DOWSIL TC-5121C Thermal Grease | Single-Part 2.8W/mK Pump-Out Resistant Electronics Cooling
Basic Product Properties
TC-5121 C is a single-part, non-curing thermal grease with greenish-yellow viscosity. It delivers 2.8W/mK thermal conductivity, low thermal resistance (0.09℃·cm²/W), and pump-out resistance, designed for mid-to-high-end electronics thermal interfaces.
Product Description
Featuring a filled polydimethylsiloxane matrix with optimized polymer structure, this compound utilizes thermally conductive metal oxides to create efficient heat-transfer bridges between components and heat sinks. By minimizing interfacial thermal resistance and maintaining stable heat sink seals, it enhances device efficiency and reliability in compact, high-power designs.
Advanced Properties
Pump-Out Resistance: Optimized polymer matrix minimizes material migration during thermal cycling.
Ultra-Thin Bond Lines: Enables minimal Bond Line Thickness (BLT) for maximized contact efficiency.
Process Flexibility: Non-curing formulation eliminates oven requirements; compatible with screen/stencil printing and dispensing.
Application Scenarios
- 1. Gaming GPU Cooling: Used on NVIDIA/AMD high-end GPU dies, where 2.8W/mK conductivity manages transient power spikes.
- 5G Base Station PAs: Deployed in Ericsson Air 6488 RF power amplifiers for GaN device thermal management.
- EV On-Board Chargers: Ensures cycling stability in BYD e-platform 40kW fast-charging modules.
Typical Properties Table
| Test Method | Property | Unit | Value |
| - | Form | - | One-part |
| - | Color | - | Greenish yellow |
| CTM 0050 | Viscosity | Pa·s | 79.0 |
| | | cP | 79,000 |
| CTM:0905 | Thixotropy Index | - | 1.69 |
| CTM:0540 | Specific Gravity (Uncured) | - | 4.2 |
| - | Non-Volatile Content | % | 99.93 |
| CTM:1388 | Thermal Conductivity | W/m·K | 2.8 |
| - | Thermal Resistance @40psi | ℃·cm²/W | 0.09 |
| CTM:0114 | Dielectric Strength | kV/mm | 1.89 |
| | | Volts/mil | 47.3 |
| CTM:1400 | Volume Resistivity | ohm·cm | 1.3×10¹³ |
| CTM:1139 @1kHz | Dielectric Constant | - | 14.0 |
| CTM:1139 @1kHz | Dissipation Factor | - | 0.073 |
1. Who are we?
We are Shenzhen Huazhisheng New Material Technology Co., Ltd., a professional industrial adhesives and sealants supplier based in China since 2018. we serve global markets: Mainland China (60%), Southeast Asia (20%), North America (10%), and Europe (10%).
2. What products do you offer?
we supply high-performance adhesives and sealants from global leaders including:
Cemedine, Dow Corning, Shin-Etsu, Araldite, and Momentive,etc.
3. How do you guarantee product quality?
Quality assurance through:
Mandatory pre-production samples approval
Final inspection by QC team before shipment
International certifications: SGS, UL, FDA, RoHS, REACH
4. Why choose us over other suppliers?
Reliable Supply:Authentic products from top manufacturers
Expert Support:Technical guidance for product selection
Global Compliance:Certifications meeting target market standards
Efficient Service:Customized solutions & professional support
5. What services do you provide?
Delivery:EXW/FOB/CIF
Payment:USD/EUR/CNY/HKD via T/T, L/C
Support:Technical consultation & logistics coordination
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Single Part DOWSIL TC-5121C Thermal Grease 2.8W/MK Pump Out Resistant Electronics Cooling Images
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