Which of the following are examples of d-sub connector applications?

A D-subminiature connector, also known as a D-sub, is a ubiquitous connector type named for its distinctive D-shaped metal shell. It is used in a broad variety of applications from consumer products to satellite equipment.

D-sub Connectors Defined

Which of the following are examples of d-sub connector applications?
D-sub connectors contain two or more parallel rows of contacts surrounded by a characteristic D-shaped metal shell. The shell not only provides mechanical support and ensures the correct orientation, but it may also screen against electromagnetic interference (EMI). Several methods are used to connect the system circuitry to the contacts in D-sub connectors, including crimp, solder cup, PCB solder, PCB press-fit and wire wrap connections. Many times locking systems are implemented to ensure the connectors remain in a mated state despite shock and vibration conditions.

D-sub connectors are sometimes confused with the Micro-D family and the SCSI attachment family (featuring connectors like the HD-50 and HD-68). These products are separate and distinct from D-sub connectors. D-subs are sometimes referred to as “rectangular rack and panel” connectors and often carry vernacular references such as DB9, DB15, DB25, DB37 and DB50 where the numbers refer to the connector’s pin count.

USES

D-sub connectors work with a wide variety of electronics. They are often found on communications ports, creating connections between different products such as computers, printers, and power supply units. DB9 connectors are used for token ring networks as well as other computer networks and the controller area network (CAN). D-sub connectors have also been used for computer video output, game controller ports, multi-channel analog, and AES digital audio in recording studios.

Over the years, the connectors’ use has varied with the technology available at the time. For example, early Macintosh computers used them to connect to external floppy disks, and the Commodore Amiga used a D-sub for external floppy disks as well as video output. But due to their size and cost, D-sub connector use in consumer products has all but disappeared. However, they are still popular in non-consumer applications where its form factor, size, density and cost combination offer significant value to the end user.

PRODUCTS

Positronic carries a wide variety of D-sub connector families and D-sub accessories. The standard and high-density D-subminiature families are highly reliable and feature six package sizes and multiple performance options for the best cost to performance ratio. All Positronic D-subs feature solid, machined contacts to ensure reliability, durability and strength.

The Combo-D connector is sub-category of D-sub connectors, which is characterized by a mixed density insulator that combines size 8 and size 20 or 22 contacts allowing for the combination of signal, power, fiber optic, coax, and/or high voltage contacts in a single package. Ideal as an input/output connector interface, these connectors have many package sizes and contact variants and a variety of accessories and options including blind mating and sequential mating.

Or if you’re looking for something a bit more cosmic, try the high performance D-sub connector, which is designed for use in space flight. Available with a lightweight aluminum hood for protection and low magnetic characteristics, many of these connectors are qualified to the NASA GSFC S-311 specification.

Which of the following are examples of d-sub connector applications?

D-Sub Connectors

The D-subminiature connector, more commonly known as a D-Sub connector is a family of connectors that were introduced by Cannon in 1952 and they are still being widely used today. Although in today’s electronic marketplace technology is ever-changing and adapting to meet consumer wants and needs. Despite being over 60 years old, there are still plenty of devices using D-Sub technology that we are still reliant on. In this article, we are going to discuss what D-subs are, where they are commonly used, what they look like and their importance in today’s modern world.

What is a D-Sub Connector?

The D-sub is one of the most popular electronic connectors in the world, with many types, sizes, and applications. It is a very versatile type of electrical connector. These compact connectors take their name from their characteristic D-shaped shield. D-subs establish a connection between two points to facilitate the transfer of information or power.

D-subs were used for monitors and disk drives, now they are used for industrial and military networking, sensors and in areas where electromagnetic interference can be an issue to the device or the to the environment.

D-sub is the name given to a family of connectors, and several connectors that make up the family are Combi D-Sub Connectors, Dual-Port D-Sub Connectors, Filtered D-Sub Connectors, High-Density D-Sub Connectors, Standard D-Sub Connectors and D-Sub Hoods which will now be explained in further detail.

Which of the following are examples of d-sub connector applications?

Combi D-Sub Connectors are a hybrid connector featuring different connector styles within a D-Sub housing. This allows designers the ability to have a mix of different contacts within a single D-Sub whether these be signal, high current, high voltage, coaxial or pneumatic. Deltron AG, a Swiss manufacturer of high-end D-subs have 24 standard styles to choose from each offering distinct features within 5 different housing sizes. The number of contacts range from 2-43. Terminations can be either solder pin, press-fit or solder cup. The power contacts can be 10A, 20A, 30A or 40A and can be requested with sealing up to IP68.

To understand more about IP rating please see the blog on our website which explains it in more detail here.

