SPA-SP035 Thermal Conductive Insulation Sheet | 3.5W/m·K Boron Nitride | TOUSEN

SPA-SP035
The ​SPA-SP035 Thermal Conductive Insulation Sheet​ represents an advanced ​electrical insulation material​ engineered for applications requiring simultaneous thermal management and electrical isolation. This innovative ​boron nitride filled silicone​ composite achieves an optimal balance of 3.5W/(m·K) thermal conductivity and reliable dielectric properties, making it ideal for modern electronic designs. The ​SPA-SP035 insulation sheet​ features an ultra-thin profile (0.25-0.50mm) with exceptional flexibility and mechanical strength, allowing for easy integration into compact spaces while maintaining structural integrity. With its high breakdown voltage (>4kV) and volume resistivity (>10¹⁴ ohm-cm), this ​thermal conductive insulation sheet​ provides essential protection in high-voltage environments while efficiently transferring heat away from critical components.
Performance Advantages and Application Scenarios
The ​SPA-SP035 thermal conductive insulation sheet​ demonstrates remarkable performance across various demanding applications, particularly in battery packaging systems and high-power electrical equipment. Its low thermal impedance (0.21-0.40°C·in²/W @50psi) ensures efficient heat dissipation from battery cells and power modules, significantly enhancing thermal management in electric vehicle battery packs and energy storage systems. This ​electrical insulation material​ maintains stable performance across a wide temperature range from -60°C to 200°C, with UL 94 V-0 flame rating certification for enhanced safety in high-power applications. The ​boron nitride filled silicone​ formulation offers excellent dielectric properties with a dielectric constant below 4.50, making the ​SPA-SP035 insulation sheet​ particularly suitable for high-frequency communication equipment and high-voltage power supplies. Available with optional adhesive backing and custom die-cut configurations, this ​thermal conductive insulation sheet​ can be tailored to specific design requireme
Quantity:
Free Sample
Product Description
 
The SPA-SP035 Thermal Conductivity Insulation Films are renowned for their distinctive characteristics, which include:  
3.5W/(m·K) High thermal conductivity.  
Low thermal resistance.  
High breakdown voltage.  
High mechanical strength.  

 

【Applications】

Battery Packing 
High Power Supply
High Voltage 
Communication
 
Properties
 
Characteristic Parameter SPA-SP035
Test Items
UnitDataTest Method
Reinforcement Carrier
-
Fiberglass
-
Color
-
White
Visual
Thermal Conductivity
W/(m·K)
3.5
ASTM D5470
Thickness
mm
0.25
0.38
0.50
ASTM D374
Thermal Impedance@50psi
℃*in2/W
0.21
0.28
0.40
ASTM D5470
Hardness
Shore A
90±5
ASTM D2240
Dielectric Constant
1MHz-28GHz
<4.50
ASTM D150
Dielectric Constant
kV
>4
ASTM D149
Volume Resistivity
ohm-cm
>1014
ASTM D257
Tensile Strength
MPa
6
ASTM D412
Temperature Range
-60~200
-
Flame Rating
-
V-0
UL 94
RoHS / HF / REACH Compliant
-
YES
-

【Product Specifications】

  According to Customers’Requirements
 

【Storage & Transportation】

  Store in a well-ventilated, cool, and dry place, away from open flames.
  This product is non-toxic and should be stored and transported as a non-hazardous material.
 

【Packaging】

  Customized packaging according to customer requirements.
 

【Shelf Life】

 24 months