Tgardâ„¢ 500 – A1 – 0.23mm | LairdCustom pads and gaskets priced instantly and made to order within 24 hours!

Tgardâ„¢ 500 – A1 – 0.23mm | Laird

Thermally Conductive Silicone Insulators | A15397-04

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  • High breakdown voltage of > 6,000 volts AC
  • Thermal resistance of 0.45º C-in2/watt at 50 psi
  • Thermal resistance of 0.35º C-in2/watt at 400 psi

 

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Description

THICKER THERMAL INSULATOR PAD PREVENTS ELECTRICAL SHORTS IN AUTOMOTIVE ELECTRONICS APPLICATIONS

Tgardâ„¢ 500 is a medium thermal performance insulator pad consisting of a ceramic-filled high-temperature silicone rubber coated on electrical grade fiberglass.

Tgard 500 is designed for applications that require additional thickness to prevent electrical shorts from stamped aluminum heatsinks used in switching mode power supplies (SMPS) and debris from aluminum castings used in automotive motor controls.

A1 = Adhesive on One Side

A15397-04

 

Benefits

  • Thick enough to encapsulate burrs of stamped heatsinks
  • Preventselectrical shorts from stamped aluminum

Features

  • High dielectric strength of >6,000 volts AC
  • Thermal resistance of 0.45ºC-in2 /watt at 50 psi
  • Thermal resistance of 0.35ºC-in2 /watt at 400 psi

Recommended Uses

  • Automotive motor controls
  • Switching mode power supplies - Stamped aluminum heatsinks
Electrical Properties

 

Properties Test Method Metric Values Imperial Values
Dielectric with stand voltage ASTM D149 4,500 volts AC 4,500 volts AC
Dielectric Breakdown voltage ASTM D149 >6,000 volts AC >6,000 volts AC
Volume Resistivity ASTM D257 >10/12 ohm-cm >10/12 ohm-in
Dielectric Constant @ 1 MHz ASTM D257 3.3 3.3
Electrical RTI Temperature rating UL 746D 150ºC 302ºF
Total Thermal Resistance

 

Pressure, psi (kPa) Units 10 (69) 25 (172) 50 (345) 100 (689) 200 (1379) 400 (2758)
Modified ASTM D5470 ºC-in²
/watt		 0.6 0.55 0.45 0.40 0.35 0.35
Modified ASTM D5470 ºC-in²
/watt		 3.9 3.2 2.9 2.6 2.3 2.3
TO-220 ºC/watt 2.9 2.6 2.4 2.2 2.0 2.0
Mechanical Properties

 

Properties Test Method Metric Values Imperial Values
Thickness 0.23 mm 0.009 inch
Hardness ASTM D2240 85 Shore A 85 Shore A
Tensile Strength ASTM D412 1.3 kpsi 9 mPa
Elongation @45º to Warp/Fill ASTM D412 20% 20%
Elongation along width or length ASTM D412 5% 5%
Mechanical RTI Temperature rating UL 746D 150ºC 302ºF
Color Dark Pink Dark Pink
UL Flammability Rating UL 94 V-0 V-0

Laird Tgardâ„¢ 500 Datasheet





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