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Heat Transfer Pads
An alternative to heat transfer compounds, these soft, flexible pads transfer heat from a source to a heat sink. They compress slightly to make up for surface imperfections and roughness. These pads are conformable with a slightly tacky surface that lightly adheres to both smooth and rough surfaces. Pads meet UL 94 V-0 for flame retardance.
For technical drawings and 3-D models, click on a part number.
| Thick. | Thick. Tolerance | Temperature Range, °F | For Use Outdoors | Tensile Strength, psi  | Color | Durometer | Each | |
4" × 4" | ||||||||
|---|---|---|---|---|---|---|---|---|
1 W/m-K Thermal Conductivity | ||||||||
| 0.020" | -0.002" to +0.002" | -75° to 390° | Yes | 130 | Gray | 20 OO (Extra Soft) | 0000000 | 000000 |
| 0.040" | -0.004" to +0.004" | -75° to 390° | Yes | 130 | Gray | 20 OO (Extra Soft) | 0000000 | 00000 |
| 0.060" | -0.006" to +0.006" | -75° to 390° | Yes | 130 | Gray | 20 OO (Extra Soft) | 0000000 | 00000 |
| 0.080" | -0.008" to +0.008" | -75° to 390° | Yes | 130 | Gray | 20 OO (Extra Soft) | 0000000 | 00000 |
3 W/m-K Thermal Conductivity | ||||||||
| 0.020" | -0.002" to +0.002" | -75° to 390° | Yes | 180 | Green | 40 OO (Extra Soft) | 0000000 | 00000 |
| 0.040" | -0.004" to +0.004" | -75° to 390° | Yes | 180 | Green | 40 OO (Extra Soft) | 0000000 | 00000 |
| 0.060" | -0.006" to +0.006" | -75° to 390° | Yes | 180 | Green | 40 OO (Extra Soft) | 0000000 | 00000 |
| 0.080" | -0.008" to +0.008" | -75° to 390° | Yes | 180 | Green | 40 OO (Extra Soft) | 0000000 | 00000 |
5 W/m-K Thermal Conductivity | ||||||||
| 0.020" | -0.002" to +0.002" | -75° to 390° | Yes | 40 | Yellow | 45 OO (Extra Soft) | 0000000 | 00000 |
| 0.040" | -0.004" to +0.004" | -75° to 390° | Yes | 40 | Yellow | 45 OO (Extra Soft) | 0000000 | 00000 |
| 0.060" | -0.006" to +0.006" | -75° to 390° | Yes | 40 | Yellow | 45 OO (Extra Soft) | 0000000 | 00000 |
| 0.080" | -0.008" to +0.008" | -75° to 390° | Yes | 40 | Yellow | 45 OO (Extra Soft) | 0000000 | 00000 |
8" × 8" | ||||||||
1 W/m-K Thermal Conductivity | ||||||||
| 0.020" | -0.002" to +0.002" | -75° to 390° | Yes | 130 | Gray | 20 OO (Extra Soft) | 0000000 | 00000 |
| 0.040" | -0.004" to +0.004" | -75° to 390° | Yes | 130 | Gray | 20 OO (Extra Soft) | 0000000 | 00000 |
| 0.060" | -0.006" to +0.006" | -75° to 390° | Yes | 130 | Gray | 20 OO (Extra Soft) | 0000000 | 00000 |
| 0.080" | -0.008" to +0.008" | -75° to 390° | Yes | 130 | Gray | 20 OO (Extra Soft) | 0000000 | 00000 |
3 W/m-K Thermal Conductivity | ||||||||
| 0.020" | -0.002" to +0.002" | -75° to 390° | Yes | 180 | Green | 40 OO (Extra Soft) | 0000000 | 00000 |
| 0.040" | -0.004" to +0.004" | -75° to 390° | Yes | 180 | Green | 40 OO (Extra Soft) | 0000000 | 00000 |
| 0.060" | -0.006" to +0.006" | -75° to 390° | Yes | 180 | Green | 40 OO (Extra Soft) | 0000000 | 00000 |
| 0.080" | -0.008" to +0.008" | -75° to 390° | Yes | 180 | Green | 40 OO (Extra Soft) | 0000000 | 00000 |
5 W/m-K Thermal Conductivity | ||||||||
| 0.020" | -0.002" to +0.002" | -75° to 390° | Yes | 40 | Yellow | 45 OO (Extra Soft) | 0000000 | 00000 |
| 0.040" | -0.004" to +0.004" | -75° to 390° | Yes | 40 | Yellow | 45 OO (Extra Soft) | 0000000 | 00000 |
| 0.060" | -0.006" to +0.006" | -75° to 390° | Yes | 40 | Yellow | 45 OO (Extra Soft) | 0000000 | 000000 |
| 0.080" | -0.008" to +0.008" | -75° to 390° | Yes | 40 | Yellow | 45 OO (Extra Soft) | 0000000 | 000000 |
Heat-Transfer Foil
Made of indium, this foil is more thermally conductive than thermal interface materials (TIMs) made of plastic. By efficiently pulling heat away from components that produce heat, such as CPUs, this foil lets you use smaller forced cooling systems to extend battery life. It’s also softer and more ductile than paste and putty, covering surfaces better to minimize airflow gaps and increase heat flow. Unlike paste and grease, this foil won’t leach out from between surfaces over time, nor will it dry out and lose effectiveness. It’s clean, easy to install and reposition, and requires no surface preparation. Foil is corrosion resistant and doesn’t need special storage.
