GPVOS-0.040-00-0816 - Bergquist Company

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_VOSoft_0711

Gap Pad

VO Soft

Highly Conformable,Thermally Conductive Material for Filling Air Gaps

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

• Thermal conductivity: 0.8 W/m-K

• Conformable, low hardness

• Enhanced puncture, shear and tear resistance

• Electrically isolating

Gap Pad VO Soft is recommended for

applications that require a minimum amount

of pressure on components. Gap Pad VO

Soft is a highly conformable, low-modulus,

filled-silicone polymer on a rubber-coated

fiberglass carrier. The material can be used

as an interface where one side is in contact

with a leaded device.

Note: Resultant thickness is defined as the final gap

thickness of the application.

1 2 3 4 8 7 6 5 9 10

200

180

160

140

120

100

Thickness vs. Thermal Resistance

Gap Pad VO Soft

Thermal Resistance (C-in2/W)

Resultant Thickness (mils)

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

Configurations Available:

• Sheet form and die-cut parts

Building a Part Number Standard Options

Section A

Section B

Section C

Section D

Section E

NA = Selected standard option. If not selecting a standard

option, insert company name, drawing number, and

revision level.

GPVOS = Gap Pad VO Soft Material

GPVOS 0.060 AC 00 ACME10256 Rev. a

Note: To build a part number, visit our website at www.bergquistcompany.com.

Standard thicknesses available: 0.020", 0.040", 0.060",

0.080", 0.100", 0.125", 0.160", 0.200"

AC = Adhesive on Sil-Pad® side, natural tack on one side

01 = No pressure sensitive adhesive, natural tack on one side

0816 = Standard sheet size 8" x 16", or

00 = custom configuration

– – – –

TYPICAL PROPERTIES OF GAP PAD VO SOFT

PROPERTY IMPERIAL VALUE METRIC VALUE TEST METHOD

Color Mauve/Pink Mauve/Pink Visual

Reinforcement Carrier Sil-Pad Sil-Pad —

Thickness (inch) / (mm) 0.020 to 0.200 0.508 to 5.080 ASTM D374

Inherent Surface Tack (1 side) 1 1 —

Density (Bulk Rubber) (g/cc) 1.6 1.6 ASTM D792

Heat Capacity (J/g-K) 1.0 1.0 ASTM E1269

Hardness (Bulk Rubber) (Shore 00) (1) 25 25 ASTM D2240

Young's Modulus (psi) / (kPa) (2) 40 275 ASTM D575

Continuous Use Temp (°F) / (°C) -76 to 392 -60 to 200 —

ELECTRICAL

Dielectric Breakdown Voltage (Vac) >6000 >6000 ASTM D149

Dielectric Constant (1000 Hz) 5.5 5.5 ASTM D150

Volume Resistivity (Ohm-meter) 1011 1011 ASTM D257

Flame Rating V-O V-O U.L. 94

THERMAL

Thermal Conductivity (W/m-K) 0.8 0.8 ASTM D5470

THERMAL PERFORMANCE vs. STRAIN

Deflection (% strain) 10 20 30

Thermal Impedance (°C-in2/W) 0.040" (3) 2.48 2.29 2.11

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 inch2. 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.