ND3500 - T025 TDS Ultra - High Thermal Conductivity Silicone Film

Category:Ultra-high thermal conductivity silicone sheet

The ND3500-T025SW is a thermal conductive and insulating sheet product made of thermal conductive silicone rubber with glass fiber as the reinforcing base material. It has both thermal conductivity and high withstand voltage insulation performance. It is mainly applied between the heat-generating semiconductor devices and the heat dissipation substrate, playing the roles of heat conduction and insulation. The surface is flat and smooth, and it has good adhesion performance on the surfaces of various metallic and ceramic devices. Its high thermal conductivity allows it to achieve low interfacial thermal resistance performance under relatively low pressure, enabling efficient heat dissipation of the heat-generating components.
  • Details

Product Features:

  • Excellent thermal conductivity, low thermal resistance, and stable performance, ensuring reliable use over an extended period;

  • Bridging the manufacturing tolerances in the structure, reducing the requirements for the manufacturing tolerances of heat sinks and heat dissipation structural components;

  • It has a certain degree of flexibility and excellent insulation properties;

  • The surface is flat and smooth, and it has good adhesion performance on the surfaces of various metallic and ceramic devices; It offers the convenience of being reusable.  



Storage and Packaging Specifications:

  • In order to ensure that the product maintains good quality, it should be stored in a dry environment at a room temperature of 25°C. During the storage period, the environment should be kept clean and free of dust to prevent external contamination from affecting the electrical characteristics.

  • Packaging Specifications: Sheet packaging; 400mm * 200mm (with thicknesses of 0.25mm and 0.38mm), and it can be customized according to customers' requirements. 


Application methods:

  • It can be used in the following ways: automatic pasting and manual pasting.



Application areas:

  • Between the aluminum base plate and the heat sink;

  • For heat conduction between MOS transistors, transformers (or capacitors/PFC inductors) and the heat sink or the casing;

  • For heat conduction and dissipation between the motherboard ICs and the heat sink or the casing;

  • Applications in the automotive electronics industry (such as xenon lamp ballasts, audio systems, in-vehicle series products, etc.);

  • Between the power amplifier ICs, image decoder ICs and the heat sinks (casings);

  • In microwave ovens/air conditioners (between the power ICs of the fan motors and the casings)/induction cookers (between the thermistors and the heat sinks). 


Technical parameters:

Physical properties listUnitValueTest standard
Reinforced substrate——
Glass fiberN/A
Color——
WhiteVision
Thermal conductivity coefficientW/m·K3.5ASTM D5470
Thicknessmm0.25、0.38ASTM D374
Specific gravityg/cm32.8±0.2ASTM D792
HardnessShore A80±10ASTMD2240
Breakdown voltagekV(AC)≧5ASTM D149
Volume resistivityΩ·cm≧1×1011ASTM D257
Tensile strengthMPa≧5ASTM D412
Thermal resistance@50psi(°C·in2/W)0.27ASTM D5470
Flame retardant grade——V-0UL94
Operating temperature-40~200N/A
Environmental requirementsThis product complies with the control standards of RoHS 2.0, Halogen, and REACH.