EFG(01)-240X240T0800 vs 4-6-1120

Part Number	EFG(01)-240X240T0800	4-6-1120
Category	RFI and EMI - Shielding and Absorbing Materials	RFI and EMI - Shielding and Absorbing Materials
Manufacturer	KEMET	3M (TC)
Description	FLEX SUPP. SHEET 240X240X0.1	TAPE ALUM FOIL 101.6MMX5.5M
Package	-	-
Series	EFG	1120
Type	Absorbing Sheet	Shielding Tape
Operating Temperature	-40°C ~ 105°C	-
Shape	Square	-
Length	9.449" (240.00mm)	18.000' (5.50m)
Width	9.449" (240.00mm)	4.000" (101.60mm)
Thickness - Overall	0.005" (0.13mm)	0.004" (0.10mm)
Adhesive	Non-Conductive, Single Sided	Non-Conductive, Single Sided
Material	Polymer Resin, Magnetic Powder	Aluminum Foil

1. What are common types of shielding materials?

Metals: Copper, aluminum, and steel for enclosures and cables.

Conductive coatings: Used on plastic housings.

Conductive fabrics or meshes: Flexible options for shielding irregular shapes.

Carbon-based materials: Lightweight options for EMI shielding in modern applications.
2. What factors influence the selection of shielding materials?

Frequency range: The effectiveness depends on the material's ability to block specific frequencies.

Conductivity and permeability: Higher values improve shielding performance.

Environment: Resistance to corrosion, heat, or chemicals may be necessary.

Weight and flexibility: Important for mobile and compact devices.
3. How are shielding effectiveness and absorption measured?

Shielding effectiveness: Measured in decibels (dB), indicating how much interference is blocked.

Absorption: Tested by the material's ability to dissipate electromagnetic energy.
4. What emerging trends are shaping the RFI/EMI shielding industry?

Development of lightweight, flexible shielding materials for wearable and IoT devices.

Nanotechnology-based coatings for improved shielding efficiency.

Environmentally friendly, recyclable materials.

Enhanced shielding for higher frequencies used in 5G and mmWave applications.