Phase Change

Hi-Flow 650P

Features & Benefits

  • Thermal Impedance: 0.20°C-in2/W (@25 psi)
  • 150°C high temperature reliability
  • Natural tack one side for ease of assembly
  • Exceptional thermal performance in an insulated pad

Description

Hi-Flow 650P is a thermally conductive phase change material, reinforced with a polyimide film that is naturally tacky on one side.The polyimide film provides a high dielectric strength and high cut through resistance. Hi-Flow 650P offers high temperature reliability ideal for automotive applications. Hi-Flow 650P is designed for use between a high-power electrical device requiring electrical isolation from the heat sink and is ideal for automated dispensing systems. Henkel recommends the use of spring clips to assure constant pressure with the component interface and the heat sink. Please refer to the TO-220 thermal performance data to determine the nominal spring pressure for your application.

Typical Applications include

  • Spring / clip-mounted devices
  • Discrete power semiconductors and modules

Properties

Typical properties of Hi-Flow 650P
Properties Imperial Value Metric Value Test Method
Reinforcement Carrier Polyimide Polyimide ***
Color Gold Gold Visual
Inherent Surface Tack 1 1 ***
Typical Use Temp (°F) / (°C) -40 to 302 -40 to 150 ***
Phase Change Temp (°F) / (°C) 126 52 ASTM D3418
Thickness (inch) / (mm) 0.0045 - 0.0055 0.114 - 0.140 ASTM D374
Elongation (%45° to Warp and Fill) 40 40 ASTM 882A
Tensile Strength (psi) / (MPa) 7,000 7,000 ASTM 882A
Film Thickness (inch) / (mm) 0.001 - 0.002 0.025 - 0.050 ASTM D374
Typical properties of Hi-Flow 650P
Electrical Imperial Value Metric Value Test Method
Dielectric Breakdown Voltage (Vac) 5000 5000 ASTM D149
Dielectric Constant (1000 Hz) 4.5 4.5 ASTM D150
Volume Resistivity (Ohm-meter) 10^12 10^12 ASTM D257
Flame Rating V-O V-O U.L. 94
Typical properties of Hi-Flow 650P
Thermal Imperial Value Metric Value Test Method
Thermal Conductivity (W/m-K) (1) 1.5 1.5 ASTM D5470
Typical properties of Hi-Flow 650P
Pressure (psi) 10 25 50 100 200
TO-220 Thermal Performance (°C/W) 0.010" 1.20 1.15 1.11 1.06 1.00
TO-220 Thermal Performance (°C/W) 0.015" 1.47 1.41 1.37 1.33 1.29
TO-220 Thermal Performance (°C/W) 0.020" 1.59 1.48 1.43 1.38 1.35
Thermal Impedance (ºC-in2/W) 0.010" 0.21 0.20 0.19 0.18 0.17
Thermal Impedance (ºC-in2/W) 0.015" 0.23 0.22 0.21 0.20 0.20
Thermal Impedance (ºC-in2/W) 0.020" 0.27 0.27 0.26 0.25 0.24
  • (1) This is the measured thermal conductivity of the Hi-Flow wax 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 overa

Configurations

Configurations available

  • Roll form, die-cut parts, sheet form
  • Available with 1.0, 1.5 or 2.0 mil Polyimide reinforcement carrier

Downloads

Data Sheet

Phase Change

Data Sheet

Hi-Flow 650P

Standard Configuration (Metric)

Phase Change

Standard Configuration (Metric)

Hi-Flow 650P

Standard Configuration (Imperial)

Phase Change

Standard Configuration (Imperial)

Hi-Flow 650P

RoHS Certificate

Phase Change

RoHS Certificate

Hi-Flow 650P

Halogen Testing Report

Phase Change

Halogen Testing Report

Hi-Flow 650P

Safety Data Sheet (SDS)

Phase Change

Safety Data Sheet (SDS)

Hi-Flow 650P
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