When space inside an enclosure is limited and voltage across the thermal interface is moderate, the thinnest HV grade often makes the most sense. Parker Chomerics CHO-THERM HV1110 is a blue thermal insulator that delivers high-voltage isolation in a tight 0.010-inch profile. It is the softest and most thermally efficient grade in the CHO-THERM HV series, with a thermal impedance of only 0.373 degrees C-inch squared per watt. At NEDC, we supply HV1110 to customers who need reliable dielectric protection without sacrificing thin-gap thermal performance.
Key Specifications
- Color: Blue
- Carrier: Thermally enhanced polyimide
- Thickness: 0.010 in (0.25 mm) with plus or minus 10 percent tolerance
- Apparent Thermal Conductivity: 1.1 W per meter-Kelvin (ASTM D5470)
- Thermal Impedance: 0.373 degrees C-inch squared per watt
- Breakdown Voltage DC: 10.4 kV (5.04 kV AC, ASTM D149)
- Comparative Tracking Index: Material Class I, Carrier Class II (ASTM D3638)
- Hardness: Shore 00 30 (ASTM D2240)
- Specific Gravity: 2.9 (ASTM D792)
- Heat Capacity: 1 J per gram-K (ASTM E1269)
- Coefficient of Thermal Expansion: 150 ppm/K (ASTM E831)
- Volume Resistivity: low, contact NEDC for specific values
- Flammability: UL 94 V-0
- Outgassing: 0.13 percent TML, 0.03 percent CVCM (ASTM E595)
- RoHS Compliant: Yes
- Operating Temperature: minus 67 to 392 degrees F (minus 55 to 200 degrees C)
- Shelf Life: 18 months dry, 12 months with PSA
Why HV1110?
HV1110 offers the lowest thermal impedance in the HV series despite its thin profile. Its polyimide carrier keeps it soft and compliant, making it easy to handle and install. At only 30 Shore 00, it will conform to moderate surface irregularities, reducing interface resistance in practical assemblies. This makes it the first choice for standard transistor packages where the voltage requirement is real but not extreme.
Typical Applications
- Standard power semiconductors and transistor packages
- Television and display backlight inverters
- Consumer electronics with moderate voltage separation
- Automotive electronics with limited clearance
NEDC converts HV1110 in die-cut parts on 9 by 9 inch sheets, with or without PSA. For more thermal performance in the same thickness, step up to HV1717. For higher voltage and thickness, see HV2320.