Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Ready-to-Use Product Features
- Key Features and Benefits
- Good Thermal Performance-(0.80 W/m°k)
- Low Interface Thermal Resistance. -(0.05 T-In W)
- Thin Bond lines to ≤ mil
- Low bleed and evaporation.
- Non-Toxic.
- Reworkable/Easy to Remove.
- Easy to Apply by Dispensing or Screen Printing/Stencil.
Applications & Uses
- Applications
- Application Area
- Clean Up
Standard approved clean-up and disposal procedures should be followed in every situation. The use of disposable containers and utensils are recommended whenever possible to simplify and expedite clean-up. However, when disposable containers are impractical, STG-40 can be removed by cleaning solvents with such as Mineral Spirit (Paint Thinner), Heptane or Isopropyl Alcohol.
- Typical Application
STG-40 Heat Sink Compound is applied to the base and mounting studs of transistors, diodes and silicone controlled rectifiers. In these situations, a small amount of the thermal grease is applied using either the dispensing of screen printing/stencil methods STG-40 can be used as a high- voltage corona suppressant/non-flammable coating, in connections for fly back transformers located in TV sets and similar design applications. It is also used in mounting semiconductor devices; thermoelectric modules; power transistors and diodes; coupling entire heat generating assemblies to chassis; heat transfer medium on ballasts; thermal joints; thermocouple wells; mounting power resistors; and for any devices where efficient cooling is required in major industries including, electronic (computer, appliance, wireless, etc.), automotive and electrical.
Standard silicone thermal grease. Direct Replacement of Dow Corning 340 and Wakefield 120.
Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Viscosity | Thixotropic Paste | — | — |
| Specific Gravity (at 25°C) | 2.2 | — | — |
| Evaporation (at 200°C, 24 hrs) | 0.5 | %wt | — |
| Bleed (at 200°C, 24 Hrs) | 0.5 | %/Wt | — |
| Thermal Conductivity | 0.8 | W/m °K | ASTM D5470 |
| Thermal Resistance | 0.05 | °C-In/W | — |
| Dielectric Strength (0.05" gap) | 390 | Volts/mil | ASTM D150 |
| Dielectric Constant (at 25°C, 1000Hz) | 4.4 | — | ASTM D150 |
| Dissipation Factor (at 25°C, 1000 Hz.) | 0.0021 | — | ASTM D150 |
| Volume Resistivity | 2.8 x 10^14 | Ω-cm | ASTM D257 |
| Operating Temperature Range | -65 to 205 | °C | — |
Regulatory & Compliance
- Certifications & Compliance
Storage & Handling
- Shelf Life
- 5 Years
- Shelf Life
STG-40 has a shelf-life of 5 years at room temperature (25°C) in unopened containers. Slight settling of the filler may occur during long-term storage. In this case, it is recommended to re-disperse the filler by hand or mechanical mixing. Refrigerate material at 0-10°C to avoid any settling.