4789AB51K08550

Series:	--
Part Status:	Active
Type:	Fabric Over Foam
Shape:	D-Shape
Width:	0.374" (9.50mm)
Length:	85.500" (217.17cm)
Height:	0.252" (6.40mm)
Material:	Polyurethane Foam, Nickel-Copper Polyester (NI/CU)
Plating:	--
Plating - Thickness:	--
Attachment Method:	--
Operating Temperature:	--

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RF/EMI Contacts, Fingerstock and Gaskets: 4789AB51K08550 Application Field and Working Principle

Radio frequency interference, or RFI, and electromagnetic interference, or EMI, can cause significant issues when left unaddressed. RFI and EMI are the term used to describe the electromagnetic energy that is emitted and the electromagnetic energy that is seen by an electronic sensor. EMI and RFI both require the use of shielding, absorbing, and filtering materials in order to help offset the unwanted disturbances. However, the most effective protection from EMI and RFI often comes in the form of contacts, fingerstock, and gaskets. 4789AB51K08550 is a Fire Retardant Rubber (FRR) fingerstock designed specifically for grounding and shielding applications. The product is an electrically conductive, fire-retardant rubber gasket with a patented side-clamping mechanism for mounting to sheet metal. 4789AB51K08550 is suitable for use in various electronic systems in fields such as aviation, military, telecommunication, and automotive.The 4789AB51K08550 is designed to provide excellent grounding performance when installed on components such as panels, housings, connectors, electrical components, and cable assemblies. These components are often found in control systems, military applications, and other high-power applications that require shielded environments. The rubber fingerstock is able to absorb RF and EMI energy, preventing it from being radiated from or entering into the shielded area. The 4789AB51K08550 product is manufactured in a rectangular shape that is able to conform to the contours of a sheet metal housing, connection, or other substrate. It is made of an elastomeric, conductive material. The fingers allow for secure installation of the fingerstock to a substrate, ensuring a reliable contact. The fingers are also designed to reduce strain on the contact points in order to prevent EMI or RFI leakage. The 4789AB51K08550 product works by creating a current loop between the contact surface and the substrate. When the contact surface is in intimate contact with the substrate, current is able to flow freely between the two surfaces. This current then creates an electrical shield which is capable of dissipating RFI and EMI energy. Further, the fingerstock utilizes a patented side-clamping mechanism, ensuring a secure contact between the two surfaces. The 4789AB51K08550 fingerstock is designed to meet most industry standards including MIL-DTL-22520F and M22759AR/9A. In addition, the fingerstock has excellent resistance to vibration and temperature. It is able to operate in temperatures ranging from -55℃ to +150℃, and is able to withstand up to 20 Gs of vibration. The fingerstock also features an UL 94 V-0 flame rating, making it suitable for non-critical environments. In conclusion, the 4789AB51K08550 contact fingerstock is an effective and efficient product for providing shielding from RFI and EMI. With its secure clamping mechanism, excellent resistance to vibration and temperature, and UL flame rating, the fingerstock is an ideal choice for applications in fields such as aviation, military, telecommunication, and automotive.

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