Tgard™ 500
Thermally Conductive Insulators
FEATURES AND BENEFITS
• High breakdown voltage of > 6,000 volts AC
• Thermal resistance of 0.48º C-in2/watt at 50 psi
• Thermal resistance of 0.28º C-in2/watt at 400 psi
• Thick enough to encapsulate burrs of stamped
heatskinks
THICKER THERMAL INSULATOR PAD PREVENTS ELECTRICAL SHORTS
IN AUTOMOTIVE ELECTRONICS APPLICATIONS
Tgard™ 500 is a medium thermal performance insulator pad consisting of a ceramic filled high
temperature silcone rubber coated on electrical grade fiberglass.
Tgard 500 is designed for applications that require tadditiional thickenss to prevent electrical shrots
form stamped aluminumheatskinks used in switching mode power supplies (SMPS) and debris
from aluminum castings used in automotive motor controls.
Americas: +1.847 839.6907
IAS-AmericasEastSales@lairdtech.com
Europe: +44.1628.858941
IAS-EUSales@lairdtech.com
Asia: ++86.21.5855.0827.127
IAS-AsiaSales@lairdtech.com
CLV-customerservice@lairdtech.com
www.lairdtech.com/thermal
APPLICATIONS
• Automotive motor controls
• Switching mode power supplies
- stamped aluminum heatsinks
gard-500_07_31_14
Any information furnished by Laird and its agents is believed to be accurate and reliable. All specifications are subject to change without notice. Responsibility for the use and
application of Laird materials rests with the end user, since Laird and its agents cannot be aware of all potential uses. Laird makes no warranties as to the fitness,
merchantability or suitability of any Laird materials or products for any specific or general uses. Laird, Inc or any of its affiliates or agents shall not be liable for incidental or
consequential damages of any kind. All Laird products are sold pursuant to the Laird Terms and Conditions of sale in effect from time to time, a copy of which will be furnished
upon request. © Copyright 2014 Laird, Inc. All Rights Reserved. Laird, the Laird Logo, and other marks are trademarks or registered trademarks of Laird, Inc. or an affiliate
company thereof. Other product or service names may be the property of third parties. Nothing herein provides a license under any Laird or any third party intellectual
property rights. Document A 15173-00 Rev C 07_31_2014
Tgard™ 500
Thermally Conductive Insulators
PRESSURE UNITS 10
25
50
100
200
400
TOTAL THERMAL RESISTANCE
ºC-in2 0.81 0.70 0.48 0.33 0.30 0.28
ºC-cm2 5.16 4.52 3.21 2.13 1.94 1.80
T0-220 1.29 1.01 0.95 0.79 0.77 0.76
Standard thickness: 9 mils (0.229 mm)
• Sheet form, roll form and die-cut parts
• Without adhesive (A0): 12 x 18” sheets, 12” x 65M,
• With adhesive (A1): 11.75 x 18” sheets, 11.75” x 30M roll
PROPERTIES TEST METHOD METRIC VALUES IMPERIAL VALUES
ELECTRICAL PROPERTIES
Dielectric with standard voltage
50mm probe for 30 sec ASTM D149 4,500 volts AC 4,500 volts AC
Dielectric breakdown voltage
50mm probe ASTM D149 Avg >6,000
volts AC
Avg >6,000
volts AC
ASTN D257 1012 ohm-cm 1012 ohm-in
Dielectric constant @1Mhz ASTN D257 3.3 3.3
UL746D 150ºC 302ºF
MECHANICAL PROPERTIES
Thickness 0.23 mm 0.009 in
Hardness ASTM D2240 80 Shore A 80 Shore A
Tensile strength ASTM D412 11.7 Mpa 1.7 Kpsi
ASTM D412 20% 20%
ASTM D412 5% 5%
-60º to 180ºC -76º to 356ºF
Color Brown Brown
UL 94 V-0 V-0
Mouser Electronics
Authorized Distributor
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