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KB5120S
KOMPA
Silicone material
0.5mm-5.0mm
2.83±0.05 g/cm3
China
ISO9001, ISO14001, ISO45001, IATF16949, EN45545-2, UL94-V0, NSF61, UL157-2007 Gaskets and Seals. CE, ROHS, PAHS, REACH
Product Description
Thermal pads are used to fill air gaps between heat-generating devices and heat sinks or metal bases. Their flexible and elastic characteristics enable them to cover uneven surfaces. Heat is conducted from discrete devices or the entire PCB to the metal housing or diffusion plate, improving the efficiency and service life of heat-generating electronic components.
Self-adhesive, no additional surface adhesive or backing needed, with good elasticity and recovery to adapt to pressure changes and temperature fluctuations
Effective heat conduction to protect the life and safety of components
Available in various thicknesses and sizes for specific applications
Good processing performance, easy to install and press, non-adhesive to sealing surfaces, and easy to disassemble
Low hardness, good compliance, low stress for effective protection of electrical components
Excellent high and low temperature resistance, chemical and mechanical stability, weather resistance, radiation resistance, and superior dielectric properties
| Properties | KB5120S |
|---|---|
| Color | Custom |
| Thermal Conductivity (W/m·K) | 2.0±0.5 |
| Hardness (Shore 00) | 40–70 |
| Thickness (mm) | 0.5–5.0 |
| Density (g/cm³) | 2.83±0.05 |
| Dielectric Strength (kV/mm) | ≥12 |
| Fire Rating | UL94 V-0 |
| Volume Resistivity (Ω·cm) | ≥1013 |
EV battery packs and energy storage systems
On-board chargers (OBC), inverters, and BMS units
IGBT & MOSFET power modules
LED lighting & telecom base stations
Consumer electronics & industrial control boards
Each thermal pad is protected with a PET release liner on both sides to prevent contamination and deformation. Pads are stacked in layers, separated by film or interleaving paper to avoid surface damage.
Pads are packed into anti-static bags or sealed PE film, then placed into a corrugated plastic (PP) box or rigid export-grade carton to prevent bending and moisture intrusion.
Standard Sheet Size: 200 mm × 300 mm (custom sizes available)
Thickness: 0.5 mm–5.0 mm
| Thickness | Pieces/Box (Approx.) |
|---|---|
| 0.5 mm | 200–300 pcs |
| 1.0 mm | 100–150 pcs |
| 2.0 mm | 50–80 pcs |
| 3.0 mm | 30–50 pcs |
| 5.0 mm | 20–30 pcs |
Note: Actual quantity may vary based on custom size, shape, and adhesive options.
Store in a dry, ventilated area away from direct sunlight
Recommended storage temperature: normal temperature
Avoid heavy pressure or sharp objects
Shelf life: 12 months from production date if unopened and properly stored
Vacuum packaging for long-term storage
Die-cut parts on release liner roll or sheet
Barcode or QR-code labeling
Inner trays or custom-fit foam inserts for precision parts
OEM or neutral packaging available upon request
Moisture-proof and dust-proof wrapping
Labeling with product code, lot number, and specification details
Export-ready wooden pallets available for large volume shipments
Global shipping available via air, sea, or courier
Lead time: 7–10 working days based on order volume and customization
Express prototyping support available for urgent projects
When you choose Pad Thermal KB5120S, you’re not just getting a product—you’re getting a complete thermal interface solution backed by expert support and consistent quality.
Delivered in custom sizes, thicknesses (0.5–5.0 mm), and quantities with protective PET release liners on both sides
Technical datasheet with thermal, mechanical, and electrical performance parameters for design reference
Free samples for testing and evaluation before mass production orders (upon request)
Engineering support to optimize your application and installation method
Custom labeling and packaging with barcode, batch number, size, and material code on export-ready packaging
Quality guarantee: 100% inspected, RoHS/REACH compliant, manufactured under ISO 9001 quality systems
KOMPA is a trusted innovator in silicone-based thermal interface materials. We combine materials science expertise with precision manufacturing to deliver solutions for demanding applications in EV battery systems, energy storage, automotive electronics, and industrial applications.
Over 8 years of experience in thermal materials
In-house R&D for continuous product innovation
ISO 9001-certified production with full traceability
Consistent performance, certified by third-party labs (UL, RoHS, REACH)
Tailored solutions: thickness, hardness, thermal conductivity, die-cutting
Technical support from prototype to mass production
Long-term cooperation with leading automotive and energy OEMs
Trusted by clients in Europe, North America, and Southeast Asia
Huawei – Global leader in communications, smart devices, and energy solutions
ZENERGY – Trusted supplier specializing in new energy battery systems
SAIC Motor – One of China’s largest and most innovative automotive manufacturers
Dongfeng Motor – Leading state-owned company in commercial and passenger vehicles
CRRC – World’s largest manufacturer of rail transit equipment and systems
CALB – Global innovator in lithium battery technology and energy storage solutions
Their trust speaks for our quality, reliability, and engineering excellence.
Choose KOMPA—where material innovation meets engineering precision.
We offer flexible customization to meet your specific thermal management needs. Our in-house engineering and fabrication capabilities ensure quick turnaround and precision quality.
| Option | Description |
|---|---|
| Thickness | From 0.5 mm to 5.0 mm; tolerance control available |
| Thermal Conductivity | Choose from 1.0 to 12.0 W/m·K grades depending on your heat transfer needs |
| Hardness (Shore 00/A) | Soft to firm grades for different assembly pressures |
| Die-Cutting/Shape | CNC or kiss-cut parts tailored to your drawing or 2D file |
| Color | Standard colors: Pink, Blue, Grey; custom colors available on request |
| Packaging | Custom inner trays, anti-static film, vacuum sealing, barcode labels, etc. |
| Flame Retardant Options | Available with UL94 V-0 certification |
Thermal Pad KB5120S enhances heat transfer between electronic components and heat sinks or metal housings. It is designed for applications requiring efficient thermal conductivity, soft compression, and electrical insulation. Its conformable silicone material and stable performance make it ideal for:
EV battery modules and energy storage systems (ESS)
Power electronics such as IGBT, MOSFET, and DC/DC converters
Automotive onboard chargers (OBC) and inverters
Telecommunication base stations and 5G modules
Industrial power control units
Its softness makes it perfect for filling air gaps between uneven surfaces, reducing thermal resistance and improving device longevity.
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When selecting a thermal interface material for applications requiring effective heat transfer and environmental protection, Thermal Pad KB5120S is an excellent choice. Its closed-cell silicone structure offers high thermal conductivity, superior moisture resistance, dust sealing, and mechanical cushioning, making it ideal for demanding environments such as EV battery modules, energy storage systems, and power inverters.
Consistent thermal conductivity up to 2.0 W/m·K
Closed-cell structure for dust and water resistance
Excellent compression performance
Flame retardant rating UL94 V-0
Long-term reliability under thermal cycling
EV battery module sealing and thermal transfer
ESS (Energy Storage System) battery gap filler
On-board charger and inverter protection
Outdoor electronics exposed to humidity and shock
KB5120S is available in multiple thicknesses (0.5–5.0 mm), custom die-cut shapes, and optional adhesive backing for fast and secure assembly. For help selecting the right grade or getting a datasheet/sample, please contact our engineering team.
