All statements, technical information and recommendations herein are based on tests we believe to be reliable, and
THE FOLLOWING IS MADE IN LIEU OF ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING THE IMPLIED
WARRANTIES OF MARKETABILITY AND FITNESS FOR PURPOSE. Sellers’ and manufacturers’ only obligation shall be to
replace such quantity of the product proved to be defective. Before using, user shall determine the suitability of the product
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INCIDENTAL, OR CONSEQUENTIAL, INCLUDING LOSS OF PROFITS OR REVENUE ARISING OUT OF THE USE OR
THE INABILITY TO USE A PRODUCT. No statement, purchase order or recommendations by seller or purchaser not
contained herein shall have any force or effect unless in an agreement signed by the officers of the seller and manufacturer.
PDS_GP_5000S35_0711
Gap Pad
®
5000S35
High thermal conductivity plus “S-Class” softness and conformability
www.bergquistcompany.com
The Bergquist Company -
North American Headquarters
18930 West 78th Street
Chanhassen, MN 55317
Phone: 800-347-4572
Fax: 952-835-0430
The Bergquist Company -
European Headquarters
Netherlands
Phone: 31-35-5380684
Fax: 31-35-5380295
The Bergquist Company -
Asia Headquarters
Hong Kong
Phone: 852-2690-9296
Fax: 852-2690-2344
Features and Benefits
• High thermal conductivity: 5 W/m-K
• Highly conformable,“S-Class” softness
• Natural inherent tack reduces interfacial
thermal resistance
• Conforms to demanding contours and
maintains structural integrity with little or
no stress applied to fragile component leads
• Fiberglass reinforced for puncture, shear
and tear resistance
• Excellent thermal performance at
low pressures
Gap Pad 5000S35 is a fiberglass-reinforced
filler and polymer featuring a high thermal
conductivity. The material yields extremely soft
characteristics while maintaining elasticity and
conformability.The fiberglass reinforcement
provides easy handling and converting, added
electrical isolation and tear resistance.The
inherent natural tack on both sides assists in
application and allows the product to effec-
tively fill air gaps, enhancing the overall thermal
performance.The top side has reduced tack
for ease of handling. Gap Pad 5000S35 is ideal
for high-performance applications at low
mounting pressures.
Typical Applications
• CDROM / DVD ROM
• Voltage Regulator Modules ( VRMs) and POLs
• Thermally-enhanced BGAs
Configurations Available:
• Die-cut parts are available in any shape or size, separated or in sheet form
Building a Part Number Standard Options
• Memory packages / modules
• PC Board to chassis
• ASICs and DSPs
Note: Resultant thickness is defined as the final gap thickness of
the application.
TYPICAL PROPERTIES OF GAP PAD 5000S35
PROPERTY IMPERIAL VALUE METRIC VALUE TEST METHOD
Color Light Green Light Green Visual
Reinforcement Carrier Fiberglass Fiberglass —
Thickness (inch) / (mm) 0.020 to 0.125 0.508 to 3.175 ASTM D374
Inherent Surface Tack (1 side) 2 2 —
Density (Bulk Rubber) (g/cc) 3.6 3.6 ASTM D792
Heat Capacity (J/g-K) 1.0 1.0 ASTM E1269
Hardness (Bulk Rubber) (Shore 00) (1) 35 35 ASTM D2240
Young's Modulus (psi) / (kPa) (2) 17.5 121 ASTM D575
Continuous Use Temp (°F) / (°C) -76 to 392 -60 to 200 —
ELECTRICAL
Dielectric Breakdown Voltage (Vac) >5000 >5000 ASTM D149
Dielectric Constant (1000 Hz) 7.5 7.5 ASTM D150
Volume Resistivity (Ohm-meter) 10
9
10
9
ASTM D257
Flame Rating V-O V-O U.L. 94
THERMAL
Thermal Conductivity (W/m-K) 5.0 5.0 ASTM D5470
THERMAL PERFORMANCE vs. STRAIN
Deflection (% strain) 10 20 30
Thermal Impedance (°C-in
2
/W) 0.040" (3) 0.41 0.34 0.30
1) Thirty second delay value Shore 00 hardness scale. 2)Young’s Modulus, calculated using 0.01 in/min. step rate of strain
with a sample size of 0.79 inch
2
. 3) The ASTM D5470 test fixture was used.The recorded value includes interfacial ther-
mal resistance. These values are provided for reference only. Actual application performance is directly related to the
surface roughness, flatness and pressure applied.
