DK-621-0412-S

Series:	--
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Connector Style:	Triaxial
Connector Type:	Jack, Female Socket
Contact Termination:	Solder
Shield Termination:	Solder
Impedance:	--
Mounting Type:	Panel Mount
Mounting Feature:	Bulkhead - Front Side Nut
Cable Group:	--
Fastening Type:	Threaded
Number of Ports:	1
Features:	--
Housing Color:	--
Ingress Protection:	--
Includes:	--
Body Material:	--
Body Finish:	--
Center Contact Plating:	--
Dielectric Material:	--
Operating Temperature:	-65°C ~ 125°C
Center Contact Material:	--
Mating Cycles:	500
Insertion Loss:	--

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Introduction

Coaxial connectors (RF) are commonly used in various electronic communication applications as electrical connection between two pieces of equipment. This type of connection is employed usually to meet the needs of high-frequency RF signals for taking comfort of a good level of screening effectiveness and stability of transmission performance. Standardized coaxial connection types, such as Type F, Type N, and Type BNC, have been available for many years. Recently, the DK-621-0412-S was introduced to enhance transmission performance with regard to both RF and microwave signals.

DK-621-0412-S Application Field

The DK-621-0412-S coaxial connector is a miniature version of the standard Type F connector, invented to improve the performance of RF and microwave transmissions in small form-factor applications. It has a mated pair impedance of 50Ω and a mated pair VSWR of 1.3:1 or less. This type of connector is designed to consistently operate up to 18 GHz with excellent shielding effectiveness from circuit to circuit and dust ingress protection. The DK-621-0412-S range of connectors is designed for use in applications with small size and weight requirements, such as mobile devices, handheld transmitters, and digital cameras which require high levels of interference protection. This is particularly important in developing wireless technologies which require more reliable connections to perform small form-factor applications at higher frequencies. In addition, it is also used in other wireless communication and RF system applications such as pagers, wireless LANs, base-stations, GPS receivers and broadcast cameras.

DK-621-0412-S Working Principle

The DK-621-0412-S coaxial connector operates by creating a tight connection and maintaining excellent screening performance between the two mated coaxial components. This type of connector consists of two components which mate together by screwing or twisting, creating a coaxial electrical connection between the two components. Since it requires only one connection, it has a considerable advantage over other types of connections, such as two- and three-phase power plugs.The DK-621-0412-S connector comprises of a female body and receptacle. The male plug contacts the female body by an internal, gold plated spring contact which produces a positive, stress free connection between the two components. The contact pin is designed to be round in shape so that it could self-align as it is inserted into the female body. This helps to achieve a good contact between the two components, and minimise the contact resistance.The body of the DK-621-0412-S connector is made from brass and is plated to protect the connectors from environmental pressures. Depending on the application, the contacts can be either gold plated or nickel plated for increased durability. A dielectric insulator is used to maintain excellent electrical performance, and a metal shell provides shielding. The entire connector is light-weight and resistant to water, dust, and vibration which makes it suitable for a wide range of applications.The DK-621-0412-S uses a standard 50Ω transmission line with a characteristic impedance of 75Ω. The transmission line is DC-blocked so that no DC connection is established between the two components. To ensure a consistent electrical performance, the connectors are sealed and the internal shielding must be provided to resist any external equipment.

Conclusion

The DK-621-0412-S coaxial connector is a miniature version of the standard Type F connector, designed to provide improved transmission performance for RF and microwave frequencies. It is available in a variety of materials and sizes to suit different applications. It is a reliable and cost-effective solution which offers a secure connection, excellent shielding performance, and low mating/unmating forces.

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