SSB Connectors

The complete range of coaxial connectors from SSB

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

We offer, among other things:

• FME, N-Type, BNC, SMA, TNC, UHF and 7/16 DIN, 4.3-10 adapters
  
• Suitable for antennas, transmitters, scanners and WiFi systems.
  
• Available directly from stock

Male, Female and Reverse Polarity (RP) connectors

Coaxial connectors 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 the example below:

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

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

What are Reverse Polarity connectors used for?

RP (Reverse Polarity) connectors are widely used in Wi-Fi systems (2.4 GHz/5 GHz), wireless networks, antennas, and transceivers. They prevent standard coaxial connectors from being plugged in, 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 1960s. It's widely used in the 4G era because it's compact, has low loss, and is suitable for applications up to 18 GHz. Some versions even reach 26.5 MHz. The exterior of an SMA connector is hexagonal with a diameter of 7.9 mm. The SMA-R/P (Reversed Polarity) connector is often used for Wi-Fi; it has a male connector on the outside and a female center pin on the inside with threads.

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

If you look closely at the image above, you'll see an SMA male connector on the left with a pin protruding from the center. On the right of the photo above, you'll see an RP-SMA male connector. Notice that the RP-SMA female connector has a socket (opening) instead of a pin in the center. Reverse polarity is also called reverse polarity in Dutch.

Both connectors are male. The standard SMA-Male and RP-SMA-Male connectors both have internal threads, meaning they can be screwed onto the external threads of a female SMA or SMA-RP connector. Standard SMA connectors and RP-SMA connectors cannot be mixed and matched because the pins and sockets will never make proper contact, thus preventing signal transmission. Male SMA and male Reverse Polarity (RP)-SMA connectors both have internal threads, allowing you to screw them onto a female SMA or female RP-SMA connector that has external threads.

BNC

BNC (Bayonet-Neill-Concelman) connector. This connector is quick to connect thanks to its bayonet lock. Simply insert the connector and give it a quarter turn. An internal spring system keeps the connectors pressed together, preventing them from coming loose. These BNC connectors are available in 50 ohms for transmitters and receivers and in 75 ohms for video signals, among other things.

FME

FME stands for "For Mobile Equipment." The connector was a standard connector in GSM communications until the introduction of 4G. The FME connector was designed for approximately 2 GHz. With the advent of 4G, 2600 MHz is also used, making it less suitable. Therefore, the FME connector is primarily used for all 2G and 3G modems.

N-Connector or N-Type connectors

The N-connector, also known as the N-Type, was invented by Paul Neill. This connector has been in use since the 1940s. You'll find this N-connector on many outdoor antennas because new developments make it suitable for up to 18 GHz and the connector is sealed for weather resistance. The N-female connector is 1.57 cm long with 5/8-24 threads and is available in 50 ohm and 75 ohm ratings.

MMCX

MMCX stands for "Micro Miniature Coaxial Connector" and is a click connector suitable for at least 500 connections. It's still widely used, partly because it's suitable for frequencies up to 6 GHz. MMCX is frequently 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 2.4 mm, making it a type of Mini MCX.

Mini-UHF

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

PL connector (PL-259 or UHF plug)

PL connector, also known as PL-259 and UHF plug. This connector has been in use since the 1930s. You'll find a PL connector on VHF antennas, for example. The PL-Female connector has a diameter of 1.57 cm and a 5/8-24 thread. This PL-Female is also sold under the designation SO-239 or Navy Type 49190 and Navy Type 49194.

SMC

SMC stands for "Sub Miniature Version C." This connector was developed in the 1960s and is slightly smaller than version A (SMA). An SMC connector uses a screw-and-turn connector for a secure connection that doesn't easily vibrate loose. This type of connector is suitable for up to 10 GHz. An important point to note with SMC connectors is that a male plug has a female center pin, while a female plug has a male center pin.

