ElectroLinxx - EMC products and electro-technical components

Thermal Interface Material

STP-50 is our standard thermal interface material grade. Thermal Conductivity
of 5.0W/mK.

The material is made of flexible silicone pad filled with Aluminum particles.
It has been designed for the best combination of thermal conductivity,
compressibility and self adhesiveness to achieve the best thermal transfer and
heat dissipation performance.

  • Excellent thermal conductivity
  • Very flexible.
  • Provides appropriate electric insulation.
  • Good compressibility. The material fills air gaps between heat sinks and
    heat emitting components on p.c.boards.
  • Excellent workability based on appropriate hardness and self-tackiness
  • Available in custom sizes and die-cut requirement
  • Less outgassing of low molecular siloxane
  • Variation in surface treatment: double sides tackiness, one side tackiness,
    with reignforcement.

1. Replacement for messy grease

2. Between heat dissipater and CPU/semiconductor or any heat emitting

3. Power supply

4. High speed mass storage device

5. Various automotive electronics

6. LED lighting

Supply Size

Standard Supply Size:

(1) sheet : length x width : 210mm x 300mm (A4 size)

(2) roll : 210mm x 100meter

Custom Size

Custom Size

thermal pad

Please specify L and W .

Thickness "T" can be designated within the range of 0.3mm
to 25mm.

Part Number System

STP-50|Part Number System


width (mm)

sheet thickness (unit: 0.1mm)

Grade Index (STP50 for thermal conductivity
of 5.0W/mK)

No. Part Description thickness (mm) Sheet Width (mm) Sheet Length (mm)
1 STP50-003210300 0.3 210 300
2 STP50-010210300 1.0 210 300
3 STP50-100210300 10.0 210 300
Product Structure
Product Structure

Polyester release film
Alumina-impregnated silicone, self-tacky
Polyeser release film

Technical Data
Specifications STP-15 STP-30 STP-50 STP-70 TEST METHOD
Thickness(mm) 0.3 to 25.0 ASTM D374
Color Dark gray/Gray/Light gray/Ivory/Yellow  
Specific Gravity 2.5 3 3.1 3.2 ASTM D792
Hardness (shore00) 45±10 60±10 60±10 60±10 ASTM D2240
Dielectric Breakdown (KV AC) 10 6 5 6 ASTM D149
Dielectric Constant (1KHz) 5.5 ASTM D150
Volume Resistivity (Ω-cm) 1.6 x 10^14 ASTM D257
Operation temp.(°C) -60 to 200  
Flame rating UL94V-0  
Fiber glass reinforcement option Yes Yes  
Thermal Conductivity (W/m•K) 1.5 3 5 7 ASTM D5470