1 US Headquarters TEL +(1) 781-935-4850 FAX +(1) 781-933-4318 • www.chomerics.com Europe TEL +(44) 1628 404000 FAX +(44) 1628 404090 Asia Pacific TEL +(852) 2 428 8008 FAX +(852) 2 423 8253 South America TEL +(55) 11 3917 1099 FAX +(55) 11 3917 0817 Chomerics’ CHO-FOIL tapes are an economical EMI shielding solution for a variety of commercial uses. The tapes are available in copper, aluminum, or tinned copper foil backed with Chomerics’ highly conductive pressure-sensitive adhesive*. Typical properties are shown in Table 1 on the next page, and reliability data appears in Table * Recognized Under the Component Program of Underwriters Laboratories, Inc. CHO-FAB tape is a corrosion resistant nickel-plated cloth coated with Chomerics’ highly conductive pressure-sensitive adhesive*. CHO-FAB tape is extremely strong and lightweight, and has excellent conformability/wrapability to enhance shielding performance and appear- ance. Use of corrosion resistant nickel- plated cloth and Chomerics’ superior metal-particle-filled conductive adhesive technology produces a tape used in a wide variety of EMI shielding and grounding applications. Typical properties are shown in Table 1 on the next page. Ordering Procedure Refer to Tables 2 and 3. All CHO- FOIL and CHO-FAB tapes are avail- able in standard 36 yard (32.9 m) rolls or die-cut custom configura- tions. Call Chomerics’ Applications Engineering Department for assis- tance with a custom configuration. 4 on page 148. CHO-FOIL copper tape is available with a non-conduc- tive adhesive for applications requir- ing surface conductivity only. An embossed version of CHO-FOIL copper tape is also available, for a more attractive appearance up to 6 inches (152 mm) wide. Standard length rolls and die-cut custom shapes can be ordered. ■ Provide a low impedance connection between a braided cable shield and the metal connector backshell in molded cables. An effective EMI shielded assembly can be achieved without soldering the tape to the braid or backshell ■ EMI radiation measurement troubleshooting, using CHO- FOIL tape to shield ventilation slots or seam gaps ■ Provide electrical continuity in seams of EMI shielded rooms and electronic enclosures ■ Supply electrical contact to surfaces that can’t be soldered to, such as conductive plastic or aluminum ■ EMI shield for cables by wrapping the tape around the cable. An overlap is recommended ■ ESD shielding ■ Provide corrosion-resistant ground contact points ■ Fabric tape available where weight and flexibility are important, such as for wrapping cables CHO-FOIL EMI Shielding Tape with Conductive Adhesive (Copper, Aluminum or Tinned Copper) CHO-FAB EMI Shielding Fabric Tape with Conductive Adhesive Typical Applications for CHO-FOIL and CHO-FAB EMI Shielding Tapes LAMINATES & GROUNDING PRODUCTS CHO-FOIL ® & CHO-FAB TM Shielding Tapes Chofab is available in standard (CFT) and rip-stop (CRS) nylon fabric forms. Both fabrics use nickel / silver plating to provide excellent electrical and corrosion resistance properties.
Transcript
1US Headquarters TEL +(1) 781-935-4850 FAX +(1) 781-933-4318 • www.chomerics.com
Europe TEL +(44) 1628 404000 FAX +(44) 1628 404090Asia Pacific TEL +(852) 2 428 8008 FAX +(852) 2 423 8253
South America TEL +(55) 11 3917 1099 FAX +(55) 11 3917 0817
Chomerics’ CHO-FOIL tapes arean economical EMI shielding solutionfor a variety of commercial uses.The tapes are available in copper,aluminum, or tinned copper foilbacked with Chomerics’ highlyconductive pressure-sensitiveadhesive*. Typical properties areshown in Table 1 on the next page,and reliability data appears in Table
* Recognized Under the ComponentProgram of Underwriters Laboratories, Inc.
CHO-FAB tape is a corrosionresistant nickel-plated cloth coatedwith Chomerics’ highly conductivepressure-sensitive adhesive*.CHO-FAB tape is extremely strongand lightweight, and has excellentconformability/wrapability to enhanceshielding performance and appear-ance. Use of corrosion resistant nickel-plated cloth and Chomerics’ superiormetal-particle-filled conductive adhesive technology produces atape used in a wide variety of EMIshielding and grounding applications.Typical properties are shown in Table1 on the next page.
Ordering ProcedureRefer to Tables 2 and 3. All CHO-
FOIL and CHO-FAB tapes are avail-able in standard 36 yard (32.9 m)rolls or die-cut custom configura-tions. Call Chomerics’ ApplicationsEngineering Department for assis-tance with a custom configuration.
4 on page 148. CHO-FOIL coppertape is available with a non-conduc-tive adhesive for applications requir-ing surface conductivity only. Anembossed version of CHO-FOIL copper tape is also available, for amore attractive appearance up to 6inches (152 mm) wide. Standardlength rolls and die-cut customshapes can be ordered.
