SSB Connectors

The complete range of coaxial connectors from SSB

We have a wide range in stock, suitable for various coax cables such as RG58, RG213 and LMR-400. Easily find the right crimp connectors, screw connectors and adapters for coax cables.

We offer, among other things:

• FME, N-Type, BNC, SMA, TNC, UHF and 7/16 DIN adapters
  
• Suitable for antennas, transmitters, scanners and WiFi systems.
  
• Available directly from stock

Male, Female and Reverse Polarity (RP) connectors

Coaxial plugs are available in Male and Female versions. A Male connector has a pin in the center, while a Female connector has a hole in the center.

With Reverse Polarity (RP) connectors this is the other way around, see example below:

• SMA-Male → Pin in the middle
  
• SMA-Male-Reverse Polarity → Hole in the middle ( The middle pin is "reverse")

Although the threading of an RP connector remains the same, the internal connections are reversed. This is important when choosing the right adapter or plug.

What are Reverse Polarity connectors used for?

RP (Reverse Polarity) connectors are widely used in WiFi systems (2.4 GHz / 5 GHz), wireless networks, antennas and transceivers. They ensure that standard coaxial connectors cannot simply be connected, thus preventing unauthorized modifications.

Tip: View the overview At the bottom of this page you will find a detailed description of common connectors and plugs.

An SMA-Male RP (with reverse polarity (RP)) has the same threads on the inside, but has a hole in the middle.

Above is an overview of the most common Reverse Polarity connectors compared to standard connectors.

SMA

SMA stands for "Sub Miniature type A" connector and is a design from the sixties and is used a lot in the time of 4G because it is compact, has low loss and because it is suitable for applications up to 18 GHz. And some versions even up to 26.5 MHz. The exterior of an SMA connector is a 6 side with a diameter of 7.9 mm. The SMA-R / P connector (Reversed Polarity) is often used for WiFi then the outside is Male and there is a screw thread on the inside with a Female center pin.

What are Reverse Polarity (RP) connectors?
SMA-Male-Vs.-SMA-Male-Reverse-Polarity connector

If you look closely at the image above, you will see an SMA-Male connector on the left with a pin sticking out of the middle of the connector. On the right of the above photo, you will see an RP-SMA-Male connector. You will see that the RP-SMA-Female connector has a socket (opening) instead of a pin in the middle. Reverse Polarity is also called reverse polarity in Dutch.

Both connectors are Male. The standard SMA-Male and the RP-SMA-Male connectors both have threads on the inside of the housing, meaning that they can screw onto the threads on the outside of a Female SMA or SMA-RP. You can never mix and match standard SMA connectors and RP-SMA connectors because the pins and sockets can never make proper contact and thus not allow the signal to pass. Male SMA and Male Reverse Polarity (RP) SMA connectors both have the threads on the inside of the housing, meaning that you can screw them onto a Female SMA or Female RP-SMA connector that has the threads on the outside of the housing.

BNC

BNC (Bayonet-Neill-Concelman) connector. This is a connector that can be quickly connected because it has a Bayonet lock. This means you only need to insert the connector and turn it a quarter turn. The internal spring system means that the connectors are pressed together so that they cannot come loose. These BNC connectors are available in 50 Ohm for transmitters and receivers and in 75 Ohm for video signals, among other things.

FME

FME stands for "For Mobile Equipment" connector was a standard connector in GSM communication until 4G was introduced. The FME connector is designed up to approx. 2Ghz due to the rise of 4G, 2600 MHz is also used, making it less suitable. As a result, the FME connector is mainly used for all 2G and 3G modems.

N-Connector or N-Type connectors

N-Connector also called N-Type was invented by Paul Neill. This is a connector that has been used since the forties. You will find this N-connector on many outdoor antennas because the new developments ensure that this connector is suitable for up to 18 GHz and the connector is provided with a seal so that it is weatherproof. The N-Female connector is 1.57 cm with 5/8-24 thread and is available in 50 Ohm and 75 Ohm.

MMCX

MMCX stands for "Micro Miniature Coaxial connector" and is a click connector that is suitable for at least 500 connections and is still often used because it is suitable for frequencies up to 6GHz. MMCX is regularly used in GPS systems and USB-DVB-T receivers, but GSM modems are also sometimes equipped with MMCX. The diameter of an MMCX connector is 2.4mm and is therefore a type of Mini MCX.

Mini UHF

Mini-UHF stands for "miniature UHF" connector also known as mini-PL or mini-PL259 connector is a small version of the well-known PL259 connector. This, originally a 1970s design for portable transceivers with a max. frequency of 2.5 GHz and a 3/8-24 thread.

PL connector (PL-259 or UHF plug)

PL-Connector also called PL-259 and UHF-plug. This is a connector that has been used since the thirties. A PL-connector can be found on VHF antennas for example. The PL-Female connector has a diameter of 1.57cm and 5/8-24 thread. This PL-Female is also sold under the name SO-239 or Navy Type 49190 and Navy Type 49194.

