3M CN4490 3/4" X 3"-100 datasheet, PDF

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3M CN4490 3/4" X 3"-100: DescriptionSHEET FABRIC 19.1X76.2MM 100/PK; CategoryTopical application Wireless rf/communication; File Size24KB，2 Pages; Manufacturer3M; Websitehttp://3M.com/esd; Environmental Compliance

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3M CN4490 3/4" X 3"-100 Overview

SHEET FABRIC 19.1X76.2MM 100/PK

3M CN4490 3/4" X 3"-100 Parametric

Parameter Name	Attribute value
type	shielding plate
shape	rectangle
length	3.000"（76.20mm）
width	0.750"（19.10mm）
Thickness - Total	0.002"（0.05mm）
Operating temperature	-
Adhesive	Conductive, single sided
Material	Nickel Copper (NI/CU) Fabric

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3M Fabric Tape CN-4490

Double-Coated Conductive

Data Sheet

October 2008

™

Description

3M™ Fabric Tape CN-4490 is a conductive, non-woven fabric and unique electrically

conductive pressure-sensitive acrylic adhesive.

CN-4490 tape is typically used for applications requiring excellent electrical conductivity

from the substrate through the adhesive to the conductive backing. Common uses

include grounding and EMI shielding equipment, components, shielded rooms, etc.

The unique and thin metallized backing offers the additional benefits of excellent flexibility

and conformability, very light weight, and exceptional strength. The conductive backing

also helps minimize the possibility of finger lacerations.

Applications

Shielding

Effectiveness

Many factors determine the true shielding effectiveness of a shielding tape, including

type and thickness of foil adhesive type, intimacy of contact, smoothness of

application surface, strength and frequency of the EMI signal, etc.

Typical Properties

Technical information provided consists of typical product data and should not be used for

specification purposes. Unless otherwise noted, all tests are performed at room temperature.

Physical

Property (Test Method)

(ASTM

D1000

unless noted)

Color

Adhesive

Type of Backing

Total Thickness

(backing plus adhesive)

Liner Thickness

Breaking Strength

Adhesion Strength

Grey

Conductive acrylic

Copper/Nickel coated conductive non-woven fabric

2.0 mils (0,05 mm)

5.8 mils (0,14 mm)

35 lb/in (16 kgf/25 mm)

40 oz/in (1000 gf/25 mm)

Typical Value

US units (metric)

1 of 2

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