CCH-18-101-0100 - N/A - Datasheet.Live

CHO-FABTM and CHO-FOIL®

Family of EMI Shielding Tapes with Conductiv e Adhesive

continued

*An embossed version of CHO-FOIL copper tape is available for a

more attractive surface appearance.

•Conductive elastomers •Knitted wire mesh

•Conductive coatings, sealants, adhesives

•Cable shielding products •EMI/ESD shielding laminates

•Shielded vents and windows

•FCC/VDE and TEMPEST testing

LEADER IN EMI SHIELDING INNOVATION, DESIGN, AND TEST TECHNOLOGY

TECHNICAL

BULLETIN

202

CHO-FABTM tape is a corrosion resistant

nickel-plated cloth coated with Chomerics’

highly conductive pressure-sensitive

adhesive. This adhesive contains a

uniform dispersion of conductive particles

that create a very low electrical resistance

through the tape. This feature results in

superior shielding performance in a wide

variety of environmental conditions.

CHO-FAB tape is extremely

strong, lightweight and has excellent

conformability/wrapability to enhance

shielding performance and appearance.

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 ground-

ing applications.

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. The copper

version of CHO-FOIL tape meets the

requirements of MIL-T-47012 and the

tinned copper foil tape meets MIL-T-10727

for corrosion resistance.

CHO-FOIL and CHO-FAB shielding

tapes are available in standard 36 yard

length rolls, and die cut custom configura-

tions.* For applications requiring surface

conductivity only, copper tape is available

with a non-conductive adhesive.

TYPICAL APPLICATIONS

• Provides 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 trouble-

shooting, using CHO-FOIL tape to

shield ventilation slots or seam gaps.

• Provides electrical continuity in seams

of EMI shielded rooms and electronic

enclosures.

• Supplies 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.

• Provides corrosion-resistant ground

contact points.

• Fabric tape available where weight

and flexibility are important such as

for wrapping cables.

CHO-FABTM and CHO-FOIL

® Family of EMI Shielding Tapes With Conductive Adhesive continued

Tel: 781-935-4850 Fax: 781-933-4318Tel: 781-935-4850 Fax: 781-933-4318

Tel: 781-935-4850 Fax: 781-933-4318

Please consult Chomerics’ Applications Engineering Department

for assistance with a custom application involving a need for material in other than slit roll form.

Technical Data

PROPERTY TEST METHOD TYPICAL VALUES

Part Number Prefix –– CCH CCE CCJ CCK CCD CAD CFT

Fabric/Foil Type –– 1 oz. 1 oz. embossed Aluminum 1 oz. Tin- 1 oz. Aluminum Nickel Plated

RA Copper RA Copper Plated Copper RA Copper Cloth

Fabric/Foil Thickness, –– 1.4 (.036) 1.4 (.036) 2 (.051) 1.6 (.041) 1.4 (.036) 2 (.051) 5 (.127)

mils (mm)

Adhesive Type –– Particle Filled Acrylic Pressure Sensitive

Adhesive Thickness, –– 1.5 (.038) 2 sides:

mils (mm) 1.5 each (.038 each) 1.5 (.038)

Total Thickness, –– 2.9 (.074) 4 (.110) 3.5 (.089) 3.1 (.079) 4.4 (.112) 5 (.127) 6.5 (1.651)

mils (mm)

Temperature Range, __ –40 to 400 –40 to 180

°F (°C) (–40 to 205) (–40 to 82)

Electrical Resistance, MIL-STD-202C <.003 (.0004) <.003 (.0004) <.010 (.002) <.003 (.0004) <.010 (.002) <.010 (.002) <.100 (.020)

ohms/in2 (ohms/cm2)

Flame Resistance UL Subject 510 PASS MEETS PASS PASS MEETS MEETS N/A

Adhesion to Aluminum ASTM D1000 >40 [2.5] (438)

oz./inch [ppi] (N/m)

APPLICATION NOTESAPPLICATION NOTES

APPLICATION NOTES

1. To ensure maximum adhesion, remove all surface oils and dust from the

areas to be taped.

2. When applying the tape, note that oils from the hand can affect adhesion.

3. These tapes are compatible with industry standard tape dispensers.

CCH –36 –101–ZZZZ Copper foil, conductive adhesive

CCE –36 –101–ZZZZ Copper foil, conductive adhesive, embossed

CCH –36 –301–ZZZZ Copper foil, non-conductive adhesive

CCJ –36 –201–ZZZZ Aluminum foil, conductive adhesive

CCK –36 –101–ZZZZ Tin plated copper foil, conductive adhesive

CCD –36 –101–ZZZZ Copper foil, conductive adhesive 2 sides

CAD –36 –101–ZZZZ Aluminum foil, conductive adhesive 2 sides

CFT –36 –101–ZZZZ Nickel-plated fabric, conductive adhesive

ORDERING INFORMATION

Standard rolls can be ordered through Chomerics’

authorized distributors using these part numbers:

0050010001500200030004000600080012002400

0.5 in. 1.0 in. 1.5 in. 2.0 in. 3.0 in. 4.0 in. 6.0 in. 8.0 in. 12 in. 24 in.