Foil with 48% tin has greater tensile and shear strength than foil without tin, but is less thermally conductive.
Each | Package | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Thickness | Tensile Strength, psi | Shear Strength, lbs./sq. in. | Maximum Temperature, °F | Thermal Conductivity @ Temperature | Electrical Resistivity | For Use Outdoors | Each | Pkg. Qty. | Pkg. | ||
2" × 2" | |||||||||||
Indium | |||||||||||
| 0.004" | 270 | 890 | 255° | 86 W/m-K @ 185° F | 7.2×106 ohms-cm | No | 0000000 | 000000 | 20 | 0000000 | 0000000 |
| 0.01" | 270 | 890 | 255° | 86 W/m-K @ 185° F | 7.2×106 ohms-cm | No | 0000000 | 00000 | 20 | 0000000 | 000000 |
Indium Alloy (48% Tin) | |||||||||||
| 0.004" | 1,730 | 1,620 | 190° | 34 W/m-K @ 185° F | 1.5×105 ohms-cm | No | 0000000 | 00000 | 20 | 0000000 | 000000 |
| 0.01" | 1,730 | 1,620 | 190° | 34 W/m-K @ 185° F | 1.5×105 ohms-cm | No | 0000000 | 00000 | 20 | 0000000 | 000000 |
Circuit Board Coolers
Also known as thermal pads and thermal interface pads, these heat-dissipating pads pull heat away from electronic components. They’re often used to fill gaps between two surfaces that require thermal contact. All meet UL 94 V-0 for flame retardance.
| Lg. | Wd. | Thick. | Material | Color | Temp. Range, °F | Tensile Strength | Voltage | Hardness | Specifications Met | Each | |
Round | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1" | 1" | 0.009" | Fiberglass-Reinforced Silicone Rubber | Pink | -75° to 355° | 1,300 psi | 5,500V AC | Durometer 92A | UL 94 V-0 | 000000 | 00000 |
Diamond | |||||||||||
| 1 25/32" | 1 1/4" | 0.009" | Fiberglass-Reinforced Silicone Rubber | Pink | -75° to 355° | 1,300 psi | 5,500V AC | Durometer 92A | UL 94 V-0 | 000000 | 0000 |
Rectangular | |||||||||||
| 3/4" | 1/2" | 0.009" | Fiberglass-Reinforced Silicone Rubber | Pink | -75° to 355° | 1,300 psi | 5,500V AC | Durometer 92A | UL 94 V-0 | 000000 | 0000 |
| 13/16" | 15/16" | 0.009" | Fiberglass-Reinforced Silicone Rubber | Pink | -75° to 355° | 1,300 psi | 5,500V AC | Durometer 92A | UL 94 V-0 | 000000 | 0000 |
| 7/8" | 3/4" | 0.009" | Fiberglass-Reinforced Silicone Rubber | Pink | -75° to 355° | 1,300 psi | 5,500V AC | Durometer 92A | UL 94 V-0 | 000000 | 0000 |
| 1" | 3/4" | 0.009" | Fiberglass-Reinforced Silicone Rubber | Pink | -75° to 355° | 1,300 psi | 5,500V AC | Durometer 92A | UL 94 V-0 | 000000 | 0000 |
| 1 7/16" | 27/32" | 0.009" | Fiberglass-Reinforced Silicone Rubber | Pink | -75° to 355° | 1,300 psi | 5,500V AC | Durometer 92A | UL 94 V-0 | 000000 | 0000 |
Square | |||||||||||
| 12" | 12" | 0.009" | Fiberglass-Reinforced Silicone Rubber | Pink | -75° to 355° | 1,300 psi | 5,500V AC | Durometer 92A | UL 94 V-0 | 000000 | 00000 |
Heat-Transfer Tape
Quickly conduct heat away from electronic components. Tape is made of Kapton® polyimide for excellent electrical isolation, and the thermally conductive silicone facing gives it a nonstick surface.
| Wd. | Overall Thick. | Material | Facing Material | Adhesive Type | Temperature Range, °F | Voltage Rating | Thermal Conductivity | Color | Each | |
3 ft. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1/2" | 0.0045" | Kapton® Polyimide Plastic | Silicone Rubber | Acrylic | -20° to 300° | Not Rated | 0.6 W/m-K | Green | 0000000 | 000000 |
| 1" | 0.0045" | Kapton® Polyimide Plastic | Silicone Rubber | Acrylic | -20° to 300° | Not Rated | 0.6 W/m-K | Green | 0000000 | 00000 |
| 2" | 0.0045" | Kapton® Polyimide Plastic | Silicone Rubber | Acrylic | -20° to 300° | Not Rated | 0.6 W/m-K | Green | 0000000 | 00000 |
54 ft. | ||||||||||
| 1/2" | 0.0045" | Kapton® Polyimide Plastic | Silicone Rubber | Acrylic | -20° to 300° | Not Rated | 0.6 W/m-K | Green | 0000000 | 00000 |
| 1" | 0.0045" | Kapton® Polyimide Plastic | Silicone Rubber | Acrylic | -20° to 300° | Not Rated | 0.6 W/m-K | Green | 0000000 | 000000 |
| 2" | 0.0045" | Kapton® Polyimide Plastic | Silicone Rubber | Acrylic | -20° to 300° | Not Rated | 0.6 W/m-K | Green | 0000000 | 000000 |