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THERMFLOW™ materials are thermally enhanced polymers designed to minimize the thermal resistance between power dissipating electronic components and their associated heat sinks. This low thermal resistance path maximizes heat sink performance and improves the reliability of microprocessors, memory modules, DC/DC converters and power modules.

The key feature of THERMFLOW materials is their phase-change characteristic. At room temperature, THERMFLOW materials are solid and easy to handle. This allows them to be consistently and cleanly applied as dry pads to a heat sink or component surface. THERMFLOW material softens as it reaches component operating temperatures. With light clamping pressure it will readily conform to both mating surfaces, similar to thermal grease. This ability to completely fill interfacial air gaps and voids typical of component packages and heat sinks allows THERMFLOW pads to outperform nonflowing elastomeric or graphite-based thermal pads and achieve performance comparable to thermal grease.

THERMFLOW materials are electrically non-conductive. However, since metal-to-metal contact is possible after the material undergoes phase-change in a typical heat sink assembly, THERMFLOW pads should not be used as electrical insulators.
Phase-Change
Unit of Measure
1 

Item #

Color

Carrier

Standard Thickness

Specific Gravity

Phase Transition Temperature

Operating Temperature Range

PC07DM-7 N/A Pink N/A 1 mil Polyester N/A 0.178 mm0.007 in N/A 1.1 N/A 55 ºC N/A –55 to 125 ºC–67 to 257 ºF
T710 with PSA N/A Light gray/off white N/A 2 mil Fiberglass N/A 0.138 mm0.0055 in N/A 1.15 N/A 45 ºC N/A –55 to 125 ºC–67 to 257 ºF
T725 N/A Pink N/A None - Free film N/A 0.125 mm0.005 in N/A 1.1 N/A 55 ºC N/A –55 to 125 ºC–67 to 257 ºF
T766 N/A Purple/gray foil N/A 1 mil Metal Foil N/A 0.088 mm0.0035 in N/A 2.6 N/A 55 ºC N/A –55 to 125 ºC–67 to 257 ºF
T557 N/A Gray N/A None - Free film N/A 0.125 mm0.005 in N/A 2.4 N/A 45/62 ºC N/A –55 to 125 ºC–67 to 257 ºF
T558 N/A Gray/gray foil N/A 1 mil Metal Foil N/A 0.115 mm0.0045 in N/A 3.65 N/A 45/62 ºC N/A –55 to 125 ºC–67 to 257 ºF
T777 N/A Gray N/A None - Free film N/A 0.115 mm0.0045 in N/A 1.95 N/A 45/62 ºC N/A –55 to 125 ºC–67 to 257 ºF
Unit of Measure
1