PTM 7950 | Phase Change Pad

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
  • Pad Form

Product Description

PTM7950 is 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. Since PTM7950 comes only in 0.25mm and 0.2mm (thicker versions are under development) you need to be sure that this thickness is compatible and suitable for the flatness of your package. 

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

PTM 7950 cannot come in pad form on a reel. This is because the material is too soft and tends to wrinkle when rolled, especially when the size gets larger.

Key Features:

Highly Recommend For:

  • Power modules/inverters in automotive and power applications
  • High performance IT/enterprise computing devices
  • Consumer electronics, high performance IC
  • High power LED

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

Product Family
PTM7950  
160 x 400 x 0.2mm | Full Sheet 160 x 400 x 0.25mm Sheet 60 x 60 x 0.25mm Pad

Catalog Product

Unlike other products we offer, the products listed on this page cannot currently be ordered directly from the website.
Packaging
TDS, SDS & Technical documents

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.
 2.8
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.