Softtherm U 281 silicone free - MH&W Thermal Products

Softtherm  U281Flexible ceramic thermal conductive and isolating film Softtherm U 281 is especially designed for silicone sensitive applications and is an alternative material to the silicone based Softtherm films. The U 281 film has excellent electrical isolation and a very good thermal conductivity.

Possible Thickness:
U 281: 0.5mm – 3.0mm

Applications

  • RD-RAM memory modules
  • Heat pipe thermal solutions
  • Control units
  • Plasma supply console
  • LED Applications
  • Automotive engines
  • Property Symbol Unit Softtherm
    U 281
    * – Youngs Modulus sample size 30x30x2.5mm3;- variable contact pressure;- compression 50% of measured thickness;
    Color gray
    Thermal Properties
    Thermal Resistance Rth K/W 0.60
    Thermal Impedance Rti °Cmm²/W
    Kin²/W
    240
    0.37
    Thermal Conductivity λ W/mK 2.0
    Electrical Properties
    Breakdown Voltage Ud;ac kV 7.0
    Dielectric Breakdown Ed;ac kV/mm 14
    Volume Resistivity Ωcm 5.32×109
    Dielectric Loss Factor tan δ 1 7.8×10-2
    Dielectric Constant εr 1 5.57
    Mechanical Properties
    Measured Thickness (±10%) mm 0.5
    Hardness Shore A 55 – 65
    Youngs Modulus* N/cm² 244
    Physical Properties
    Application Temperature °C -40 to +130
    Density ρ g/cm³ 2.6
    Total Mass Loss TML Ma.-% < 0.9
    Flame Class UL 94V-0
  • Softtherm U 281 silicone-free Graph