12.7mm 25.4mm 38.1mm 50.8mm 76.2mm 102mm 152mm 203mm 305mm 610mm

(Other widths available up to 24 in. [61

cm])

ZZZZ = WIDTH

NOTICE: The information contained herein is to the best of our knowledge true and accurate. However, since the varied conditions of potential use are beyond our control, all recommendations or suggestions are

presented without guarantee or responsibility on our part and users should make their own tests to determine the suitability of our products in any specific situation. This product is sold without warranty either expressed

or implied, of fitness for a particular purpose or otherwise, except that this product shall be of standard quality, and except to the extent otherwise stated on Chomerics’ invoice, quotation, or order acknowledgement.

We disclaim any and all liability incurred in connection with the use of information contained herein, or otherwise. All risks of such are assumed by the user. Furthermore, nothing contained herein shall be construed

as a recommendation to use any process or to manufacture or to use any product in conflict with existing or future patents covering any product or material or its use. 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 in the document entitled “Offer of Sale,” available from

Chomerics on request.

Printed in U.S.A. Rev. 1-1197

Chomerics

Div. of Parker Hannifin Corp.

77 Dragon Court

Woburn, MA 01888-4014

Tel: 781-935-4850

FAX: 781-933-4318

Parker Hannifin PLC

Chomerics Division

Parkway, Globe Park

Marlow, Bucks., SL7 1YB, England

Tel: (44) 1628 486030 FAX: (44) 1628 890053

France Freephone Tel: (0590) 8170

Germany Freephone Tel: (0130) 818074

www.chomerics.com

Table A: Reliability Data

TEST TEST METHOD CCH CCE CCJ CCK CCD CAD CFT

Initial Surface Resistivity (SR) (milliohms)* CHO-TP-57*** <2 <2 <2 <2 N/A N/A <100

Initial Through Resistivity (TR) (milliohms)* CHO-TP-57*** <3 <3 <35 <2 <15**** <100**** <100

Initial Peel Strength ASTM D1000 44.8 44.8 51.2 46.4 48 70.4 44.8

OZ./inch [ppi] (N/m)** [2.8] (490) [2.8] (490) [3.2] (560) [2.9] (508) [3.0] (525) [4.4] (710) [2.8] (490)

Initial Taber Abrasion Surface Resistivity

(SR) (milliohms) CHO-TP-57*** <6 <3 <6 <9 N/A N/A <100

Heat Aging SR (milliohms)* CHO-TP-57*** <10 <2 <20 <2 N/A N/A <100

185°F (85°C)/ TR (milliohms)* CHO-TP-57*** <16 <3 <22 <2 <7**** <60**** <150

168 hrs. Peel, OZ./inch [ppi] (N/m)** ASTM D1000 57.6 62.4 76.8 67.2 73.6 78.4 59.2

[3.6] (630) [3.9] (683) [8.0] (840) [4.2] (735) [4.6] (805) [4.8] (840) [3.7] (648)

Heat Aging SR (milliohms)* CHO-TP-57*** <10 <3 <20 <2 N/A N/A <100

250°F (121°C)/ TR (milliohms)* CHO-TP-57*** <70 <3 <23 <2 <3**** <10**** <150

168 hrs. Peel, OZ./inch [ppi] (N/m)** ASTM D1000 57.6 59.2 75.2 51.2 70.4 84.8 43.2

[3.6] (630) [3.7] (648) [4.7] (823) [3.2] (560) [4.4] (770) [5.3] (928) [2.7] (473)

Heat Aging with SR (milliohms)* CHO-TP-57*** N/A N/A N/A <2 N/A N/A <100

Humidity 95% RH/ TR (milliohms)* CHO-TP-57*** N/A N/A N/A <2 <115**** <150**** <150

185°F (85°C)/ Peel, OZ./inch [ppi] (N/m)** ASTM D1000 N/A N/A N/A 78.4 78.4 84.8 46.4

[4.9] (858) [4.9] (858) [5.3] (928) [2.9] (508)

Salt fog corrosion/ SR (milliohms)* CHO-TP-57*** N/A N/A N/A <2 N/A N/A <100

168 hrs. TR (milliohms)* CHO-TP-57*** N/A N/A N/A <2 <275**** <600**** <1000

Peel, OZ./inch [ppi] (N/m)** ASTM D1000 N/A N/A N/A 76.8 62.4 80 33.6

[4.8] (840) [3.9] (683) [5.0] (875) [2.1] (368)

Taber abrasion SR (milliohms)* CHO-TP-57*** <3 <5 <2 <6 N/A N/A <175

500 gramweight,

CS-10 wheel,

500 cycles

N/A = Not Applicable

* All measurements of surface resistivity and through resistivity made at ambient temperature with tapes mounted on tinned copper

substrate 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.

NOTE: The following table represents actual experimental test data taken according to Chomerics internal test procedures. This data

differs from the previous table due to differences in test methods.