1
LAMINATES & GROUNDING PRODUCTS
CHO-FOIL
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
CHO-FOIL EMI Shielding Tape
with Conductive Adhesive
(Copper, Aluminum or Tinned Copper)
Chomerics’ CHO-FOIL tapes are
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
®
and CHO-FAB EMI Shielding Tapes
Typical Applications for CHO-FOIL
& CHO-FAB
TM
US Headquarters TEL +(1) 781-935-4850 FAX +(1) 781-933-4318 • www.chomerics.com
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.
Shielding Tapes
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
South America TEL +(55) 11 3917 1099 FAX +(55) 11 3917 0817
Asia Pacific TEL +(852) 2 428 8008 FAX +(852) 2 423 8253
Europe TEL +(44) 1628 404000 FAX +(44) 1628 404090
CHO-FAB EMI Shielding
Fabric Tape with
Conductive Adhesive
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, and reliability
data appears in Table 4 on page 148.
Ordering Procedure
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.
* Recognized Under the Component
Program of Underwriters Laboratories, Inc.
CHO-FAB tape is a corrosion
Refer to Tables 2 and 3. All CHO-
