3M 1181 3/4" X 2"-100

Series:	1181
Part Status:	Active
Type:	Shielding Sheet
Shape:	Rectangular
Length:	2.000" (50.80mm)
Width:	0.750" (19.05mm)
Thickness - Overall:	0.004" (0.09mm)
Operating Temperature:	-40°C ~ 130°C
Adhesive:	Conductive, Single Sided
Material:	Copper Foil

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RFI and EMI - Shielding and Absorbing Materials

The 3M 1181 3/4" X 2"-100 is designed to address the issue of Radio Frequency Interference (RFI) and Electromagnetic Interference (EMI). It is part of 3M\'s extensive range of products designed to protect electronics from potentially damaging RFI and EMI.RFI and EMI can come from a variety of sources, from cellular phones to cordless phones to microwave ovens. These frequencies can interfere with radio signals and other electronic communications equipment, such as GPS, medical equipment, and ATM machines. The 3M 1181 3/4" X 2"-100 attenuates or absorbs these frequencies, thus shielding and protecting electronic devices from the potentially damaging effects of EMI and RFI.The construction of the 3M 1181 3/4" X 2"-100 consists of a FM approved adhesive copper foil and a conductive polyester film. The adhesive back makes installation of the product quick and easy. The product has U.L. recognition and is tested and compliant with MIL-STD-1741, MIL-STD-2299, ASTM E-1996 for plasma arc, and other test codes.The product is designed for use across a wide variety of applications, from automotive, consumer electronics, and military equipment, to medical electronics. Its combination of protection, conductivity, and flexibility makes it a popular choice for RFI and EMI shielding and absorption.In terms of working principle, the 3M 1181 3/4" X 2"-100 utilizes a Faraday cage effect to shield electronics from EMI/RFI interference. In simple terms, the product acts like a shield around the device, trapping incoming EMI/RFI energy and allowing only the intended frequencies to pass through. This protects the device from external interference and allows signals to flow freely.The product will also absorb and dissipate internal EMI/RFI energy generated by the device. The adhesive copper foil and conductive polyester film combination serves to absorb and dissipate this energy, preventing it from interfering with the device\'s performance or other devices in the environment.In conclusion, the 3M 1181 3/4" X 2"-100 is an effective, easy to use solution for providing RFI and EMI shielding and absorption across a wide variety of applications. Its use can help protect sensitive electronics from potentially damaging interference, thus improving the reliability and performance of the equipment.

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