46X7501920.NN00

Series:	86750
Part Status:	Active
Type:	Shielding Tape
Shape:	--
Length:	65.617' (20.00m)
Width:	0.748" (19.00mm)
Thickness - Overall:	0.003" (0.08mm)
Operating Temperature:	--
Adhesive:	Conductive, Single Sided
Material:	Nickel-Copper (NI/CU) Fabric

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Introduction

Radio Frequency Interference (RFI) and Electromagnetic Interference (EMI) are universal phenomena that take place in environments with electromagnetic radiation. Many industrial and technological applications rely on accurate reception and measurement of electromagnetic signals. Therefore, RFI and EMI are serious concerns in many industries. While sources of interference are abundant in modern environments, some protection or prevention strategies must be adopted. In this article, we discuss the application field and working principle of 46X7501920.NN00, a product belonging to the group of RFI and EMI shielding and absorbing materials.

Application Field

46X7501920.NN00 is an electromagnetic interference (EMI) shielding and absorbing material, specifically designed for applications in the aerospace, automotive and military sectors. This material is required to prevent the emission of deliberately generated interfering signals, referred to as EMI, and to protect receivers from being overwhelmed by other sources on the airwaves, which are called RFI.The product has been certified to protect against EMI and RFI in both military and commercial applications. In particular, it has been tested to meet CECC003-080 requirements for EMI/RFI shielding effectiveness. The CECC003-080 is a military, aviation and automotive requirement for different shield types. The product is also compliant with MIL-STD-461 and RE102, which are two of the most widely used EMI/RFI shielding standards.

Working Principle

The 46X7501920.NN00 is an extremely efficient material at blocking and dissipating both EMI and RFI signals. The versatility of the material lies in its dual-tier design, which combines two protection layers into a single, highly effective product. The first layer is an EMI shield, which is made of a highly conductive metal with low magnetic permeability. This layer is composed of a thin sheet of metal, typically either aluminum or copper, which acts as a Faraday Cage. By using the Faraday Cage effect, the shielding layer of the product bounces off external electromagnetic signals, deflecting them away from the protected device. This reduces the interference and noise generated by external signals, which can often overwhelm the device’s own signal. The second layer of the product is a RFI absorbent layer, which is made of a carbon-based material, such as graphite or carbon-fiber. This layer works by absorbing the external RFI and dissipating it as heat. This is an effective way to reduce the noise and interference caused by RFI, which can often be hazardous to the protected device.

Conclusion

The 46X7501920.NN00 is an EMI/RFI shielding and absorbing material designed for applications in the aerospace, automotive and military sectors. It has been certified to meet CECC003-080, MIL-STD-461 and RE102 standards for shielding effectiveness. The product works by combining two layers: a metal Faraday Cage shielding layer and a carbon-based RFI absorbent layer. This dual-tier strategy provides an efficient protection from both EMI and RFI.

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