2388-.25

Series:	Q-Zorb
Part Status:	Obsolete
Type:	Absorbing Sheet
Shape:	Square
Length:	12.000" (304.80mm)
Width:	12.000" (304.80mm)
Thickness - Overall:	0.200" (5.08mm)
Operating Temperature:	--
Adhesive:	--
Material:	Silicone Elastomer

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RFI and EMI - Shielding and Absorbing Materials

The use of Radio Frequency Interference (RFI) and Electromagnetic Interference (EMI) protection materials has become increasingly important in today\'s rapidly changing technological world. In order to protect electronic circuits, components and systems from unwanted interference, shielding and absorbing materials are employed. This article examines the various types of shielding and absorbing materials available, and looks at the applications and working principle of the 2388-.25 material.

Types of Shielding and Absorbing Materials

Broadly speaking, shielding and absorbing materials fall into two categories – conductive and non-conductive. Conductive materials, such as aluminum, copper, silver, or nickel are usually used when complete electrostatic shielding is required. Non-conductive materials such as carbon loaded rubber or polypropylene are often used when absorbance of EMI and RFI is desired. Such materials absorb the electromagnetic waves and convert them into heat.

The Application of 2388-.25

One of the most common shielding and absorbing materials is 2388-.25. This material is a combination of carbon and rubber, and is often referred to as a "Carbon-Rubber Shielding Component". It is a non-conductive material, but has the ability to absorb and reduce a broad range of interference across multiple frequencies. This makes it ideally suited for applications such as communication systems, aerospace systems, automotive systems, and marine systems.

The Working Principle of 2388-.25

The absorption of electromagnetic energy by 2388-.25 works on a principle called "critical damping". Essentially, this means that energy is absorbed as long as the material is compressed sufficiently. The material is designed to convert the incoming electromagnetic energy into mechanical energy and heat. The material is then compressed as it absorbs energy, and is returned to its uncompressed state when the energy dissipates, allowing it to absorb a new wave of energy.

Conclusion

The 2388-.25 material is an excellent example of a shielding and absorbing material that is widely used in a number of applications. Its ability to absorb and reduce a broad range of interference across multiple frequencies makes it an ideal choice for a variety of applications. By understanding the working principle of this material, it is possible to ensure its effective use when shielding electronic circuits, components, and systems from unwanted interference.

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