Technical Data
March 2011
3M
™
XYZ-Axis Electrically Conductive
Acrylic eCAP Pads 7830N
Product Description
3M™ XYZ-Axis Electrically Conductive Acrylic eCAP Pads 7830N represent a breakthrough in PSA tape and conductive
gasket technology. 3M eCAP products are self-stick EMI gaskets or adhesive transfer tapes which provide good electrical
conductive path for EMI shielding and grounding in electronic devices. Developed with 3M proprietary technology, 3M
eCAP achieves a unique filler distribution in three-dimensional structures throughout the adhesive matrix. This filler
distribution in a high performance 3M adhesive makes the tape have good xyz-axis electrical conductivity and good
adhesion performance. 3M eCAP products are an excellent choice of EMC designers for initial to final stages of EMC
design for electronic components and assemblies.
Product Features
• Competitive price with low conductive filler content
• No burr
• Various thickness
– Standard thickness of 7830N: 0.2, 0.3, 0.4, 0.5 mm
• Easy application in die-cut or in roll form
• No need for additional process for PSA coating
• Single-sided
• Good XYZ-axis electrical conductivity
• Good shock absorption and damping performance
• Good adhesive and cohesive strength
• Rework – easy removal without adhesive residue
Applications
3M eCAP Pads are a combination of established 3M adhesive technology with state-of-the-art conductive technology.
The PSA matrix is filled with conductive fillers which allow interconnection between substrates through the adhesive
thickness (the “Z-axis”), and also helps provide electrical conductivity and EMI shielding in the plane of the adhesive
(“X-Y Axis”). 3M eCAPs are ideal for EMI/RFI shield and EMI/RFI gasket to metal surfaces and also electrical
bonding and grounding. 3M eCAP Pads can be applied as die cut parts or in roll form and offers excellent cutting
properties in various converting process.
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3M
™
XYZ-Axis Electrically Conductive Acrylic eCAP Pads 7830N
Electrically conductive fillers
distributed in z and x,y-axis
(Left) and exposed on the
adhesive surface(Right) of
3M™ XYZ-Axis Electrically
Conductive Acrylic Pads
(eCAP)
Physical Properties
Note:
The following technical information and data should be considered representative or typical only and should not be
used for specification purposes.
3M™ XYZ-Axis Electrically Conductive Acrylic eCAP Pads 7830N, a conductive gasket line with single-sided adhesion,
consists of a high performance 3M acrylic adhesive loaded with conductive fillers and a conductive fabric laminate.
3M eCAP 7830N is the best choice for gasket in 0.1 ~ 0.45 mm gap in electronic components and devices.
Product Description of 3M eCAP 7830N
Conductive Fabric
Conductive Filler
Acrylic Adhesive
Conductive Fabric
Color
Woven Material
Pleated Material
Thickness
Dark Grey
PET Woven Fabric
Copper - Nickel
0.05 mm
Conductive Acrylic Adhesive
Color
Conductive Filler
Adhesive
Black
Nickel-Coated Graphite Fiber
Acrylic Pressure-Sensitive Adhesive
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3M
™
XYZ-Axis Electrically Conductive Acrylic eCAP Pads 7830N
Typical Properties
Note:
The following technical information and data should be considered representative or typical only and should not be
used for specification purposes.
Product Number
Pad Thickness
180° Peel Adhesive
Surface Resistance on Fabric Surface
Z-axis Resistance
Compression Deflection
1
Compression Set
2
1
3M™ Electrically Conductive Acrylic eCAP Pads 7830N
0.2, 0.3, 0.4, 0.5 mm
700 ~ 100 gf / inch
10
Ω
/
0.5
Ω
15 kg/in
2
14%
Test Method
3M TM
3M TM
3M TM
3M TM
3M TM
3M TM
Compression Deflection: Measured at 25% compression (12 mm/min)
2
Compression Set: Compressed 25% for 22 hrs at 70°F, expressed as a percentage of the original thickness, as follows:
Cd = [(t
o
– t
f
) / t
o
x100]
Cd = compression set expressed as a percent of the original thickness
t
o
= original thickness of test specimen
t
f
= final thickness of test specimen
Force Displacement Resistance Curve of 3M™ Electrically Conductive Acrylic eCAP Pads 7830N 0.2 ~ 0.5T:
0.6
45.0
40.0
0.5
35.0
0.4
30.0
25.0
0.3
20.0
0.2
0.2T Resistance
0.3T Resistance
0.4T Resistance
0.5T Resistance
0.2T Force
0.3T Force
0.4T Force
0.5T Force
Z-axis
Resistance
(Ohms)
Force
(Kgf/sqin)
15.0
10.0
5.0
0.0
0.1
0.0
0.00
0.05
0.10
0.15
0.20
0.25
Displacement Compression (mm)
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3M
™
XYZ-Axis Electrically Conductive Acrylic eCAP Pads 7830N
Certification/Recognition
MSDS:
3M has not prepared a MSDS for this product which is not subject to the MSDS requirements of the Occupational
Safety and Health Administration’s Hazard Communication Standard, 29 C.F.R. 1910.1200(b)(6)(v). When used under
reasonable conditions or in accordance with the 3M directions for use, the product should not present a health and safety
hazard. However, use or processing of the product in a manner not in accordance with the directions for use may affect its
performance and present potential health and safety hazards.
TSCA:
This product is defined as an article under the Toxic Substances Control Act and therefore, it is exempt from
inventory listing requirements.
RoHs Complaint/REACH Compliant:
This product complies with the European Union’s “Restriction of Hazardous
Substances” (RoHs) initiative and with European REACH regulations 2002/95/EC and 2005/618/EC.
For Additional Information
To request additional product information or to arrange for sales assistance, call toll free 1-800-251-8634. Address
correspondence to: 3M, Electronics Markets Materials Division, 3M Center, Building 225-3S-06, St. Paul, MN 55144-
1000. Our fax number is 651-778-4244 or 1-877-369-2923. In Canada, phone: 1-800-364-3577. In Puerto Rico, phone:
1-787-750-3000. In Mexico, phone: 52-70-04-00.
Important Notice
All statements, technical information, and recommendations related to 3M’s products are based on information believed
to be reliable, but the accuracy or completeness is not guaranteed. Before using this product, you must evaluate it and
determine if it is suitable for your intended application. You assume all risks and liability associated with such use.
Any statements related to the product which are not contained in 3M’s current publications, or any contrary statements
contained on your purchase order shall have no force or effect unless expressly agreed upon, in writing, by an authorized
officer of 3M.
Warranty; Limited Remedy; Limited Liability.
This product will be free from defects in material and manufacture at the time of purchase.
3M MAKES NO OTHER
WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE.
If this product is defective within the warranty period stated above,
your exclusive remedy shall be, at 3M’s option, to replace or repair the 3M product or refund the purchase price of the 3M
product.
Except where prohibited by law, 3M will not be liable for any indirect, special, incidental or consequential
loss or damage arising from this 3M product, regardless of the legal theory asserted.
3
Electronics Markets Materials Division
3M Center, Building 225-3S-06
St. Paul, MN 55144-1000
1-800-251-8634 phone
651-778-4244 fax
www.3M.com/electronics
3M is a trademark of 3M Company.
Please recycle. Printed in U.S.A.
© 3M 2011. All rights reserved.
60-5002-0502-0
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