SMC

SMC stands for "Sub Miniature version C" connector was developed in the sixties and is slightly smaller than version A (SMA). An SMC connector is a screw/turn connector for a secure connection that cannot (easily) vibrate loose. This type of connector is suitable up to 10Ghz. An important point to pay attention to with the SMC connectors is that a Male plug has a female center pin and a Female therefore a Male center pin.

SMB

SMB stands for "Sub Miniature version B" connector was developed in the sixties and is slightly smaller than version A (SMA). An SMB connector is a click connector for quick connection and disconnection. This type of connector is suitable up to 4Ghz. An important point to take into account with an SMB connector is that an SMB-Male plug has a Female center pin and an SMB-Female has a Male center pin.

SSMC

SSMC stands for "Small Sub Miniature version C" connector is smaller than SMC. An SSMC connector is a screw/turn connector for a secure connection that cannot (easily) vibrate loose. This type of connector is suitable up to 12.4Ghz. An important point to pay attention to with the SSMC connectors is that a Male plug has a female center pin and a Female therefore a Male center pin.

TNC

TNC stands for "Threaded Naill-Concelman" connector and this is the same as a BNC, but the TNC is then provided with screw thread instead of the Bayonet closure. The TNC connector has its origins in the fifties and is suitable for up to 11Ghz. We often see this connector with GPS systems or with 4G routers from Cisco, among others. For WiFi, among others, TNC-R/P (Reversed Polarity) connectors are often used. In this case, the outside is Male (thread on the inside) and the inside Female (female center pin).

TNC-Reverse Polarity (RP)

In addition to the standard TNC connectors, there are also reverse polarity TNC connectors. This is a variant of the standard TNC in which the inner pin has been reversed. A standard TNC connector cannot be used with a TNC-RP connector, but there are adapter connectors available that allow this. A TNC or a TNC-RP connector connection can often be found on WiFi devices such as routers and modems with antenna.

Four types of TNC connectors:

• TNC-RP-Female , this has a pin on the inside and threads on the outside of the body/housing
  
• TNC-RP-Male , this has a socket (pin input) on the inside and threads on the inside of the body/housing
  
• TNC-Female , this has a socket (pin input) on the inside and threads on the outside of the body/housing
  
• TNC-Male , this has a pin on the inside and threads on the inside of the body/housing
  TS-9 connector

The TS-9 connector is a connector that we encounter on dongles from Huawei and USB modems. This connector looks a lot like the CRC9 so it is important to first be sure of the type of connector on your device. The difference between a TS9 connector and a CRC-9 is that the TS9 has a larger diameter compared to CRC9.

7/16 DIN connector

The 7/16 DIN connectors (core thickness 7mm external contact 16mm) are mainly seen in the professional market. These large robust connectors are for example on the antennas that we see in the masts of the operators. Due to the internal O-ring, these connectors are resistant to weather influences, this in combination with their robustness we also often see them in military applications.

4.3/10 DIN connector

The 4.3/10 DIN connector (core thickness 4.3mm external contact 10mm) is the little brother of the 7/16DIN connector and this 4.3/10DIN we mainly see in the professional market. These robust connectors are for example on the antennas that we see in the masts of the operators. Due to the internal O-ring these connectors are resistant to weather influences, this in combination with their robustness we often see them in military applications.

QMA

QMA stands for "Quick Minuature version A" connector, which has been on the market since around 2003 to supplement the very widely used SMA connectors. The QMA is easy and quick to connect and disconnect without tools and is suitable for up to 18GHz. The advantage is that after mounting the connector can be rotated 360 degrees for easy installation. We often encounter the QMA on antennas of GSM masts because they are small in size, many can be placed on a small surface, which is a must with the current antennas, QMA and SMA connectors do NOT fit each other!

Fakra connector

A Fakra connector is actually a luxury SMB connector. The inside of a Fakra is the same as SMB but it is provided with an extra plastic sleeve in a typical color. This sleeve ensures that connectors cannot vibrate loose and that the different colors do not fit together because there are different lugs in this plastic. This connector was developed for the automotive industry. Each color also indicates its own application, blue is for GPS and purple for GSM. The green-blue Fakra Z is universal and fits everywhere.

F-connector or F-Type connectors

The F-connector or F-Type connector is mainly used in connecting video and radio signals. However, these connectors can also be found on internet modems. Sometimes the core of the cable is used as a center pin with this connector and therefore nothing needs to be soldered, however, this is only possible if the diameter of the cable is correct, if the core is thicker or thinner, a separate center pin will be supplied.

Solderless connectors

Solderless connectors, also described as solderless, are often referred to as "clamp". For example, the UHF-Male clamp connector (70-7350) is a connector that you can clamp and/or screw (to clamp or to screw).

CRC9 connector

The CRC9 connector is a connector that we do not encounter much on new products these days. This connector became known through its use on various plug-in cards and dongles from Huawei that were also issued by KPN. This connector is also known under the name DDS-E620.

Connectors used for television signals are known by several names such as CAI which stands for "Central Antenna Installation" and IEC connectors. The correct name at IEC is IEC 61169-2 also known as "Belling-Lee connector" or Type 9.52. IEC stands for "International Electrotechnical Commission". All these names refer to one and the same slide connector that we find on European televisions. In other places in these cables such as splitters we also find F-connectors.

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