From a simple disturbance on a communication line to a total disruption of a safety-critical signal, Electromagnetic frequencies affect the functionalities of electrical components in different ways. EMI is a phenomenon where one electromagnetic field interferes with another, resulting in the distortion of both fields. This can cause serious issues with several systems working in various industries, from data and communication to health and even military services.  EMI is also known as radio frequency Interface (RFI)

In order to protect demanding applications, many electrical components including connectors, come with EMI/EMC shielding. This indicates the performance of a connector in an adverse situation where crosstalk is high. EMC stands for Electro Magnetic Compatibility. It is the ability to shield sensitive electronic components from electromagnetic (EMI)/ radio frequency interference (RFI).  It also prevents the stronger signals from leaking out and interfering with surrounding electronics. Apart from connectors, PCB elements such as IC chips, active components, and cables assemblies come with EMI shielding.

Connectors with EMI shielding will have a metallic screen or covering that absorbs the electromagnetic interference transmitted through the air. The shield absorbs the transmitted interference and channels it to a ground connection, or a virtual ground plane. The protected clean signal reaches the circuit, maximizing the performance of the connectors.  The material of the EMI shield, size, and thickness determine the effectiveness of EMI shielding.

Amphenol ICC’s filter connectors come with a specialised EMC design:

BNC RF connectors provide optimum capacitive decoupling between the connector body and the mounting panel by harmlessly dissipating EMI (Electromagnetic Interference) on the coaxial shield to the chassis ground through capacitors, while not affecting the DC and power supply frequencies.

FCE17 D-Sub Filter Connectors provide filtering of unwanted EMI, protecting the integrity of data signals in a mechanically stress-isolated design to ensure that capacitive elements survive shock and vibration. Improved EMI controls outperform the same filter components on a PCB. 

In addition, we also have a wide range of other connectors with EMI shielding, suitable for various applications. These include OCTIS I/O, Modular & Magnetic Jacks, and BergStak® 0.40mm Floating Board-to-Board Connector.