Connectors and adapters for coaxial cable
We have coax cable connectors, screw adapters and adapters in stock. Find the crimp and screw connectors and adapter for coaxial cables. We have a wide range of FME, N Type, BNC, SMA, TNC, UHF and 7-16DIN adapters.

Male, Female and Reverse Polarity coax connectors

Connectors are available as Female (female) and Male (male) and there is a Reverse Polarity version in both genders. If a connector has a hole in the middle it is female and if there is a pin in the middle it is male. NB! This does not apply to an RP connector (Reverse Polarity). With a Reverse Polarity the genders are the other way around, you can see this in the photo below, on the left is an SMA-Male connector and on the right is an SMA-Male-RP connector.

SMA-Male-and-SMA-Male-Reverse-Polarity

• Pin in Center = Male
  
• Hole in the middle = Woman

What Reverse Polarity connectors are used for

RP (Reverse Polarity) connectors usually used for antennas and wireless LAN (WiFi 2.4/5 GHZ) systems. The center pin is the "reverse" of the connectors used in mobile systems. Reverse Polarity connectors will have the same threads (internal or external), but the pin and hole are reversed. As an example: a regular SMA-Male connector with a pin in the middle and thread on the inside. An SMA-Male RP (with reverse polarity (RP)) has the same thread on the inside, but has a hole in the middle. See the right connector in the photo above.

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

Overview of most common RF connectors

SMA

SMA stands for "Sub Miniature type A" connector and is a design from the 1960s and is widely used in the age 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, the outside is Male and there is a 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 protruding from the center of the connector. On the right of the photo above you see an RP-SMA-Male connector. You 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 (Male). The standard SMA-Male and the RP-SMA-Male connectors both have a thread on the inside of the housing, which means that they can be screwed onto the thread on the outside of a female (Female) SMA or SMA-RP. You can never mix and match standard SMA connectors and RP-SMA connectors with each other because the pins and sockets can never make good contact and thus cannot allow the signal to pass through. Male (Male) SMA and Male (Male) Reverse Polarity (RP)-SMA connectors both have threads on the inside of the housing allowing you to connect them to a Female (Female) SMA or Female (Female) RP-SMA connector that has the thread 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 closure. All you have to do is insert the connector and turn it a quarter turn. The internal spring system keeps the connectors 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 communications until 4G was introduced. The FME connector is designed up to approximately 2Ghz. Due to the rise of 4G, 2600MHz is also used, making it not very suitable. Because of this, 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 1940s. You will find this N connector on many outdoor antennas because new developments ensure that this connector is suitable up to 18 GHz and the connector has a seal so that it is weather resistant. The N-Female connector is 1.57 cm with a 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, partly 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 kind of Mini MCX.

Mini UHF

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

PL Connector also called PL-259 or UHF plug

PL Connector also called PL-259 and UHF plug. This is a connector that has been used since the 1930s. A PL connector can be found, for example, on VHF antennas. The PL-Female connector has a diameter of 1.57 cm 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 1960s and are 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 plug has a Male center pin.

SMB

SMB stands for "Sub Miniature version B" connector was developed in the 1960s and are slightly smaller than version A (SMA). An SMB connector is a click connector for quickly connecting and disconnecting. 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 (male) plug has a Female (female) center pin and an SMB-Female (female) has a Male (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 plug has a Male center pin.

TNC
TNC stands for "Threaded Naill-Concelman" connector and is the same as a BNC, but the TNC is equipped with a thread instead of the Bayonet closure. The TNC connector has its origins in the 1950s and is suitable for up to 11Ghz. We often see this connector on GPS systems or on 4G routers from Cisco, among others. For WiFi, among other things, TNC-R/P (Reversed Polarity) connectors are often used. The outside is Male (thread on the inside) and the inside is 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 where the inner pin has been changed gender. A standard TNC connector cannot be used with a TNC-RP connector, but adapter connectors are 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 thread on the outside of the body / housing
  
• TNC-RP-Male , this has a socket (pin input) on the inside and thread on the inside of the body/housing
  
• TNC-Female , this has a socket (pin input) on the inside and thread on the outside of the body/housing
  
• TNC-Male , this has a pin on the inside and thread 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, among others. This connector looks very similar to the CRC9 so it is important to first determine 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, outer contact 16mm) are mainly found in the professional market. These large, robust connectors are, for example, on the antennas that we see in the operators' masts. Due to the internal O-ring, these connectors are resistant to weather influences, and in combination with their robustness, we often see them in military applications.

4.3/10 DIN connector

The 4.3/10 DIN connector (core thickness 4.3mm, outer contact 10mm) is the little brother of the 7/16DIN connector and we mainly see this 4.3/10DIN in the professional market. These robust connectors are, for example, on the antennas that we see in the operators' masts. Due to the internal O-ring, these connectors are resistant to weather influences, and 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 approximately 2003 to supplement the very widely used SMA connectors. The QMA can be easily and quickly connected and disconnected 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, a lot can be placed on a small surface, which is a must with current antennas, QMA and SMA connectors DO NOT fit together!

Fakra connector

A Fakra connector is actually a luxury SMB connector. The inside of a Fakra is the same as SMB, but it is equipped 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 this plastic contains different lugs. This connector has been developed for the automotive industry. Each color also indicates its own application, for example 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 also F-Type connector is mainly used in connecting video and radio signals. However, these connectors can also occur on internet modems. Sometimes with this connector the core of the cable is used as a center pin 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

For solderless connectors, also described as solderless, the name "clamp" is often mentioned. Such as the UHF-Male clamp connector (70-7350), this 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 don't see much on new products these days. This connector became known for its use on various plug-in cards and dongles from Huawei that were also issued by KPN, among others. This connector is also known as DDS-E620.

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

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