Hi-Flow
®
625
July 2011
PRODUCT DESCRIPTION
Reinforced Phase Change
Thermal Interface Material
FEATURES AND BENEFITS
• Thermal impedance: 0.71°C-in
2
/W
(@25 psi)
• Electrically isolating
• 65°C phase change compound coated
on PEN film
• Tack-free and scratch-resistant
PROPERTY
Color
TYPICAL PROPERTIES OF HI-FLOW 625
IMPERIAL VALUE
Green
PEN Film
0.005
60
30,000
302
149
4000
3.5
10
10
METRIC VALUE
Green
PEN Film
0.127
60
206
150
65
4000
3.5
10
10
TEST METHOD
Visual
—
ASTM D374
ASTM D882A
ASTM D882A
—
ASTM D3418
ASTM D149
ASTM D150
ASTM D257
U.L. 94
ASTM D5470
Reinforcement Carrier
Thickness (inch) / (mm)
Elongation (%45° to Warp and Fill)
Tensile Strength (psi) / (MPa)
Continuous Use Temp (°F) / (°C)
Phase Change Temp (°F) / (°C)
ELECTRICAL
Dielectric Breakdown Voltage (Vac)
Dielectric Constant (1000 Hz)
Volume Resistivity (Ohm-meter)
Flame Rating
THERMAL
Thermal Conductivity (W/m-K) (1)
V-O
0.5
10
2.26
0.79
25
2.10
0.71
V-O
0.5
50
2.00
0.70
THERMAL PERFORMANCE vs PRESSURE
Pressure (psi)
TO-220 Thermal Performance (°C/W)
Thermal Impedance (°C-in
2
/W) (2)
100
1.93
0.67
200
1.87
0.61
Hi-Flow
®
625 is a film-reinforced phase
change material. The product consists of
a thermally conductive 65°C phase change
compound coated on PEN film.
Hi-Flow
®
625 is designed to be used as a
thermal interface material between
electronic power devices that require
electrical isolation and a heat sink. The
reinforcement makes Hi-Flow
®
625
easy to handle, and the 65°C phase
change temperature of the coating material
eliminates shipping and handling problems.
The PEN film has a continuous use
temperature of 150°C.
Hi-Flow
®
625 is tack-free and scratch-
resistant at production temperature and
does not require a protective liner in most
shipping situations. The material has the
thermal performance of 2-3 mil mica and
grease assemblies.
Note: To build a part number, visit our
website at www.bergquistcompany.com.
1) This is the measured thermal conductivity of the Hi-Flow coating. It represents one conducting layer in a three-layer laminate. The
Hi-Flow coatings are phase change compounds. These layers will respond to heat and pressure induced stresses. The overall conductivity
of the material in post-phase change, thin film products is highly dependent upon the heat and pressure applied. This characteristic is
not accounted for in ASTM D5470. Please contact Bergquist Product Management if additional specifications are required.
2) The ASTM D5470 test fixture was used and the test sample was conditioned at 70°C prior to test. The recorded value includes
interfacial thermal resistance. These values are provided for reference only. Actual application performance is directly related to the
surface roughness, flatness and pressure applied.
TYPICAL APPLICATIONS INCLUDE
• Spring / clip mounted
• Power semiconductors
• Power modules
CONFIGURATIONS AVAILABLE
• Sheet form, die-cut parts and roll form
• With or without pressure sensitive adhesive
PDS_HF_625_0711
TDS Hi-Flow
®
625, July 2011
Disclaimer
Note:
The information provided in this Technical Data Sheet (TDS) including the
recommendations for use and application of the product are based on our
knowledge and experience of the product as at the date of this TDS. The product
can have a variety of different applications as well as differing application and
working conditions in your environment that are beyond our control. Henkel is,
therefore, not liable for the suitability of our product for the production processes
and conditions in respect of which you use them, as well as the intended
applications and results. We strongly recommend that you carry out your own
prior trials to confirm such suitability of our product.
Any liability in respect of the information in the Technical Data Sheet or any other
written or oral recommendation(s) regarding the concerned product is excluded,
except if otherwise explicitly agreed and except in relation to death or personal
injury caused by our negligence and any liability under any applicable mandatory
product liability law.
In
case products are delivered by Henkel Belgium NV, Henkel Electronic
Materials NV, Henkel Nederland BV, Henkel Technologies France SAS and
Henkel France SA please additionally note the following:
In case Henkel would be nevertheless held liable, on whatever legal ground,
Henkel’s liability will in no event exceed the amount of the concerned delivery.
In case products are delivered by Henkel Colombiana, S.A.S. the following
disclaimer is applicable:
The information provided in this Technical Data Sheet (TDS) including the
recommendations for use and application of the product are based on our
knowledge and experience of the product as at the date of this TDS. Henkel is,
therefore, not liable for the suitability of our product for the production processes
and conditions in respect of which you use them, as well as the intended
applications and results. We strongly recommend that you carry out your own
prior trials to confirm such suitability of our product.
Any liability in respect of the information in the Technical Data Sheet or any other
written or oral recommendation(s) regarding the concerned product is excluded,
except if otherwise explicitly agreed and except in relation to death or personal
injury caused by our negligence and any liability under any applicable mandatory
product liability law.
In case products are delivered by Henkel Corporation, Resin Technology
Group, Inc., or Henkel Canada Corporation, the following disclaimer is
applicable:
The data contained herein are furnished for information only and are believed to
be reliable. We cannot assume responsibility for the results obtained by others
over whose methods we have no control. It is the user’s responsibility to
determine suitability for the user’s purpose of any production methods mentioned
herein and to adopt such precautions as may be advisable for the protection of
property and of persons against any hazards that may be involved in the handling
and use thereof. In light of the foregoing,
Henkel Corporation specifically
disclaims all warranties expressed or implied, including warranties of
merchantability or fitness for a particular purpose, arising from sale or use
of Henkel Corporation’s products. Henkel Corporation specifically
disclaims any liability for consequential or incidental damages of any kind,
including lost profits.
The discussion herein of various processes or
compositions is not to be interpreted as representation that they are free from
domination of patents owned by others or as a license under any Henkel
Corporation patents that may cover such processes or compositions. We
recommend that each prospective user test his proposed application before
repetitive use, using this data as a guide. This product may be covered by one or
more United States or foreign patents or patent applications.
Trademark usage
Except as otherwise noted, all trademarks in this document are trademarks of
Henkel Corporation in the U.S. and elsewhere. ® denotes a trademark
registered in the U.S. Patent and Trademark Office
Reference 0.1
Americas
+1.800.347.4572
Europe
+31.35.5380684
For the most direct access to local sales and technical support visit: www.bergquistcompany.com
Asia
+852.2690.9296
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Bergquist Company
:
HF625-0.005-00-1212 HF625-0.005-AC-1212
