COOLTHERM TC-501

Harmonization Code : 3208.20.90 | Paints and varnishes that are dispersed or dissolved in a non aqueous medium

COOLTHERM TC-501

Main features

  • 25 to 50 um Installed Bondline
  • 3.6 W/(m K) Thermal Conductivity
  • 24-Hour Working Life at 25 deg C

Product Description

CoolTherm TC-501 Thermally Conductive Grease is a one-component, gray, solvent-free silicone TIM2 grease for heat-spreader-to-heat-sink interfaces. Typical viscosity is 128,400 cP at 25 deg C and typical thermal conductivity is 3.6 W/(m K). Documented installed bondlines are typically 25 to 50 um, with a 24-hour working life at 25 deg C. The formulation was developed to eliminate pump-out and remains reworkable; it can be removed with isopropyl alcohol or acetone.

Key features

  • Thin installed bondline: The documented installed TIM2 bondline is typically 25 to 50 um.
  • Thermal conductivity: Typical thermal conductivity is 3.6 W/(m K).
  • Room-temperature working life: Typical working life is 24 hours at 25 deg C.

Applications

TIM2 interface between heat spreaders and heat sinks; reworkable thermal interfaces in packages that cannot use a cure profile.

Product Family

COOLTHERM TC-501

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Gray Paste
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
3.12
Physical Properties
Viscosity
Viscosity is a measurement of a fluid’s resistance to flow. Viscosity is commonly measured in centiPoise (cP). One cP is defined as the viscosity of water and all other viscosities are derived from this base. MPa is another common unit with a 1:1 conversion to cP. A product like honey would have a much higher viscosity -around 10,000 cPs- compared to water. As a result, honey would flow much slower out of a tipped glass than water would. The viscosity of a material can be decreased with an increase in temperature in order to better suit an application
128,400 mPa.s
Thermal Properties
Thermal Conductivity
Thermal conductivity describes the ability of a material to conduct heat. It is required by power packages in order to dissipate heat and maintain stable electrical performance. Thermal conductivity units are [W/(m K)] in the SI system and [Btu/(hr ft °F)] in the Imperial system.
3.6 W/m.K

Additional Information

Technical properties

As-supplied / in-service grease properties

TC-501 is a non-curing TIM grease; these values describe the supplied material and its documented installed-interface use.

PropertyValueUnitMethod / condition
AppearanceGray pasteTypical
Viscosity128,400cPTypical; 25 deg C
Specific gravity3.12Typical
Thermal conductivity3.6W/(m K)Typical; Hot Disc Transient Method; ISO 22007-2; processing dependent
Working life24h25 deg C
Typical bondline25 to 50umInstalled TIM2 interface
Shelf life6monthsOriginal unopened syringe; stored at -30 deg C, upright with dispense tip down

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