Parker Chomerics THERM-A-GAP™ 974 Thermally Conductive Gap Filler Pad

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Parker Chomerics THERM-A-GAP™ 974 Thermally Conductive Gap Filler Pad
Categories:	Polymer; Thermoset; Silicone
Material Notes:	Description: THERM-A-GAP™ 974 gap fillers offer the highest thermal conductivity for low to moderate clamping force applications. Features/Benefits: High thermal conductivity; 974 and G974 supplied with PSA for ease of use Typical Applications: Telecommunications equipment; Consumer electronics; Automotive electronics (ECUs); LEDs, lighting; Power conversion and Power semiconductors Product Attributes: Excellent thermal performance and Acrylic PSA for improved application Information provided by Chomerics
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Physical Properties	Metric	English	Comments

Specific Gravity	1.40 g/cc	1.40 g/cc	ASTM D792
Thickness	20.0 - 80.0 microns	0.787 - 3.15 mil
Deformation	7.0 % @Thickness 1.52 mm, Pressure 0.0345 MPa	7.0 % @Thickness 0.0600 in, Pressure 5.00 psi	0.025 in/min rate; ASTM C165 MOD
	11 % @Thickness 1.52 mm, Pressure 0.0689 MPa	11 % @Thickness 0.0600 in, Pressure 10.0 psi	0.025 in/min rate; ASTM C165 MOD
	12 % @Thickness 1.52 mm, Pressure 0.172 MPa	12 % @Thickness 0.0600 in, Pressure 25.0 psi	0.025 in/min rate; ASTM C165 MOD
	13 % @Thickness 1.52 mm, Pressure 0.345 MPa	13 % @Thickness 0.0600 in, Pressure 50.0 psi	0.025 in/min rate; ASTM C165 MOD
Outgassing - Total Mass Loss	0.59 %	0.59 %	TML; ASTM E595
Collected Volatile Condensable Material	0.18 %	0.18 %	ASTM E595

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	40	40	ASTM D2240

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+14 ohm-cm	1.00e+14 ohm-cm	ASTM D257
Dielectric Constant	3.2 @Frequency 1e+6 Hz	3.2 @Frequency 1e+6 Hz	ASTM D150
Dielectric Strength	5.10 kV/mm	130 kV/in	ASTM D149
Dissipation Factor	<= 0.0010 @Frequency 1e+6 Hz	<= 0.0010 @Frequency 1e+6 Hz	Chomerics Test

Thermal Properties	Metric	English	Comments
CTE, linear	100 µm/m-°C	55.6 µin/in-°F	ASTM E831
Specific Heat Capacity	0.900 J/g-°C	0.215 BTU/lb-°F	ASTM D1269
Thermal Conductivity	6.00 W/m-K	41.6 BTU-in/hr-ft²-°F	ASTM D5470
Maximum Service Temperature, Air	200 °C	392 °F
Minimum Service Temperature, Air	-55.0 °C	-67.0 °F

Processing Properties	Metric	English	Comments
Shelf Life	12.0 Month	12.0 Month	Months from date of shipment; Chomerics

Descriptive Properties
Carrier	PSA
Color	Blue
Penetrometer	25 mm		Chomerics

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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