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A white, curved sheet of thermal interface material with a large, circular cutout in the center. The circular section has several small holes and notches around its edge. The lighting highlights the smooth, matte texture of the TIM against a neutral background.
A blue circle is filled with evenly spaced horizontal black lines, creating a striped pattern reminiscent of LED modules. The lines make the blue color appear as alternating light and dark blue horizontal stripes within the circle against a white background.

N25 – Electrically Insulating Silicone Film

2.5 W/mK Thermally Conductive Electrically Insulating Silicone Film

N25 is a highly thermal conductive white film. It has an well-balanced thermal, electrical and dielectric behavior and a good self-adhesion characteristic. N25 is created by filling a silicone elastomer base with aluminum oxide.

Thal Article Number: N25

Performance Materials: Highly Thermally Conductive Electrically Insulating Silicone Film

N25 – Electrically Insulating Silicone Film - White

N25 is a highly thermally conductive white film known for its well-balanced thermal, electrical, and dielectric properties, along with excellent self-adhesion characteristics. Created by infusing a silicone elastomer base with aluminum oxide, N25 offers exceptional performance. 

For enhanced mechanical strength, fiber glass reinforcement is available. Additionally, this film can be supplied with an optional adhesive coating.

Ordering Example

Our project's success soared with the help of Highly Thermally Conductive Electrically Insulating Silicone Film. It's not just insulation; it's innovation in action!

Specifications

N25 – Electrically Insulating Silicone Film specifications

Properties Unit N25 Test Method
Color
-
White
Visual
Thermal resistance Rth
K/W
0.22
-
Thermal impedance Rti
°Cmm2/W
90
ASTM D5740
Thermal conductivity λ
W/mK
2.5
ASTM D5470
Breakdown voltage Ud;ac
kV
1.5
ASTM D149
Dielectric breakdown Ed;ac
kV/mm
7.0
-
Volume resistivity
Ωm
2.5 x 1011
-
Dielectric loss factor tan δ
2.2 x 10-2
Dielectric constant ɛr
3.0
ASTM D150
Tensile strength
N/mm2
1.5
ASTM D412
Hardness
Shore A
70-80
ASTM D2240
Elongation
%
31
ASTM D412
Standard thicknesses
mm
0.25
-
Flame rating
UL-94
V-0
-
Density
g/cm3
2.33
-
Application temperature
°C
-60 up to +250
-
Highly Thermally Conductive Electrically Insulating Silicone Film

Interested in N25 – Electrically Insulating Silicone Film?

Thal Technologies, located in Almere, has been a pioneer in thermal management and LED lighting solutions for over two decades. Our commitment to innovation and excellence drives us to deliver top-tier thermally conductive and electrically insulating materials across a spectrum of electronics applications.

As industry leaders, we excel at tackling complex challenges in thermal management. Our comprehensive approach encompasses consultation, design, assembly, and manufacturing, ensuring that every solution is not only effective but also seamlessly integrated.

At Thal Technologies, we understand the critical importance of precision and reliability. Our tailored solutions are designed to enhance performance and efficiency, making us the partner of choice for businesses seeking cutting-edge thermal management and lighting solutions.

Request a quote or come visit us in Almere, the Netherlands. The coffee is already brewing! We look forward to discussing how we can assist with your needs.
Marko Widman Thal Technologies
Marko Widman
Office Sales T.I.M.
Frequently Asked Questions

N25 – Electrically Insulating Silicone Film FAQ

Are you exploring N25 Thermal Conductive Film for your next project or ready to integrate it into your design? You likely have questions. Below, we’ve compiled a list of frequently asked questions to help you better understand the unique properties and applications of our N25 film. From technical specifications to customization options, find all the answers you need to make an informed decision. If your question isn’t covered here, please don’t hesitate to contact us directly—we’re here to help!

N25 is a highly thermal conductive white film with well-balanced thermal, electrical, and dielectric behavior. It also features good self-adhesion characteristics, making it ideal for various applications.
Yes, mechanical strength can be enhanced through fiber glass reinforcement, providing additional durability for demanding applications.
Certainly. N25 can be optionally supplied with an additional adhesive coating, offering flexibility to meet specific project requirements.
N25 boasts a thermal resistance of 0.22 K/W, thermal impedance of 2.90 °Cmm2/W, and a thermal conductivity of 2.5 W/mK, ensuring efficient heat dissipation in various thermal management applications.
N25 can withstand temperatures ranging from -60°C up to +250°C, making it suitable for use in extreme environmental conditions.