Thermals: Therm-A-Gap® – T174, A174, and F174 Typical Properties

Conduction

Typical Properties T174 A174 F174
Composition Aluminum Oxide Filled Silicone on Fiberglass Reinforced Carrier Aluminum Oxide Filled Silicone on Aluminum Foil Carrier Aluminum Oxide Filled Silicone with Interior Fiberglass Mesh
Color Light Purple Light Purple Light Purple
Thickness, tolerance .004-.010 .002-.010 .002-.010
Thickness, inch 0.040-0.200 .020-.200 .020-.100

Thermal

Typical Properties T174 A174 F174
Thermal Impedance @ 10 psi °C-in2/W 1.3-3.0 0.9-2.8 1.0-2.4
Thermal conductivity, W/m-k @10 psi 1.0 1.0 1.0
Operating Temperatures Range -55 to +200 -55 to +200 -55 to +200

Electrical

Typical Properties T174 A174 F174
Dielectric Strength, Vac/mil >300 Not applicable >300

Mechanical

Typical Properties T174 A174 F174
Adhesive Shelf Life 6 months 12 months Not applicable
Adhesive Peel Strength oz/in 12 16 Not applicable
Hardness <15 <15 <30
Specific Gravity 2.3 2.3 2.3
Flammability Rating (UL 94) V-1 V-0 HB