J1012F21K

Series:	PULSEJACK™ J1
Packaging:	Bulk
Part Status:	Obsolete
Connector Type:	RJ45
Number of Ports:	1
Number of Rows:	1
Applications:	10/100 Base-TX, AutoMDIX
Mounting Type:	Through Hole
Orientation:	90° Angle (Right)
Termination:	Solder
Height Above Board:	0.550" (13.97mm)
LED Color:	Green - Green
Number of Cores per Jack:	4
Shielding:	Shielded, EMI Finger
Features:	Board Guide
Tab Direction:	Up
Contact Material:	Phosphor Bronze
Contact Finish:	Gold
Operating Temperature:	0°C ~ 70°C
Contact Finish Thickness:	15.0µin (0.38µm)
Shield Material:	Brass
Housing Material:	Thermoplastic

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Modular Connectors - Jacks With Magnetics

Modular connectors, for telecommunication, audio/video and data applications, are designed to be used with a variety of cables, plugs, and sockets. In general, a modular connector consists of a receptacle and a plug. The receptacle connects to a cable, and the plug connects to a mating cable. The modular connector can be either wired or non-wired.Jacks with magnetics is one type of modular connector. It is a three-pole connection system designed to be used in conjunction with an RJ45 socket. The magnetic shield is surrounded by a copper or ferrite braid and is used to eliminate EMI (electromagnetic interference). The plug has three pins on one end and a ferrite core on the other. When used with an RJ45 socket, the ferrite core of the jack connects to an EMI shield around the socket opening.The primary purpose of jack with magnetics is to block EMI or RF (radio frequency) signals from entering and affecting the performance of the overall modular connection. The EMI shield is typically made of an aluminum or copper alloy and blocks high frequency electrical signals from entering the system. The ferrite core helps absorb the energy from the high frequency electrical signals, causing them to dissipate.The magnetics in the jacks also provide a greater level of protection than standard modular connectors. The magnetic field around the jack provides a greater level of shielding than the EMI shield alone. This improved shielding prevents equipment from becoming exposed to external electrical interference.Using a jack with magnetics in conjunction with an RJ45 connector can significantly improve the performance of a modular connection. The shielding of the magnetic field helps reduce the crosstalk or EMI interference between adjacent circuits, allowing for more efficient transmission of data. The presence of the ferrite core also helps the signal remain stable, which assists with signal integrity.Jack with magnetics offer greater protection than standard modular connectors and are ideal for applications where EMI or RF interference could affect the performance or reliability of the connection. They are commonly used in applications such as Ethernet networks, radios, amplifiers, and USB devices. They are usually paired with an RJ45 female connector, although they can be used with other connectors such as F Connectors or BNC connectors.The use of a jack with magnetics provides improved shielding, protection, and signal integrity, thereby ensuring reliable and secure connections. The initial cost of using such a jack is fairly low, with the added benefit of improved shielding and performance. With the growing demand for high-speed data transmission, jacks with magnetics provide a cost-effective solution for protecting connections.

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Part Number	Manufacturer	Price	Quantity	Description