Premium Thermal Insulating Film High Performance Heat Management for PCB

Product Description

Product Description

Thermal Insulating Sheets for MOSFET Applications

MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) are core components in power electronics, operating under high frequencies and power loads. Efficient heat dissipation and electrical insulation are critical to prevent thermal failure and ensure stable isolation. Thermal insulating sheets address these challenges, optimizing MOSFET performance in demanding environments.

Why Thermal Insulating Sheets for MOSFETs?

Traditional solutions (e.g., thermal grease + mica sheets) fall short:
·Thermal grease: Prone to drying, leakage, and messy manual application.
·Mica sheets: Brittle, low thermal conductivity, and poor durability.

Feature	Benefit for MOSFETs
High Thermal Conductivity	Rapidly transfers heat from MOSFET junctions to heat sinks, reducing thermal stress.
Superior Dielectric Strength	Withstands high voltage (e.g., kV-level), preventing electrical breakdown between the MOSFET and metal structures (e.g., heat sinks).
Flexible & Durable	Resists cracking/chipping (unlike mica), and enables easy, clean installation (no manual spreading like grease).

Key Applications

Thermal insulating sheets enable reliable MOSFET operation in critical systems:

1.Power Conversion (AC/DC, DC/DC Converters):Manages heat in compact, high-power designs (e.g., server power supplies, industrial inverters).
2.Electric Vehicles (EVs):Used in on-board chargers (OBC), motor drive inverters, and DC-DC converters, where high voltage and temperature demands require robust insulation and heat management.
3.Renewable Energy (Solar Inverters, Energy Storage):Supports MOSFETs in harsh outdoor conditions, improving efficiency and lifespan.

Specification

Feature	Test Result	Test Standard
Composition	Fiberglass, silicone	***
Normal Thickness	0.22 ± 0.2 mm	ASTM D751
Customized Thickness	0.15~1.0 mm	***
Density	2.2 g/cm³	ASTM D297
Shore Hardness	90 Shore A	ASTM D2240
Tensile Strength	450 psi	ASTM D412
Applicable Temperature	-50~200 °C	***
Breakdown Voltage	>4 kV@AC	ASTM D149
Dielectric Constant	5.5 1MHz	ASTM D150
Volume Resistivity	5.0*10^13 Ω·cm	ASTM D257
Fire Rating	V–0	UL 94
Thermal Conductivity	0.8 W/m·K	ASTM D5470
Thermal Impedance	0.8 °C·in²/W	ASTM D5470
RoHS	PASS	IEC 62321
Halogen	PASS	EN14582
REACH	PASS	EN14372

Performance Impact

By integrating thermal insulating sheets, MOSFET-based systems gain:

1.Higher Efficiency: Reduced thermal resistance lowers power loss.
2.Extended Lifespan: Consistent heat dissipation minimizes thermal cycling damage.
3.Design Flexibility: Thin, flexible form factors enable compact layouts (e.g., stacked modules).

Company Profile

Guangdong Dongsen Zhichuang Technology Co., Ltd.was established in 2019, located in Guangdong Province, China, with a registered capital of 5 million RMB. We operate two R&D Center in China and Japan, along with two production bases in Guangdong Province, China. With over 200 employees boasting 14 years of industry experience in research, development, and production, we specialize in manufacturing and selling thermal conductive materials such as thermal conductive silicone pads, thermal grease, thermal double-sided adhesive tape, thermal potting compound, thermal gel, thermal copper foil, copper foil tape, graphite sheets, and thermal ceramic sheets. Additionally, we offer customized die-cutting services for various products. We have been providing OEM customization services for major global thermal material brands for an extended period. Our clientele includes major players in industries such as new energy vehicles, computers, power supplies, LED lighting, 3C electronics, network communications, electro mechanical equipment, instrumentation, and consumer electronics.

Our factory is certified under ISO9001, ISO14001, and IATF16949 systems, and our products hold authoritative certifications from third-party testing institutions like UL and SGS, ensuring compliance with requirements such as REACH\ROHS. We are globally recognized as a leading provider of thermal management solutions.

We are committed to meeting customer needs by delivering high-quality products and providing fast and flexible services to maximize customer value. Through our dedication, we have established strong partnerships with major new energy vehicle manufacturers, telecommunications companies, leading smartphone brands, and professional equipment manufacturers worldwide, enabling us to serve customers globally.

FAQ

Q: What is the MOQ?
A: Standard MOQ is 200 pcs, but we support trial orders for new partners. 
 
Q: Can I request custom services?
A: Yes! We offer various customized services. 
 
Q: What's the lead time?
A:  7–10 days.  
 
Q: Can I buy samples placing orders?
A: Yes.Please feel free to contact us.
 
Q: Do you support OEM branding?
A: Yes – private labeling and OEM services available.