Multipolar B-C connectors are very safe and are perfectly prepared for industrial acquisition.

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Alfa’r is the brand par excellence to which you can turn for any need for connectors related to the automotive sector. We have an important professional career in the sector.

We will listen to your needs to analyze whether or not it has a solution and offer you the connector or coexion system for the automotive sector.

Our products are compatible with almost all internationally known connectors and connection elements, which is why we are not only a reference in Spain but also have a significant presence in many other countries in Europe and the rest of the world.

Other connectors and connection systems for the automotive sector

The automotive market has been revolutionized with the arrival of the new high-speed FPC connection system. The evolution in technology and knowledge has made possible the development of specific connectors for the automotive industry, thus meeting the requirements and needs of the connection systems of this sector.

As outstanding external connectivity plug-ins we see Yamaichi Electronics, which has launched a system that can transmit up to 20 Gbps. This new connector will be used to improve the connection systems of the automotive sector and we will show it below.

fpc connector for automotive

Technical Fundamentals

This connector sends signals according to the IEEE 802.3bj specification to reach the 28 GBps required by the data network segment in each channel, although Yamaichi Electronics is trying to achieve a formula that allows it to reach 56 Gbps with CEI-56GVSR&MR. The current model uses YFLEX technology.

The transmission system has a pitch of 0.5 mm, small and compact design and direct locking system for the FPC. This is essential in order to enter into sales in different markets such as industry, data networking and, of course, the automotive parts market.

The connection on the inside can also be achieved as a complete encapsulation system by providing cable and connector.

Can be used in environments with high current connectors (LVDS, V-by-One HS or TMDS) due to 100 Ohm impedance.

Features of the new connector

The dimensions of the largest model are 33.5 x 44.9 mm and the contact pitch is 0.5 mm. With such a small size you can save a lot of space for other PCB distributions. This connector can also be used for 30, 40 or 50 pins.

pcb distributions for automotive

With this new connection system there is no need to put an adapter next to the cable; it is very easy to connect and can be assembled directly with the connector. When installing, the technician simply disconnects the connector and then pushes a metal piece (located in the middle of the connector) so that the cable is completely tightened. Once you have done this, the installation of the device is complete.

The HF513 is the ideal device for connections requiring high data rates. In addition, it can be used in areas where the density is very high.

We hope that we have illustrated you clearly about Alfa’r’s automotive connectors, but of course if you have any questions you can contact us.


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There are many electrical connectors that can be important for everyday life. These can be classified in many ways, but throughout this post we will focus mainly on high current and high voltage electrical connectors.

Each of these has very different properties and we will treat them separately in order to explain their characteristics and the market orientation that each of them should have.

High current and high voltage connectors

High intensity electrical connectors

High current contacts are well suited for applications where more than two spring loaded contacts are used. They have basic designs with smaller sizes, which means that material costs are very low, even though the effectiveness of the connectors and their high level of performance are maintained.

This type of connector is used for very high power contacts. Hence, they are actually used in switches, bushings, disconnectors, switches and circuit breakers. This type of connection is a continuous development process in order to be able to offer safe, high-powered contact solutions.

ALFAR HIGH CURRENT contact D20 400A permanent

This design combines mechanical and electrical properties that have been improved to offer the significant ability to conduct high current currents with a constant low resistance. In addition, the contact area ensures minimal heating, even under constant load.

The most important advantage of high-current electrical connectors is the tolerance compensation, as it is a flexible connector and provides the manufacturer with a wide variety of contact solutions.

High-current contacts require 25 to 1000 Amps (A) in steady state situations.

High voltage electrical connectors

This type of high voltage monopole connector can withstand a maximum of 25 KV in permanent operation.

They are designed to combine great ease of installation with high performance in all conditions. Its operation also ensures that it will be very good even at temperatures below those of the connected conductors.

intense connector

High voltage electrical connectors when used must meet both the electrical and mechanical requirements used for other technical connections. In addition, it must be ensured that they will not produce the dreaded “crown effect“. This occurs on the surfaces of the circular section conductors, where, due to the ionization of the air, high potential differences are generated, which causes the appearance of a corona-shaped halo of different colors. The intensity of this effect can be quantified according to the colour produced, being reddish in mild cases and bluish in more severe cases.

As we have seen in the previous paragraphs, high current and high voltage electrical connectors are widely used today in various industrial sectors. For this reason, it is necessary to know them well, both in terms of their use and their production.


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If we have to talk about the most commonly used type of connectors on the market, it is when we talk about TNC (Thread Neil Concelman) connectors.