SMB

SMB stands for "Sub Miniature Version B" connector, developed in the 1960s 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 for up to 4 GHz. An important point to keep in mind with an SMB connector is that an SMB male plug has a female center pin, while an SMB female has a male center pin.

SSMC

SSMC stands for "Small Sub Miniature version C." It's a smaller connector than the SMC. An SSMC connector uses a screw-and-turn connector for a secure connection that won't easily vibrate loose. This type of connector is suitable for up to 12.4 GHz. An important point to note with SSMC connectors is that a male plug has a female center pin, while a female plug has a male center pin.

TNC

TNC stands for "Threaded Nail-Concelman" connector and is similar to a BNC, except that the TNC has a threaded connector instead of a bayonet connector. The TNC connector originated in the 1950s and is suitable for up to 11 GHz. It's often found in GPS systems or 4G routers from manufacturers such as Cisco. TNC-R/P (Reversed Polarity) connectors are often used for Wi-Fi, for example. In these connectors, the outer connector is male (internal threads) and the inner connector is female (female center pin).

TNC-Reverse Polarity (RP)

In addition to standard TNC connectors, there are also reverse polarity TNC connectors. This is a variation on the standard TNC where the inner pin is reversed. A standard TNC connector cannot be used with a TNC-RP connector; however, adapters are available that allow this. A TNC or TNC-RP connector connection is often found on Wi-Fi devices such as routers and modems with antennas.

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 entry) 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 found on dongles from Huawei and USB modems, among others. This connector is very similar to the CRC-9, so it's important to first confirm the connector type on your device. The difference between a TS-9 connector and a CRC-9 is that the TS-9 has a larger diameter than the CRC-9.

7/16 DIN connector

7/16 DIN connectors (core thickness 7mm, external contact 16mm) are primarily found in the professional market. These large, robust connectors are used, for example, on antennas found in operator masts. Thanks to their internal O-ring seal, these connectors are weather-resistant, and combined with their robustness, they are often used in military applications.

4.3/10 DIN connector

The 4.3/10 DIN connector (core thickness 4.3mm, external contact 10mm) is the smaller version of the 7/16 DIN connector, and this 4.3/10 DIN is primarily found in the professional market. These robust connectors are found, for example, on antennas found in operator masts. Thanks to their internal O-ring seal, these connectors are weather-resistant, and combined with their robustness, they are often used in military applications.

QMA

QMA stands for "Quick Minuature version A" connector, which came on the market around 2003 to complement the widely used SMA connectors. The QMA is quick and easy to connect and disconnect without tools and is suitable for frequencies up to 18 GHz. An advantage is that the connector can be rotated 360 degrees after mounting for easy installation. We often find the QMA on antennas of cell towers because of their small size, allowing for a large number of them to be placed in a small space, which is essential with today's antennas. QMA and SMA connectors are NOT compatible!

Fakra connector

A Fakra connector is essentially a luxury SMB connector. The inside of a Fakra is identical to an SMB, but it features an additional plastic sleeve in a distinctive color. This sleeve prevents connectors from vibrating loose and prevents different colors from fitting together, as the plastic has different lugs. This connector was developed specifically for the automotive industry. Each color also indicates its specific 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, also known as the F-Type connector, is primarily used for 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, so no soldering is required. However, this is only possible if the cable diameter is correct. If the core is thicker or thinner, a separate center pin will be included.

Solderless connectors

Solderless connectors, also sometimes described as solderless, are often referred to as "clamp." For example, the UHF male clamp connector (70-7350) is a connector that can be clamped and/or screwed.

CRC9 connector

The CRC9 connector is a connector we don't see much of these days on new products. It became popular through its use on various Huawei plug-in cards and dongles, which were also released by KPN, among others. This connector is also known as the 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 IEC designation is IEC 61169-2, also known as the "Belling-Lee connector" or Type 9.52. IEC stands for "International Electrotechnical Commission." All these designations refer to the same slide connector found on European televisions. In other places in these cables, such as at splitters, we also find F-connectors.

You can of course order SSB connectors from Deltron

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