■ Provide a low impedanceconnection between a braidedcable shield and the metalconnector backshell in moldedcables. An effective EMI shieldedassembly can be achievedwithout soldering the tape tothe braid or backshell
■ EMI radiation measurementtroubleshooting, using CHO-FOIL tape to shield ventilationslots or seam gaps
■ Provide electrical continuity inseams of EMI shielded roomsand electronic enclosures
■ Supply electrical contact to surfaces that can’t be solderedto, such as conductive plasticor aluminum
■ EMI shield for cables bywrapping the tape aroundthe cable. An overlap isrecommended
■ ESD shielding■ Provide corrosion-resistant
ground contact points■ Fabric tape available where
weight and flexibility areimportant, such as forwrapping cables
CHO-FOIL EMI Shielding Tapewith Conductive Adhesive(Copper, Aluminum or Tinned Copper)
Typical Applications for CHO-FOILand CHO-FAB EMI Shielding Tapes
LAMINATES & GROUNDING PRODUCTS
CHO-FOIL® & CHO-FABTM Shielding Tapes
Chofab is available in standard (CFT) and rip-stop (CRS) nylon fabric forms. Both fabrics use nickel / silver plating to provide excellent electrical and corrosion resistance properties.
US Headquarters TEL +(1) 781-935-4850 FAX +(1) 781-933-4318 • www.chomerics.comEurope TEL +(44) 1628 404000 FAX +(44) 1628 404090
Asia Pacific TEL +(852) 2 428 8008 FAX +(852) 2 423 8253South America TEL +(55) 11 3917 1099 FAX +(55) 11 3917 0817
2
Table 2
TAPE WIDTH CODES (ZZZZ) inch (mm)
PART NUMBER TAPE DESCRIPTIONCCH – 36 – 101 – ZZZZ Copper foil, conductive adhesive version
Adhesion to Aluminum )834( ]5.2[ 04> 0001D MTSAoz./inch [ppi] (N/m)
PROPERTIES
<0.003
Table 1
Slit rolls are available through Chomerics' authorized distributors.
Please consult Chomerics’ Applications Engineering Departmentfor assistance with a custom application involving a need for material in other than slit roll form.
* All measurements of surface resistivity and through resistivity made at ambient temperature with tapes mounted on tinned coppersubstrate, except for taber abrasion where a plastic substrate was used.
** 90° peel strength tests were done on an Instron at 2 inches per minute with tapes on a 2024 aluminum substrate.
*** CHO-TP-57 available from Chomerics on request.
**** Through resistivity measurement of double sided adhesive tapes done with tapes flanged between 2024 aluminum substrates.
RELIABILITY DATA
Table 4
NOTE: The following table represents actual experimental test data taken according to Chomericsinternal test procedures. This data differs from Table 1 due to differences in test methods.
Contact our ApplicationsEngineering Department todiscuss your requirements.
CHO-FOIL® & CHO-FAB™ Tapes continued
CRS
North America• 77 Dragon Court, Woburn, MA 01888-4014 TEL +(1) 781-935-4850 FAX +(1) 781-933-4318 Europe• Marlow, Bucks, UK TEL +(44) 1628 404000 FAX +(44) 1628 404090
Asia Pacific • Hong Kong TEL +(852) 2 428 8008 FAX +(852) 2 423 8253 South America• São Paulo, Brazil TEL +(55) 11 3917 1099 FAX +(55) 11 3917 0817
www.chomerics.com
WARNING – USER RESPONSIBILITY
FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE DEATH, PERSONAL INJUR Y AND PROPERTY DAMAGE.
This document and other information from Parker-Hannifin Corporation, its subsidiaries and authorized distributors provide prod uct or system options for further investigation by users having technical expertise.
The user, through its own analysis and testing, is solely responsible for making the final selection of the system and componen ts and assuring that all performance, endurance, maintenance, safety and warning requirements of the application are met. The user must analyze all aspects of the application, follow applicable industry standards, and follow the information concerning the pr oduct in the current product catalog and in any other materials provided from Parker or its subsidiaries or authorized distribu tors.
To the extent that Parker or its subsidiaries or authorized distributors provide component or system options based upon data or specifications provided by the user, the user is responsible for determining that such data and specifications are suitable andsufficient for all applications and reasonably foreseeable uses of the components or systems.
OFFER OF SALE
The items described in this document are hereby offered for sale by Parker-Hannifin Corporation, its subsidiaries or its authorized distributors. This offer and its acceptance are governed by the provisions stated in the detailed “Offer of Sale” elsewhere in this document or available at: http://www.chomerics.com/salesterms
TB 1015 EN 04/06 CHOMERICS and CHO-FOIL are registered trademarks of Parker Hannifin Corporaiton. CHO-FAB is a trademark of Parker Hannifin Corporation. All rights reserved
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