Dual-Port D-Sub Connectorsare designed for applications that require multiple connector ports with limited “PCB” space, through the stacking of two 90° D-Sub connectors, one on top of the other. Dual Port D-Subs are available in various designs with numerous assemblies and the number contacts range from 9-37.

Which of the following are examples of d-sub connector applications?

Filtered D-Sub Connectors have a very good filter quality to protect against Electromagnetic Interference. The Planar Filter Connectors (FP) and the PI Filter Connectors from Deltron AG are specially developed for industrial applications and offer excellent protection against Electromagnetic Interference (EMI) and Radio Frequency Interference (RFI) which can be caused by lightening, solar magnetic storms, radio signals, mobile phones, electronic motors, computers, medical equipment and power lines.

Standard D-Sub Connectors are high quality and robust connectors designed for the most demanding applications. They are available with different assembly parts for mounting, for example, crimp assembled,  press-fit assembled, solder cup assembled, or 90° angled solder pin.

Which of the following are examples of d-sub connector applications?

High-Density D-Sub Connectors are designed for applications which require the best possible contact density. Due to the high density of the 15, 26, 44, 62 and 78 contacts, this series is ideal for the most modern applications. A very common high-density connector is the Video Graphics Array (VGA) connector which is a 3 row 15 pin connector used in computers.

D-Sub Hoods are designed to perfectly match Deltron AG’s range of high-quality D-Sub connectors. They are available in 9, 15, 25, 37 or 50 pin versions. The D-Sub Hoods provide optimum protection to the connector to prevent damage.

What does a D-Sub Connector look like?

They are shaped like the letter “D,” with one side slightly longer than the other. Due to the shape, there is only one way to connect a device. All D-Sub connectors have a metal housing that surrounds two or more rows of male or female contacts. Inside the housing, the contacts are aligned to match the equivalent pins or sockets in the mating half of the connector. The contacts are generally gold-plated copper alloy, and they are surrounded by a layer of insulation made from a variety of materials, including glass-filled thermoplastic, a common insulating plastic.

All the Deltron AG D-Subs discussed above have contacts that are finished in a hard gold plate over nickel and they are available in different quality classes (QC).  For example, QC1 is capable of 500 mating cycles or QC2 which is capable of 200 mating cycles.

What is a D-Sub Connector used for?

D-Subs were once heavily used in home computing, printer cables, computer game controllers, external floppy disk drives, network ports and multi-channel audio recording systems but technology has advanced the need for D-subs has decreased in these areas. As previously mentioned, they are now predominantly used in industrial, aerospace, military, transportation and medical diagnostics because they are extremely rugged, small enough to fit into tight spaces, have a very long-life cycle and can withstand being exposed to harsh environments.

Due to their ability to be created in multiple variations, be environmentally sealed & locked and have EMI filtering, D-Subs are used in many industries such as aerospace, military, industrial, transportation and medical. They are commonly used in critical applications such as helicopters, combat aircraft, high-speed rail, patient monitors, ultrasound and MRI imaging.

What are the advantages and disadvantages of a D-Sub Connector?

As modern technology is forever changing and constantly becoming more lightweight and sleeker, D-Subs are being utilised less on modern devices like laptops, monitors and televisions where physical depth and weight are important to the user. D-Sub connectors take much longer to plug in and unplug due to their size and termination, unlike USB and HDMI connectors.

The advantages of D-Sub Connectors are they are extremely rugged and can be used in harsh environments. They are small enough to fit into tight spaces and have a long-life cycle. They are diverse and work well within many different industries as we have discussed throughout. D-Subs are well suited for locking technology which means that hardware keeps the plug and socket components in the mated position, they have several different terminations e.g., solder, screw and crimp meaning they offer better resistance to tampering as well as jostling. As can be seen, the D-sub technology may not be the most up to date solution but remains the best solution in many different environments.

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Latest from the blog

What are D

D-sub connectors work with a wide variety of electronics. They are often found on communications ports, creating connections between different products such as computers, printers, and power supply units.

What is a D

When used as a monitor interface, a D-Sub port is also known as a VGA port, an analog connection standard that's been around for some time. The connector is a DE-15 connector with 15 pins in three rows, often referred to as a "mini-D-Sub 15-pin" or "D-Sub 15-pin" connector. (Some connectors omit unused pins.)

Why is it called D

Commonly called “DB connectors” or “D-subs,” these compact connectors take their name from their characteristic D-shaped shield, which protects both sides of the connector from mechanical and electromagnetic interference.

How many DB connectors are there?

This original series of D-type connectors had pin numbers of 9, 15, 25, 37 and 50 pins and also a 19 way is available. The common pin configurations are: A=15 pin, B=25 pin, C=37 pin, D=50 pin, E=9 pin. ... D-type connector numbering..