Products / Parker / Thermal and Power Management / THERMFLOW T725 Non-Silicone, Phase-Change Thermal Interface Pads
THERMFLOW® T725 phase-change Thermal Interface Materials (TIMs) completely fill interfacial air gaps and voids with superior thermal performance and is ideal for vertical applications.
THERMFLOW® phase-change Thermal Interface
Materials (TIMs) completely fill interfacial air gaps and voids.
They also displace entrapped air between power dissipating
electronic components. Phase-change materials are designed to
maximize heatsink performance and improve component reliability.
Upon reaching the required melt temperature, the pad will fully
change phase and attain minimum bond-line thickness (MBLT) - less
than 0.001 inch or 0.0254mm, and maximum surface wetting. This
results in practically no thermal contact resistance due to a very
small thermal resitance path.
At room temperature, THERMFLOW materials are solid and easy to
handle. This allows them to be consistently and cleanly applied
as dry pads to a heat sink or component surface. THERMFLOW material
softens as it reaches component operating temperatures.
With light clamping pressure it will readily conform to both mating
surfaces.
This ability to completely fill air gaps and voids typical of
component packages and heat sinks allows THERMFLOW pads to achieve
performance superior to any other thermal interface materials.
Standard THERMFLOW products are electrically non-conductive however
metal-to-metal contact is possible
after the material undergoes phase-change, decreasing their
electrical isolation properties. PC07DM-7 is the only phase-change
materials recommended for use as a dielectric insulator.
Chomerics offers two types of phase change materials—traditional
thermal interface pads and Dual Phase Change Polymer Solder Hybrids.
Dual Phase Change Polymer Solder Hybrid Materials
Dual Phase Change Thermal
Interface Materials consist of binder and fillers which both phase-
change to exhibit the lowest thermal impedance of the phase-change
family. These Thermal Interface Materials provide superior long term
reliability and performance. For optimum performance, the pads must
be exposed to temperatures above 64ºC during operation or by a
burn-in cycle to achieve lowest thermal impedance and highest
thermal performance.
Features/Benefits
• Low thermal impedance
• Proven solution – years of production use in personal computer OEM
applications
• Demonstrated reliability through thermal cycling and accelerated
age testing
• Can be pre-applied to heat sinks
• Protective release liner prevents contamination of material prior
to final component assembly
• Tabs available for easy removal of release liner (T710, T725*,
T557, T777, PCO7DM)
* T725 is only offered with a tab
• Available in custom die-cut shapes, kiss-cut on rolls
• RoHS Compliant
Typical Applications
• Microprocessors
• Graphics Processors
• Chipsets
• Memory Modules
• Power Modules
• Power Semiconductors
Handling Information
These products are defined by Chomerics as “articles” according to
the following generally recognized regulatory definition for
articles:
An article is a manufactured item “formed to a specific shape or
design during manufacturing,” which has “end use functions”
dependent upon its size and shape during end use and which has
generally “no change of chemical composition during its end use.”
In addition:
• There is no known or anticipated exposure to hazardous
materials/substances during routine and anticipated use of the
product.
• The product’s shape, surface, and design is more relevant than its
chemical composition.
These materials are not deemed by Chomerics to require an MSDS. For
further questions, please contact Chomerics at 781-935-4850.
Application
Material may flow when oriented vertically, especially at higher
temperatures. This does not affect thermal performance, but should
be considered if appearance is important.
Clean Up
THERMFLOW material can be removed with solvens such a toluene, MEK
or isopropyl alcohol.
T725
• Excellent thermal performance
• Inherently tacky – no adhesive required
• Ideal for vertical applications
• Sticky n'ature limits flowing in vertical applications
• Tabs available for easy removal