NeoGraf eGRAF® SPREADERSHIELD™ SS300 Graphite

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NeoGraf eGRAF® SPREADERSHIELD™ SS300 Graphite
Categories:	Carbon; Graphite
Material Notes:	Made from flexible graphite, eGRAF® SPREADERSHIELD™ products function as both a passive heat spreader and heat shield. SPREADERSHIELD™ material can be die-cut, press-formed, or laminated with plastics, metals, adhesives, and other materials. Every SPREADERSHIELD™ part is customized to meet specific application needs and improve thermal performance within a limited space and weight. SPREADERSHIELD™ products have provided thermal solutions in a variety of industries and applications, including displays (PDP, LCD CCFL, LED BLU, OLED), cell phones, laptop and ruggedized computers, handheld gaming devices, batteries, projectors, set-top boxes, and automotive electronics. Each application is specialized to require different characteristics of SPREADERSHIELD™ products. Grade SS300 is designed specifically for use in large displays. Formerly a product of GrafTech.
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Physical Properties	Original Value	Comments

Thickness	510 microns	Standard
	250 - 1000 microns	Available Range
	940 microns	Standard

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.000650 ohm-cm	In-Plane
	0.0350 ohm-cm	Through-Plane

Thermal Properties	Original Value	Comments
CTE, linear	-0.400 µm/m-°C	In-Plane
	27.0 µm/m-°C	Through-Plane
Specific Heat Capacity	0.700 J/g-°C
Thermal Conductivity	4.50 W/m-K	Nominal, Through-Plane; ASTM-D5470 Modified Method
	300 W/m-K	Nominal, In-Plane; Angstrom's Method
Maximum Service Temperature, Air	400 °C
Minimum Service Temperature, Air	-40.0 °C
Flammability, UL94	V-0

Descriptive Properties
Thermal Contact Impedance - Per Side (°C·cm²/W)	0.3	at 0.50 mm spreader thickness

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 go back to viewing the property data in MatWeb's normal format.

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CGRAF901 / 107305

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