Gap Pad VO Ultra Soft
®
Ultra Conformable,Thermally Conductive Material for Filling Air Gaps
Features and Benefits
• Thermal conductivity: 1.0 W/m-K
• Highly conformable, low hardness
• “Gel-like” modulus
• Decreased strain
• Puncture, shear and tear resistant
• Electrically isolating
TYPICAL PROPERTIES OF GAP PAD VO ULTRA SOFT
PROPERTY
Color
Reinforcement Carrier
Thickness (inch) / (mm)
Inherent Surface Tack (1 sided)
Density (Bulk Rubber) (g/cc)
Heat Capacity (J/g-K)
Hardness (Bulk Rubber) (Shore 00) (1)
Young's Modulus (psi) / (kPa) (2)
Continuous Use Temp (°F) / (°C)
ELECTRICAL
Dielectric Breakdown Voltage (Vac)
Dielectric Constant (1000 Hz)
Volume Resistivity (Ohm-meter)
Flame Rating
THERMAL
Thermal Conductivity (W/m-K)
THERMAL PERFORMANCE vs. STRAIN
IMPERIAL VALUE
Mauve/Pink
Fiberglass
0.020 to 0.250
1
1.6
1.0
5
8
-76 to 392
6000
5.5
10
11
METRIC VALUE
Mauve/Pink
Fiberglass
0.508 to 6.350
1
1.6
1.0
5
55
-60 to 200
6000
5.5
10
11
TEST METHOD
Visual
—
ASTM D374
—
ASTM D792
ASTM E1269
ASTM D2240
ASTM D575
—
ASTM D149
ASTM D150
ASTM D257
U.L. 94
ASTM D5470
V-0
1.0
V-0
1.0
10
1.97
Gap Pad VO Ultra Soft is recommended for
applications that require a minimum amount
of pressure on components.The viscoelastic
nature of the material also gives excellent
low-stress vibration dampening and shock
absorbing characteristics. Gap Pad VO Ultra
Soft is an electrically isolating material, which
allows its use in applications requiring
isolation between heat sinks and high-voltage,
bare-leaded devices.
Note: Resultant thickness is defined as the final gap
thickness of the application.
Thickness vs. Thermal Resistance
Gap Pad VO Ultra Soft
Resultant Thickness (mils)
Deflection (% strain)
Thermal Impedance (°C-in
2
/W) 0.040" (3)
20
1.87
30
1.68
1) Thir ty 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 sur-
face roughness, flatness and pressure applied.
Typical Applications Include:
• Telecommunications
• Computer and peripherals
• Power conversion
• Between heat-generating semiconductors or magnetic components and a heat sink
• Area where heat needs to be transferred to a frame, chassis, or other type of heat spreader
250
200
150
100
50
0
1
2
3 4 5 6 7 8 9
Thermal Resistance (C-in
2
/W)
10
Configurations Available:
• Sheet form and die-cut parts
Building a Part Number
GPVOUS
–
0.100
– AC – 0816 –
NA
Standard Options
Section E
NA = Selected standard option. If not selecting a standard
option, insert company name, drawing number, and
revision level.
0816 = Standard sheet size 8" x 16", or
00 = custom configuration
AC = Adhesive on Sil-Pad
®
side, natural tack on one side
01 = No pressure sensitive adhesive, natural tack on one side
Standard thicknesses available: 0.020", 0.040", 0.060",
0.080", 0.100", 0.125", 0.160", 0.200", 0.250"
GPVOUS = Gap Pad VO Ultra Soft Material
Section A
Section B
Section C
Note: To build a part number, visit our website at www.bergquistcompany.com.
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
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
for its intended use, and the user assumes all risks and liability whatsoever in connection therewith. NEITHER SELLER NOR
MANUFACTURER SHALL BE LIABLE EITHER IN TORT OR IN CONTRACT FOR ANY LOSS OR DAMAGE, DIRECT,
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_VOUltraSoft_0711
Section D
