Robert McKeown Co., Inc. - SOFT-SHIELD® 5000 Low Closure Force EMI Strip Gaskets - C-Fold Strips

SOFT-SHIELD 5000 Series EMI gaskets are designed to meet the stringent shielding and mechanical performance requirements of today’s commercial electronic enclosures, medical electronics, factory automation equipment, reprographics and grounding applications. A growing number of standard profiles and sizes provide flexibility when selecting a gasket for a specific application. Custom profiles or sizes can also be produced.

Each SOFT-SHIELD 5000 Series gasket consists of an electrically conductive fabric jacket over a highly compressible urethane foam core. The nickel-plated, woven nylon rip-stop jacket is selfterminating when cut. Chosen for its excellent compressibility, the foam core typically requires less than 1 lb/in (0.175 N/mm) closure force, making it especially useful for thin-walled plastic enclosures. Standard pressure-sensitive adhesive attachment tape (PSA) makes SOFT-SHIELD 5000 Series gaskets a user-friendly and cost-effective design solution.

Every profile in the SOFT-SHIELD 5000 Series can be provided in a General Duty version or a UL 94V-0 rated version, as needed, with no difference in performance.

Features

Choice of General Duty or UL 94V-0 rated versions
Typically require < 1 lb/in (0.175 N/mm) closure force – 5 times lower than other gaskets
> 90 dB attenuation from 20 MHz to 10 GHz
Asymmetrical profiles, as well as “C”, “V”, “P”, “D” shapes
No performance degradation after 10,000 compression cycles
Wide release liner for easy removal
Kiss-cut parts on release sheets for easy “peel-and-stick”
grounding applications
Self-terminating jacket – no sharp edges
Tested to Bellcore GR-64-Core Airborne Contaminants requirements
Custom lengths, custom profiles

Benefits

Cost-effective
Alternative to BeCu fingerstock
Pick and place installation
Technical application support
Global distributor/fabricator network
Application-ready custom parts (die-cut, spliced, etc.)

Note: Compression/deflection curves are typical. Dimensions shown do not include PSA thickness (0.005 inch typically). Actual size shown with PSA strip. All SOFT-SHIELD 5000 Series profiles can be supplied in either General Duty or UL 94V-0 rated versions.

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Unit of Measure

Items	82-111-74008 SOFT-SHIELD® 5000 Low Closure Force EMI Strip Gaskets - C-Fold Strips	82-111-74027 SOFT-SHIELD® 5000 Low Closure Force EMI Strip Gaskets - C-Fold Strips	82-112-74008 SOFT-SHIELD® 5000 Low Closure Force EMI Strip Gaskets - C-Fold Strips	82-112-74027 SOFT-SHIELD® 5000 Low Closure Force EMI Strip Gaskets - C-Fold Strips	82-121-74008 SOFT-SHIELD® 5000 Low Closure Force EMI Strip Gaskets - C-Fold Strips
Jacket Type	N/A Nickel-plated nylon rip-stop fabric
PSA Tape Backing	N/A No PSA tape	N/A No PSA tape	N/A No PSA tape	N/A No PSA tape	N/A PSA tape
Gasket Service Rating	N/A General duty (urethane foam core)	N/A General duty (urethane foam core)	N/A UL 94V-0 rating	N/A UL 94V-0 rating	N/A General duty (urethane foam core)
Profile Number	N/A 74008	N/A 74027	N/A 74008	N/A 74027	N/A 74008
Height	N/A 0.385 in9.78 mm	N/A 0.420 in10.67 mm	N/A 0.385 in9.78 mm	N/A 0.420 in10.67 mm	N/A 0.385 in9.78 mm
Width	N/A 0.420 in10.67 mm	N/A 0.465 in11.80 mm	N/A 0.420 in10.67 mm	N/A 0.465 in11.80 mm	N/A 0.420 in10.67 mm
Conductive Pressure-Sensitive Adhesive	N/A Non-conductive adhesive
Operating Temperature Range	N/A –40 to 70 ºC
Test Method Compression Set	N/A ASTM D3574 (modified)
Compression Set	N/A < 15 %
Test Method Electrical Conductivity	N/A CEPS-0002
Electrical Conductivity Max.	N/A 0.1 O/sq
Test Method Adhesive Peel Strength	N/A ASTM D1000 (90° Bend)
Adhesive Peel Strength Min.	N/A 4 lb/in0.7 N/mm
Product Forms	N/A SQ, REC., D, C, P, L and Custom
Typical Applications	N/A Doors, Panels, Seams, Faceplates, Ground Pads
Method of Manufacture	N/A Dispensed foam
Jacket Material	N/A Ni/Ag Plated rip-stop Nylon
Foam	N/A High Performance Urethane Foam
Attachment Method (PSA)	N/A Non conductive, high temp, high tack, closed cell, acrylic PSA
Baseline EMI Shielding	N/A 90 dB
Shielding Effectiveness After Cycling	N/A Better
Softness	N/A Better
Compression Set ASTM D395 - Method B	N/A 70 ºC - 10 %
RoHS Compliant	N/A Yes
Configurations	N/A Gaskets are supplied in standard 8-foot lengths or cut-to-length strips. Depending on the profile, gasketing can also be supplied on spools. For rapid peel-and-stick grounding applications, the material is supplied as kiss-cut parts on polyester film release backers, or as individual pieces. Chomerics also fabricates single-piece, spliced picture frame gaskets from continuous lengths. With their fully jacketed surfaces, these gaskets are ideally suited for low closure force applications that require 360° EMI shielding, or the ease of installing a onepiece gasket. Chomerics’ Applications Engineering department welcomes the opportunity to provide assistance with design and prototype fabrication of SOFT-SHIELD 5000 Series EMI Gaskets in custom profiles.
Typical Application-Ready Solutions	N/A Mobile phone grounding Conditions and Requirements minimize thru-resistance for optimum grounding maximum 0.25 x 0.25 inch footprint accommodate 0.040 inch variation in gap snap-in plastic cover with 2 lb max. load at 50% gasket deflection high volume application SOFT-SHIELD Gasket Solution highly conductive jacket offers low resistance standard 6 x 6 mm profile, no customization required meets low closure force requirements kiss-cut parts on release paper allow quick peel-and-stick installation Interface between aluminum casting and plastic antenna housing Conditions and Requirements overcome 45 dB leakage problem replace multiple strips with single-piece design for ease of installation 0.030 inch flatness tolerance on component mating surfaces low cost a priority SOFT-SHIELD Gasket Solution effectively
Typical Tolerances	N/A Typical cross section tolerances: ±0.010 in. (0.25 mm) for all dimensions up to 0.04 in. (1.02 mm) ±0.020 in. (0.51 mm) for all dimensions above 0.04 in. (1.02 mm) Detailed part drawings are available on request. Typical length tolerances: 0.10 to 6.0 in. (0.25 to 15.2 cm) ± 0.030 in. (0.76 mm) 6.1 to 18.0 in. (15.5 to 45.7 cm) ± 0.060 in. (1.52 mm) 18.1 to 42.0 in. (46.0 to 106.7 cm) ± 0.075 in. (1.91 mm) 42.1 to 96.0 in. (107.0 to 243.8 cm) ± 0.090 in. (2.29 mm) Typical kiss-cut tolerances: 0.04 to 0.12 in. (1.02 to 3.05 mm) ± 0.015 in. (0.38 mm) 0.121 to 0.40 in. (3.07 to 10.16 mm) ± 0.035 in. (0.89 mm)