SIL PAD TSP 900

**Sil-Pad® 400** 

The Original Sil-Pad Material 

## **Features and Benefits** 

- Thermal impedance: 1.13°C-in[2] /W (@50 psi) 

- Original Sil-Pad material 

- Excellent mechanical and physical characteristics 

- Flame retardant 

Sil-Pad 400 is a composite of silicone rubber and fiberglass.The material is flame retardant and is specially formulated for use as a thermally conductive insulator.The primary use for Sil-Pad 400 is to electrically isolate power sources from heat sinks. 

Sil-Pad 400 has excellent mechanical and physical characteristics. Surfaces are pliable and allow complete surface contact with excellent heat dissipation. Sil-Pad 400 actually improves its thermal resistance with age. The reinforcing fiberglass provides excellent cut-through resistance. In addition, Sil-Pad 400 is non-toxic and resists damage from cleaning agents. 

**TYPICAL PROPERTIES OF SIL-PAD 400** PROPERTY IMPERIAL VALUE METRIC VALUE TEST METHOD Color Gray Gray Visual Reinforcement Carrier Fiberglass Fiberglass — Thickness (inch) / (mm) 0.007, 0.009 0.178, 0.229 ASTM D374 ~~—~~ Hardness (Shore A) 85 85 ASTM D2240 ~~a~~ Breaking Strength (lbs/inch) / (kN/m) 30 5 ASTM D1458 ~~es~~ Elongation (%45° to Warp and Fill) 54 ee 54 ASTM D412 Tensile Strength (psi) / (MPa) 3000 ee 20 ASTM D412 Continuous Use Temp (°F) / (°C) -76 to 356 -60 to 180 — ELECTRICAL Dielectric Breakdown Voltage (Vac) 3500, 4500 3500, 4500 ASTM D149 Dielectric Constant (1000 Hz) 5.5 5.5 ASTM D150 ~~a~~ Volume Resistivity (Ohm-meter) 1011 1011 ASTM D257 Flame Rating V-O ee V-O U.L. 94 THERMAL Thermal Conductivity (W/m-K) 0.9 0.9 ASTM D5470 THERMAL PERFORMANCE vs PRESSURE ~~a~~ Pressure (psi) 10 25 50 100 200 ~~a~~ TO-220 Thermal Performance (°C/W) 0.007" 6.62 5.93 5.14 4.38 3.61 ~~a~~ TO-220 Thermal Performance (°C/W) 0.009" 8.51 7.62 6.61 5.63 4.64 Thermal Impedance (°C-in[2] /W) 0.007" (1) 1.82 a 1.42 1.13 0.82 0.54 ~~es~~ Thermal Impedance (°C-in[2] /W) 0.009" (1) 2.34 1.83 1.45 1.05 0.69 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. ~~Oo~~ 

## **Typical Applications Include:** 

- Power supplies 

   - Automotive electronics 

- Power semiconductors 

- Motor controls 

## **Configurations Available:** 

- Sheet form, die-cut parts and roll form; with or without pressure sensitive adhesive 

## **Standard Options** 

## **Building a Part Number** 

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SP400 – 0.007 – AC – 12/250 – NA<br>NA = Selected standard option. If not selecting a standard<br>option, insert company name, drawing number, and<br>revision level.<br>_ _ _ = Standard configuration dash number,<br>1212 = 12" x 12" sheets, 12/250 = 12" x 250' rolls, or<br>00 = custom configuration<br>AC = Adhesive, one side;  AC2 = Adhesive, two sides; or<br>00 = no adhesive<br>Standard thicknesses available:  0.007", 0.009"<br>SP400 = Sil-Pad 400 Material<br>Note:  To build a part number, visit our website at www.bergquistcompany.com.<br>Sil-Pad [®] U.S. Patents 4,574,879; 4,602,125; 4,602,678; 4,685,987; 4,842,911 and others<br>Section A Section B Section C Section D Section E<br>**----- End of picture text -----**<br>


(GERGOUIST) 

## **www.bergquistcompany.com** 

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_400_12.08 

The Bergquist Company - North American Headquarters 18930 West 78th Street Chanhassen, MN 55317 Phone: 800-347-4572 Fax: 952-835-0430