When voltage across the interface is aggressive and the assembly geometry allows a slightly thicker pad, the mid-tier HV grade becomes the practical choice. Parker Chomerics CHO-THERM HV2320 is a blue thermal insulator with a 0.020-inch profile, 2.3 W per meter-Kelvin apparent thermal conductivity, and full 20 kilovolt DC breakdown. At NEDC, we supply HV2320 to customers with higher-voltage bus bars, power modules, and industrial drives who need insulation and heat transfer in the same component.
Key Specifications
- Color: Blue
- Carrier: Thermally enhanced polyimide
- Thickness: 0.020 in (0.50 mm) with plus or minus 10 percent tolerance
- Apparent Thermal Conductivity: 2.3 W per meter-Kelvin (ASTM D5470)
- Thermal Impedance: 0.662 degrees C-inch squared per watt
- Breakdown Voltage DC: 20.0 kV (10.3 kV AC, ASTM D149)
- CTI: Material Class I, Carrier Class II (ASTM D3638)
- Hardness: Shore 00 30 (ASTM D2240)
- Specific Gravity: 2.9
- Heat Capacity: 1 J per gram-K (ASTM E1269)
- Coefficient of Thermal Expansion: 150 ppm/K
- 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 HV2320?
HV2320 doubles the thickness of its thinner siblings and gains thermal conductivity to match. The 20 kV DC breakdown makes it a solid fit for bus-bar assemblies and high-voltage power modules where standard grades would not provide sufficient safety margin. Its thermal impedance is still within a practical range for standard mounting pressures, so it does not require special hardware to achieve good contact.
Typical Applications
- Industrial motor drives and bus-bar modules
- Power conversion equipment with elevated bus voltage
- Automotive inverters with higher voltage tiers
- Television and large-format display power supplies
- General power semiconductor isolation in high-voltage systems
NEDC converts HV2320 in die-cut configurations at 9 by 9 inches standard. For higher conductivity in a thicker format, see HV3320. For thinner profiles, see HV1717 or HV1110.