These connectors with screw type couplings are the most stable and reliable of the BNC series. In the lines that follow in this text all its properties and the uses that are given to them within the market will be presented. So if you belong to this world, don’t forget to learn more about this product, which is highly reliable and effective.

TNC connector

One of the most important features of this connector is that it belongs to the BNC series family of connectors, which already gives it a considerable level that leaves it above other connectors intended for the same use.

It has an impedance of 50 Hz and operates at a maximum frequency of 11 Ghz. When you put it in the microwave bag, you can be sure that it behaves much better than the BNC connector that matches it.

If we look at its history, we can say that it dates back to the end of the 1950s and was named after engineers Paul Neill and Concelman.

There is a variant called RP-TNC, which includes a reversed polarity, where the threaded nut is carried by the male.

The applications that can be given to this type of connectors are many, as they can be used in environments where there are very important vibrations, offering those who place their trust in them excellent results. As we say, their applications are multiple, since they can be used for instrumentation, safety systems, radio systems, broadcast, data communication, etc. As you can see, an endless number of utilities, where they can be combined by interconnecting connectors in both 50 and 75 Ohms.

TCN Coaxial Connector

For the 50 Ohms connectors we can use frequencies higher than 11 GHz and for the 75 Ohm, even the 1.5 GHz can be exceeded with very good results for the VSWR (Voltage Standing Wave Ratio). This parameter is used for low frequency power transmission lines and is also widely used in radio frequency. Based on it, it is also possible to calculate the level of the Return Loss phenomenon.

RF coaxial cables TNC

Our company’s manufacturing program is so flexible that we can offer a lot of different types of TNC coaxial connectors for any type of standard or even special cable, such as flexible, semi-rigid…

There are different versions in its form, as you can find straight, angled, waterproof panel cables, oriented to use in printed circuit boards (PCB) for the boards inside computers…. Finally, with regard to the assembly of the cable, we can find different types of versions, including those that are welded, with a cable gland or crimped.

The conclusion is that the TNC Thread Neil Concelman connector is the most recommended connector in the TNC connector range in almost every situation. So if you need any of our wide range of coaxial connectors please do not hesitate to contact us.

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Coaxial cable may be one of the most important connections in the world today. It is capable, for the time being, of handling two hundred thousand calls at the same time around the globe and is used in the most important telecommunication sectors, to give a couple of examples of its important usefulness. It is therefore of common interest to know the characteristics of coaxial cable and variants of electric. Is this your case?

Features of coaxial cable

The impedance of the coaxial cable is usually 50,75 or 93 omhios, represented by the abbreviation RG, of radio frequency-government. Then the progressive number of the type is included as well as the letter U, which indicates universality or the letters corresponding to the modifications that have been designed.

The RG-58 family stands out, whose distinguishing characteristic is its copper core. We found the following types:

RG-58/U, which has a solid copper core.
RG-58/AU, whose core is made of twisted wires.
RG-59, which transmits in broadband or CATV.
RG-6, larger diameter and frequencies.
RG-62, used for ARCnet networks.
Generally, the most commonly used in TV is the RG-59 coaxial cable, no matter if it is made for cable, satellite or antenna.

We can differentiate between semi-rigid, corrugated or flexible coaxial cables.

coaxial cable on detail

In our case, we make use of technical dielectrics made of PTFE, PE, physical foam injected with nitrogen or expanded. In this way we manage to reduce the dimensions while improving the mechanical resistance of all parts of the cable, which will undoubtedly make it much more durable.

Our coaxial cables include in their design halogen-free and flameproof HFLS covers, ensuring the quality of the cable and, of course, committing ourselves to protecting the environment while complying with the RoHS directive as well as the EU REACH regulation.

In addition, we make use of design and simulation programs and modern techniques resulting from an arduous R&D work for production, so that we get the cables with less loss of market insertion and with a resistance and durability, as we have commented enviable.

Coaxial cable dielectric variants

One of the many features to know this coaxial cable in detail is its dielectric, which can be of various types.

This is the insulating layer that separates the wire mesh from the core of the cable to avoid short circuits, noise and interferences with lost signals in the wire mesh.

  • Air Dielectric Coaxial Cable

The attenuation of this cable is, due to obvious characteristics, very low.

coaxial cable teflon PTFE RG-316 ALFA'R

  • Coaxial cable with solid polyethylene dielectric cable

It’s next in consistency but the losses are higher.

  • Coaxial cable with cellular or spongy polyethylene dielectric cable

It has a greater attenuation and its use is advisable only for the short distance, of 15 meters maximum.

These are, in essence, the characteristics of coaxial cable and dielectric variants, if you have any questions you can contact us at any time.


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