DOWSIL 340 Heat Sink Compound - Thermal conductive paste

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Atest: NSF H1 spożywczy do kontaktu z żywnością

Cechy szczególne: Dobra przyczepność do wielu podłoży, Dobra wytrzymałość dielektryczna, Klej/uszczelniacz jednoskładnikowy, Utwardzanie Acetoxy (Octowy)

Niska temperatura: mniej niż -50°C

Norma: FDA 177.2600, MIL-A-46106

Pojemność opakowania: 310ml

Przemysł: Sprzęt AGD,

Wysoka temperatura: +151°C do 200°C

Zastosowanie: Wielozadaniowe

DOWSIL™ 340 Heat Sink Compound

Thermal paste White, non-flowing, thick mixture with good thermal conductivity

Designed for thermal connection of electrical devices and PCB assemblies with heat sinks

Application:

  • heatsinks
  • processors and electronic systems
  • PCB assemblies
  • aircraft
  • starting and charging batteries
  • boards and components
  • connectors, wire harnesses

Features and benefits:

  • single-component
  • not flowing
  • does not require heating or hardening
  • increases reliability by flowing heat away from electrical circuit components

Benefits of use

System assemblies are continually designed to provide higher performance.
Especially in the area of ​​consumer devices, there is also a continuing trend towards smaller, more compact designs. The combination of these factors usually means that more heat is generated in the device. Managing the temperature of PCB system assemblies is a primary concern for design engineers.

A cooler device allows for more efficient operation and better reliability throughout the life of the device. As such, heat-conducting compounds play an integral role here.

Thermally conductive materials act as a thermal "bridge" removing heat from the heat source (device) to the surroundings via the heat carrier (i.e. heat sink). These materials have properties such as low thermal resistance, high thermal conductivity, and can achieve a thin bond line thickness (BLT), which can help improve heat transfer away from the device.

Basic parameters

Dowsil 340 Thermally conductive mixture

Parameter Unit Result
Composition Zinc oxide,
Polydimethylsiloxane
One-component or two-component One-component
Color White
Illiquid Yes
Viscosity cP 542,000
Pa-sec Pa-sec 542
Specific gravity (uncured) at 25 °C 2.1
Volatility % 0.23
Thermal conductivity btu/hr-ft-°F W/mK 0.67
Thermal resistance at 40 psi °C*cm2/W 0.16
Penetration (Worked) 1/10mm 290
Evaporation % 0.38
Shelf life at 38°C months 60

Storage and durability

The product should be stored in the original packaging, tightly closed to avoid any contamination. Store in accordance with the special instructions mentioned on the card. Product durability 5 years from the production date.

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