1840555-7

LED Color:	Green - Green
Housing Material:	Polybutylene Terephthalate (PBT), Polyester
Shield Material:	Brass
Contact Finish Thickness:	50.0µin (1.27µm)
Operating Temperature:	0°C ~ 70°C
Contact Finish:	Gold
Contact Material:	Phosphor Bronze
Tab Direction:	Down
Features:	Board Guide
Shielding:	Shielded, EMI Finger
Number of Cores per Jack:	12
Series:	MagJack®
Height Above Board:	0.540" (13.72mm)
Termination:	Solder
Orientation:	90° Angle (Right)
Mounting Type:	Through Hole
Applications:	10/100/1000 Base-T, AutoMDIX
Number of Rows:	1
Number of Ports:	2
Connector Type:	RJ45
Part Status:	Active
Packaging:	Tray

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Introduction

Modular connectors, also known as jack plugs, or telephone jacks, are a type of electrical connection that is used in the construction, maintenance, and repair of communications systems. The 1840555-7 jack connectors are one of the many variations available. This article will discuss the application field and working principle of the 1840555-7 jack connector.

Application Field and Conformance Standards

The 1840555-7 jack connector is often used in the assembly of internal telephone systems and external transmission equipment. This connector is designed to meet the requirements of the TIA/EIA-568-B.2-2002 standard. This is the standard for Category 5e cabling and connectors, as defined by the Telecommunications Industry Association. It specifies the performance requirements for eight-pair wire cabling that is used for telephone systems, data networks, and other voice-band communication applications.

Features

The 1840555-7 jack connector features a zinc-plated steel shell, with a T568A/B compliant wiring arrangement. The shielded contacts are made of phosphor bronze and provide superior signal transmission. The contacts are rated for 13 A/26 AWG to 20 A/20 AWG, with a contact resistance of less than 100 milliohms. The class-F insulated contacts are designed for high-frequency applications, where attenuation and crosstalk must be minimized. The connector also features a quick-install latch, which eliminates the need for the user to screw the connector to the wall jacks or patch panels.

Magnetic Jacks

The 1840555-7 jack connector also features an integrated magnetic feature. This feature, commonly referred to as a magnetic jack, helps to reduce crosstalk and line-induced noise. The magnetic jack works by sensing the presence of an electrical current as it flows through the circuit connections of the connector. The magnetic field created by the current is then used to create a "bubble" of protection around the circuit, preventing any external interference from passing into it.

Working Principle

The 1840555-7 jack connector uses a combination of passive and active electronics to provide signal isolation and protection. The passive circuitry is designed to offset the crosstalk due to the change in electrical current as it passes through the connecting jack. The active electronics are used to detect and filter out any external interference that may be present in the signal. This helps to ensure that only clean signals are sent and received.

Conclusion

The 1840555-7 jack connector is an excellent solution for those looking for a reliable and secure connection for their telephone systems and data networks. The integrated magnetic feature helps to reduce crosstalk and line-induced noise, and the combination of passive and active electronics provides superior signal protection. With its quick-install latch and TIA/EIA-568-B.2-2002 compliant wiring arrangement, the 1840555-7 jack connector is an ideal choice for a variety of applications.

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