3M CN3190 4" X 5"-25

Series:	CN-3190
Part Status:	Active
Type:	Shielding Sheet
Shape:	Rectangular
Length:	5.000" (127.00mm)
Width:	4.000" (101.60mm)
Thickness - Overall:	0.004" (0.11mm)
Adhesive:	Conductive, Single Sided
Material:	Nickel-Copper (NI/CU) Fabric

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Introduction

3M CN3190 4" X 5"-25 is an RFI (Radio Frequency Interference) and EMI (Electromagnetic Interference) shielding and absorbing material. It provides maximum protection against unwanted RF or EMI signals and is frequently used in a variety of application fields such as aerospace, defense, automotive, medical and consumer electronics. 3M CN3190 4" X 5"-25 is also implemented in wide range of other industries, like railroad, industrial safety, etc. In order to understand its application field and working principle, some of the specifications and features of this product will be discussed in this paper.

Material Details and Specifications

3M CN3190 4" X 5"-25 is constructed from an elastomeric foam material, with low-surface-energy acrylic adhesive that adheres to almost any surface; including uneven and irregular surfaces. This adhesive is designed to protect against harsh and demanding environments. The material has a high level of shielding efficiency reaching up to 90 dB, at frequencies ranging from 10 MHz to 3000 MHz. The material is also available in other sizes, such as 4" X 10"-24, 6" X 10"-36, and 12" X 10"-60 sheets. All these sizes are designed to meet rigorous EMI and RFI requirements.

Developmental Process and Methodology

The development of 3M CN3190 4" X 5"-25 was done with an aim of providing reliable shielding performance and high environmental durability. An extensive research and development program was carried out in order to test the product’s shielding efficiency, environmental durability and adhesion strength. The product was tested for its shielding effectiveness, temperature and humidity resistance, and adhesive effectiveness. Additionally, before the product was released, it underwent various tests such as thermal cycling, hot and cold shock testing, as well as strain relief testing.

Working Principle

The material is primarily designed to block RF and EMI radiation signals from escaping or entering into an enclosure. It serves as an effective shield against unwanted outside radiation from entering the enclosure and prevent radiations from escaping the enclosure. It is designed to provide effective RF and EMI shielding performance up to 90 dB efficiency for a wide frequency range of 10 MHz to 3000 MHz.

Applications Field

3M CN3190 4" X 5"-25 is mostly used in aerospace, defense, automotive, medical, and consumer electronics applications. It is often used in the aerospace industry for such applications as aircraft and helicopters simulators. In the medical field, it is used for patient and equipment protection. The material is also used to shield electronic components as well as cables from EMI and RFI signals.In transportation industry, 3M CN3190 4" X 5"-25 is used to protect a variety of systems, such as alarm systems, HVAC systems, automated inspection systems, and dashboard systems. In consumer electronics, it is often used to provide protection against EMI and RFI disruptions, allowing for a more enjoyable and comfortable user experience.

Conclusion

3M CN3190 4" X 5"-25 is an RFI and EMI shielding and absorbing material designed to provide maximum protection from unwanted RF and EMI signals. The advanced adhesive technology and the high-level shielding efficiency of the material offers better protection even in harsh and demanding environments. This material is widely used in such applications as aerospace, defense, automotive, medical, and consumer electronics, providing reliable and durable shielding performance.

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