www.bergquistcompany.com
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 manufacturer s’ 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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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_SP_1100ST_12.08
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
Bramenber g 9a, 3755 BT Eemnes
Netherlands
Phone: 31-35-5380684
Fax: 31-35-5380295
The Bergquist Company - Asia
Room 15,8/F W ah Wai Industrial Centre
No.38-40,Au Pui Wan Street
Fotan, Shatin, N.T. Hong Kong
Ph: 852.2690.9296
Fax: 852.2690.2344
Sil-Pad
®
1100ST
Affordable , Electr ically Insulating,Ther mally Conductive,Soft Tack Elastomer ic Material
Features and Benefits
• Inherent tack on both sides for exceptional
ther mal performance and easy placement
• Re-positionable for higher utilization,ease of
use and assembly error reduction
• Lined on both sides for ease of handling
pr ior to placement in high volume
assemblies
• Exhibits exceptional thermal perfor mance
even at a low mounting pressure
• Fiber glass reinforced
• Value alter native to Sil-Pad 1500ST
Sil-Pad 1100ST (Soft Tack) is a fiberglass-
reinforced thermal interface mater ial featur ing
inherent tack on both sides.The mater ial
exhibits excellent ther mal performance at
low mounting pressures.The material is sup-
plied on two liners for exceptionally easy
handling prior to auto-placement in high-vol-
ume assemblies.The material is ideal for
placement between an electronic power
device and its heat sink.
Typical Applications Include:
• Automotive ECMs • Motor controls
• Power supplies • Between an electronic power device and its heat sink
Configurations Available:
• Sheet form, die-cut parts and roll for m
• Top and bottom liner s
Building a Part Number Standard Options
Sil-Pad®: U.S. Patents 4,574,879; 4,602,125; 4,602,678; 4,685,987; 4,842,911 and others
TYPICAL PROPERTIES OF SIL-PAD 1100ST
PROPERTY IMPERIAL VALUE METRIC VALUE TEST METHOD
Color Yellow Yellow Visual
Reinforcement Carr ier Fiberglass Fiberglass —
Thickness (inch) / (mm) 0.012 0.305 ASTM D374
Inherent Surface Tack (1or 2 sided) 2 2 —
Hardness (Shore 00) (1) 85 85 ASTM D2240
Breaking Strength (lb/inch) / (kN/m) 2.6 0.5 ASTM D1458
Elongation (% - 45º to Warp and Fill) 16 16 ASTM D412
Tensile Strength (psi) / (MPa) 220 1.5 ASTM D412
Continuous Use Temp (°F) / (°C) -76 to 356 -60 to 180 —
ELECTRICAL
Dielectric Breakdown Voltage (Vac) 5000 5000 ASTM D149
Dielectric Constant (1000 Hz) 5.0 5.0 ASTM D150
Volume Resistivity (Ohm-meter) 1010 1010 ASTM D257
Flame Rating V-O V-O U.L. 94
THERMAL
Thermal Conductivity (W/m-K) 1.1 1.1 ASTM D5470
THERMAL PERFORMANCE VS. PRESSURE
Pressure (psi) 10 25 50 100 200
TO-220 Ther mal Performance (ºC/W) 2.72 2.71 2.68 2.62 2.23
Thermal Impedance (ºC-in2/W)(2) 0.75 0.71 0.66 0.61 0.57
1) Thirty second delay value Shore 00 hardness scale .
2) The ASTM D5470 test fixture was used.The recorded value includes interfacial thermal resistance .These values are provided for
reference only.Actual application perfor mance is directly related to the surface roughness, flatness and pressure applied.
