203 Datasheet, PDF (1/2 Pages) Littelfuse – Surface Mount Fuses - Subminiature Surface Mount & Dip Types

Innovative Technology
for a Connected World
203 EMI Gaskets
Fabric-over-Foam
BLACK COLOR NI/CU POLYESTER TAFFETA FABRIC-OVER-FOAM
Laird Technologies’ Fabric-over-Foam (FoF) 203 EMI gaskets consist of a black color and provide
excellent EMI shielding performance for customers where EMI issues occur. The 203 series EMI
gaskets are composed of electrically conductive fabric wrapped around a soft urethane foam
core. They are supplied with either a conductive or non-conductive pressure sensitive adhesive
(PSA), and can be equipped with an Extended Release Liner (ERL) on the adhesive. The 203 is a
halogen-free product that can be created with cross-section profiles such as rectangle, D, C, P, T,
knife, bell shapes, and others. The 203 EMI gaskets can be further customized to an application
by die-cutting, hole punching, notching, etc.
FEATURES
• Fabric-over-Foam gaskets are RoHS compliant
• Halogen-free per IEC-61249-2-21 standard
• Black color
• Low surface resistivity of < 0.06 Ω/□
provides excellent conductivity
• Shielding effectiveness of >100 dB across a
wide spectrum of frequencies
• Extremely low compression forces allow for
use of lighter materials
• Fabric is highly conductive to provide good
EMI shielding and grounding
• Abrasion resistant metallized fabrics
show virtually no degradation in electrical
performance after 750,000 cycles
• Available with conductive or
non-conductive PSA
• Many cross-section profiles available such as
rectangle, D, C, P, T, knife, bell and more
• Profile gaskets can be cut to specified lengths,
kiss-cut on release liner, or mitered to form
frame configurations
global solutions: local support TM
USA: +1.866.928.8181
Europe: +49.0.8031.2460.0
Asia: +86.755.2714.1166
MARKETS
• Cabinet applications
• LCD and Plasma TV
• Medical equipment
• Servers
• Printers
• Blends in with black colored housings
• Networking equipment
• Desktop computers
• No visible color difference in air vents
FORCE/DISPLACEMENT/RESISTANCE (FDR)
0.5
8
0.45
7
0.4
6
0.35
0.3
5
0.25
4
0.2
3
0.15
2
0.1
0.05
1
0
0
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
% Compression
SHIELDING EFFECTIVENESS (dB)
140
120
100
80
60
40
20
0
1.00E+04
1.00E+05
1.00E+06
1.00E+07
1.00E+08
1.00E+09
Frequency Hz
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