Sil-Pad 900S
®
High Performance Insulator for Low-Pressure Applications
Features and Benefits
• Thermal impedance:
0.61°C-in
2
/W (@50 psi)
• Electrically isolating
• Low mounting pressures
• Smooth and highly compliant surface
• General-purpose thermal interface
material solution
PROPERTY
Color
Reinforcement Carrier
Thickness (inch) / (mm)
Hardness (Shore A)
Elongation (%45° to Warp and Fill)
Tensile Strength (psi) / (MPa)
Continuous Use Temp (°F) / (°C)
ELECTRICAL
Dielectric Breakdown Voltage (Vac)
Type 3 Electrodes
Dielectric Constant (1000 Hz)
Volume Resistivity (Ohm-meter)
Flame Rating
THERMAL
Thermal Conductivity (W/m-K)
THERMAL PERFORMANCE vs PRESSURE
Pressure (psi)
TO-220 Thermal Performance (°C/W)
Thermal Impedance (°C-in /W) (1)
2
TYPICAL PROPERTIES OF SIL-PAD 900S
IMPERIAL VALUE
Pink
Fiberglass
0.009
92
20
1300
-76 to 356
5500
8300
6.0
10
10
METRIC VALUE
Pink
Fiberglass
0.229
92
20
9
-60 to 180
5500
8300
6.0
10
10
TEST METHOD
Visual
—
ASTM D374
ASTM D2240
ASTM D412
ASTM D412
—
ASTM D149
ASTM D149
ASTM D150
ASTM D257
U.L. 94
ASTM D5470
V-O
1.6
10
3.96
0.95
25
3.41
0.75
V-O
1.6
50
2.90
0.61
100
2.53
0.47
200
2.32
0.41
The true workhorse of the Sil-Pad product
family, Sil-Pad 900S thermally conductive
insulation material, is designed for a wide
variety of applications requiring high thermal
performance and electrical isolation.These
applications also typically have low mounting
pressures for component clamping.
Sil-Pad 900S material combines a smooth
and highly compliant surface characteristic
with high thermal conductivity.These features
optimize the thermal resistance properties at
low pressures.
Applications requiring low component clamp-
ing forces include discrete semiconductors
(TO-220,TO-247 and TO-218) mounted with
spring clips. Spring clips assist with quick
assembly and apply a limited amount of force
to the semiconductor.The smooth surface
texture of Sil-Pad 900S minimizes interfacial
thermal resistance and maximizes thermal
performance.
1) The ASTM D5470 test fixture was used.The recorded value includes interfacial thermal resistance.These values are provided for
reference only. Actual application performance is directly related to the surface roughness, flatness and pressure applied.
Typical Applications Include:
• Power supplies
• Automotive electronics
• Motor controls
• Power semiconductors
Configurations Available:
• Sheet form, die-cut parts and roll form
• With or without pressure sensitive adhesive
Building a Part Number
SP900S
–
0.009
– AC –
00
– ACME 951753 Rev B
Standard Options
Section E
NA = Selected standard option. If not selecting a standard
option, insert company name, drawing number, and
revision level.
_ _ _ = Standard configuration dash number,
1212 = 12" x 12" sheets, 12/250 = 12" x 250' rolls, or
00 = custom configuration
AC = Adhesive, one side
00 = No adhesive
Standard thicknesses available: 0.009"
SP900S = Sil-Pad 900S Material
Section A
Section B
Section C
Note: To build a part number, visit our website at www.bergquistcompany.com.
Sil-Pad
®
: U.S. Patents 4,574,879; 4,602,125; 4,602,678; 4,685,987; 4,842,911 and others
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
Bramenberg 9a, 3755 BT Eemnes
Netherlands
Phone: 31-35-5380684
Fax: 31-35-5380295
The Bergquist Company - Asia
Room 15, 8/F Wah Wai Industrial Centre
No. 38-40, Au Pui Wan Street
Fotan, Shatin, N.T. Hong Kong
Ph: 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_SP_900S_12.08
Section D
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