PTM 7950-SPS | Phase Change Paste

Harmonization Code : 3824.99.96.99 |   Prepared binders for foundry moulds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included : Other : Other: Other
Main features
  • 0.04 Thermal Impedance
  • 8.5 Thermal Conductivity
  • Slow drying solvent

Product Description

PTM7950SPS is an identical version of PTM7950-SP but with a slow drying solvent (S). PTM7950SPS is the paste version of PTM7950, a super highly thermally conductive Phase Change Material (PCM). It is designed to minimize thermal resistance at interfaces, maintain excellent performance through reliability testing, and provide scalable application at a competitive cost. Based on a novel polymer PCM system, PTM7950 exhibits excellent interface wettability during typical operating temperature ranges, resulting in extremely low surface contact resistance. PTM7950SPS is designed for automatic stencil printing manufacturing process, which largely helps with productivity and could be printed as low as 0.1mm. Check the comparison with pad versionPTM7950SPS needs extra drying steps after being printed and before assembly. Also, PTM7950SPS requires longer time for drying compared with standard PTM7950SP

Available Versions: (Check the difference between pad and paste version)

Key Features:

Highly Recommend For:

  • Power modules/inverters in e-mobility and power distribution
  • High performance IT/enterprise computing devices
  • Consumer electronics, high performance IC
  • High powered LEDs

Know More about PTM7950's superior thermal performance and long-term reliability.  

Drying Schedule:

  • 10 mins at 120°C or
  • 25 mins at 100°C or
  • 48 hours at Room temperature


Product Family
1Kg Jar 300cc Al cartridge

Catalog Product

Unlike other products we offer, the products listed on this page cannot currently be ordered directly from the website.

Technical Specifications

General Properties
Specific Gravity
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.
Thickness range 0.25 mm
Electrical Properties
Volume Resistivity
Volume Resistivity
Volume resistivity, also called volume resistance, bulk resistance or bulk resistivity is a thickness dependent measurement of the resistivity of a material perpendicular to the plane of the surface.
2.1x1014 Ohms⋅cm
Thermal Properties
Thermal Conductivity
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.
8.5 W/m.K
Thermal Impedance 0.04 °C·cm²/W

Additional Information

Honeywell PTM7950 is one of the most successful TIM products used in high power inverters and high performance computing devices. Ultra-low thermal impedance with minimum achievable BLT and superior long-term reliability make PTM7950 stand out from the competitors. PTM7XXX series also presents stability among vertical applications and pass automotive standard vibration test (Check the Vibration & Shock Test Report), thus PTM7XXX is currently widely used in automotive applications such as power inverters