# CHO-THERM T441 Thermal Pad
**Meta title:** CHO-THERM T441 | Silicone Fiberglass Thermal Pad | NEDC
**Meta description:** CHO-THERM T441 is a 0.008 inch pink silicone fiberglass thermal insulator at 1.1 W per meter-Kelvin. Available on rolls with or without PSA at NEDC.
**Tags:** CHO-THERM T441, Parker Chomerics, silicone thermal pad, fiberglass reinforced
**Slug:** cho-therm-t441-thermal-pad
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Thickness, dielectric strength, and ease of handling all matter when you need a thermal pad that doubles as an electrical insulator. Parker Chomerics CHO-THERM T441 is a pink silicone pad reinforced with fiberglass. It is one of the most versatile and well-known grades in the CHO-THERM line-up. Its 0.008 inch profile, 1.1 W per meter-Kelvin thermal conductivity, and strong dielectric properties make it a reliable choice for power electronics across a wide range of industries. At NEDC, we convert T441 in standard sizes and custom profiles to simplify your bill of materials.
Key Specifications
- Material: Silicone with fiberglass reinforcement
- Thickness: 0.008 in (0.20 mm)
- Thickness Tolerance: plus or minus 0.001 in
- Color: Pink
- Thermal Conductivity: 1.1 W per meter-Kelvin (ASTM D5470)
- Thermal Impedance @ 300 psi: 0.41 degrees C-inch squared per watt (dry)
- Voltage Breakdown Dry: 8,700 Vac per mil (350 kVac per mm, ASTM D149)
- Voltage Breakdown Wet: 8,100 Vac per mil (ASTM D149)
- Volume Resistivity: 10 to the 14 power ohm-cm (ASTM D257)
- Tensile Strength: 2,800 psi (19.3 MPa)
- Hardness: Shore A 80
- Specific Gravity: 2.45
- Flammability: UL 94 V-0
- Operating Temperature: minus 40 to 392 degrees F
- Shelf Life: Indefinite (dry pad); 12 months (with PSA)
Why CHO-THERM T441 Is a Popular Choice
T441 hits the sweet spot for commercial-grade thermal management. Its thermal impedance of 0.41 degrees C-inch squared per watt at 300 psi delivers solid heat transfer without the high cost of high-performance grades. The fiberglass carrier makes it mechanically tough enough to survive assembly and resist puncture when mounting hardware applies pressure. Its availability on continuous rolls also means it works well in high-volume converting operations.
Typical Applications of T441
- Power supplies and uninterruptible power supplies
- Power semiconductors including MOSFETs and IGBTs
- Television and consumer electronics
- Telecommunications equipment
- Motor and engine controllers
NEDC Converting and Ordering
NEDC stocks T441 in sheet and roll form. We can supply die-cut parts, slit rolls, and sheets with or without PSA. Standard die-cut part numbers and roll formats are available. For custom sizes, send us your drawing or device outline and we will return a quote promptly.
Compare T441 with other CHO-THERM grades like T609 for higher conductivity, or T500 when you need to move into high-performance thermal management.
You can also browse our broader collection of gap filler pads for alternative options at NEDC gap filler pads.