Thermal Interface Selection Guide - Bergquist Company - #59

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Text version of the page
Sil-Pad AI500
Electrically Insulating,Thermally Conductive Elastomeric Material
TYPICAL PROPERTIES OF SIL-PAD AI500
PROPERTY
IMPERIAL VALUE
METRIC VALUE
TEST METHOD
Color
Green
Green
Visual
Reinforcement Carrier
Fiberglass
Fiberglass
Thickness (inch) / (mm)
0.010
0.254
ASTM D374
Hardness (Shore A)
80
80
ASTM D2240
Breaking Strength (lbs/inch) / (kN/m)
65
12
ASTM DI458
Elongation (% - 45° to Warp and Fill)
40
40
ASTM D4I2
Continuous Use Temp (°F) / (°C)
-76 to 356
-60 to 180
ELECTRICAL
Dielectric Breakdown Voltage (Vac)
6000
6000
ASTM DI49
Dielectric Constant (1000 Hz)
7.0
7.0
ASTM DI50
Volume Resistivity (Ohm-meter)
I011
I011
ASTM D257
Flame Rating
V-O
V-O
U.L. 94
THERMAL
Thermal Conductivity (W/m-K)
2.0
2.0
ASTM D5470
THERMAL PERFORMANCE vs PRESSURE
Pressure (psi)
10
25 50
100 200
TO-220 Thermal Performance (°C/W)
3.03
2.62 2.21
1.92 1.78
Thermal Impedance (°C-in2/W) (I)
0.59
0.50 0.42
0.34 0.31
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.
Features and Benefits
• Thermal impedance: 0.42°C-in2/W (@50 psi)
• Elastomeric compound coated on both sides
Bergquist Sil-Pad AI500 is a silicone-based, thermally conductive and electrically insulating material. It consists of a cured silicone elastomeric compound coated on both sides of a fiberglass reinforcement layer.
Sil-Pad AI500 performs well under clamping pressure up to 200 psi and is an excellent choice for high performance applications requiring electrical isolation and cut-through resistance.
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
I
-o
A
O
Building a Part Number
Standard Options
H example
SPAI500
NA
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: 0.010" SPAI500 = Sil-Pad AI500 Material
<
C
0
cu SI
0 Si
0
cu SI
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
BEDDQUI5T
*■ COMPANY-^
59

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