Epoxy Technology EPO-TEK® H75 Thermally Conductive, Electrically Insulating Epoxy

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Epoxy Technology EPO-TEK® H75 Thermally Conductive, Electrically Insulating Epoxy
Categories:	Polymer; Thermoset; Epoxy; Epoxy, Thermally Conductive
Material Notes:	Material Description: A two component, high Tg, thermally conductive, electrically insulating epoxy designed for semiconductor packaging including heat sinking, hermetic sealing, and opto-electronic assemblies. It may be considered a higher viscosity alternative to EPO-TEK® H74. Information Provided by Epoxy Technology
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Physical Properties	Metric	English	Comments

Specific Gravity	1.02 g/cc	1.02 g/cc	Part B
	2.27 g/cc	2.27 g/cc	Part A
Particle Size	<= 50 µm	<= 50 µm
Viscosity	300000 - 400000 cP @Temperature 23.0 °C	300000 - 400000 cP @Temperature 73.4 °F	0.5 rpm

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	95	95
Tensile Modulus	6.52 GPa	946 ksi	Storage
Shear Strength	13.04 MPa	1892 psi	Lap
	>= 46.9 MPa	>= 6800 psi	Die

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 2.00e+12 ohm-cm	>= 2.00e+12 ohm-cm
Dielectric Constant	5.37 @Frequency 1000 Hz	5.37 @Frequency 1000 Hz
Dissipation Factor	0.0080 @Frequency 1000 Hz	0.0080 @Frequency 1000 Hz

Thermal Properties	Metric	English	Comments
CTE, linear	29.0 µm/m-°C	16.1 µin/in-°F	Below Tg
	90.0 µm/m-°C	50.0 µin/in-°F	Above Tg
Thermal Conductivity	0.660 W/m-K	4.58 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air	250 °C	482 °F	Continuous
	350 °C	662 °F	Intermittent
Minimum Service Temperature, Air	-55.0 °C	-67.0 °F	Continuous
	-55.0 °C	-67.0 °F	Intermittent
Glass Transition Temp, Tg	>= 100 °C	>= 212 °F	Dynamic Cure 20—200°C /ISO 25 Min; Ramp 10—200°C @ 20°C/Min
Decomposition Temperature	416 °C	781 °F	Degradation Temperature

Processing Properties	Metric	English	Comments
Cure Time	5.00 min @Temperature 150 °C	0.0833 hour @Temperature 302 °F	Minimum
	30.0 min @Temperature 100 °C	0.500 hour @Temperature 212 °F	Minimum
Pot Life	180 min	180 min
Shelf Life	12.0 Month @Temperature 25.0 °C	12.0 Month @Temperature 77.0 °F

Descriptive Properties
Color	Amber		Part B
	Gray		Part A
Consistency	Thick paste
Mix Ratio by Weight	100:3.3
Number of Components	Two
Weight Loss	<0.05%		200°C
	0.2%		300°C
	0.8%		250°C

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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