321WA4SXK99A10X

Mounting Type:	Free Hanging (In-Line)
Note:	Contacts Not Included
Color:	Black
Dielectric Material:	Polybutylene Terephthalate (PBT), Glass Filled
Mating Cycles:	--
Operating Temperature:	-55°C ~ 125°C
Ingress Protection:	--
Shell Finish Thickness:	--
Shell Material, Finish:	Steel, Tin Plated
Features:	--
Flange Feature:	Housing/Shell (Unthreaded)
Series:	--
Contact Type:	Coax or Power
Shell Size, Connector Layout:	4 (DC, C) - 21WA4
Number of Rows:	2
Number of Positions:	21 (17 + 4 Coax or Power)
Connector Type:	Receptacle for Female Contacts
Connector Style:	D-Sub, Combo
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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D-Sub, D-Shaped Connectors - Housings

D-sub connectors, also known as D-shaped connectors, are a type of electrical fitting that is used in many electronics projects and applications. They have two distinct parts: the connector and the housing. The connector is a female component that has a pin-shaped contact called an "alignment pin" that mates with a corresponding male contact, called a "housing pin". The two pins are inserted into each other, and are secured together with a locking tab.The housings are a molded plastic shell that provides protection and electrical insulation to the pins. Typically, they come in the shape of the letter "D" with a flat edge, which is why they are often referred to as "D-shaped connectors". Housings come in a variety of shapes and sizes, and can accommodate up to 99 pins in extreme cases. The most common housings size range from 6 to 15 pins.Housings can also be divided into two types: shielded and unshielded. Shielded housings use a nickel-plated steel wrapper that goes around the pins, providing an additional layer of protection from electromagnetic interference (EMI). Unshielded housings are the most popular type, as they are lighter and less expensive than their shielded counterparts.The most common application of D-sub electronic housings is transmitting signals between two pieces of equipment. They are used in a variety of industrial and consumer applications, including home theaters, cameras, audio/visual equipment, HVAC systems, and more. They are relatively easy to install and require minimal maintenance.Other applications of D-sub housings include power distribution, grounding, and even data communication. For example, a specialized type of D-sub housing is used in SCSI (Small Computer System Interface) systems to connect multiple drives. They are also used in large devices such as mainframes, printers, and disk drives.In addition to being used in a variety of applications, D-sub housings can be customized to fit any specific purpose. For example, they can be designed to withstand extreme temperatures, pressures, vibrations, and other environmental conditions. This makes them a versatile and reliable choice for a variety of applications.Overall, D-sub connections are an essential part of the electronics world. They come in a wide range of shapes and sizes, and can be highly customized for any specific purpose. Depending on the type of application, they can provide basic electrical connections as well as advanced power distribution and secure data transfer. With their lightweight design and versatile customization options, D-sub housings are a popular choice for many electronic projects.

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