SIL-PAD

SIL-PAD K-4

Features & Benefits

  • Thermal impedance: 0.48°C-in2/W (@50 psi)
  •  Withstands high voltages
  •  High dielectric strength
  •  Very durable

Properties

Typical properties of SIL-PAD K-4
Properties Imperial Value Metric Value Test Method
Reinforcement Carrier Polyimide Polyimide ***
Color Gray Gray Visual
Hardness (Bulk Rubber) (Shore 00) 90 90 ASTM D2240
Typical Use Temp (°F) / (°C) -76 to 356 -60 to 180 ***
Thickness (inch) / (mm) 0.006 0.152 ASTM D374
Breaking Strength (lbs/inch) / (kN/m) 30 5 ASTM D1458
Elongation (%45° to Warp and Fill) 40 40 ASTM D412
Tensile Strength (psi) / (MPa) 5000 34 ASTM D412
Typical properties of SIL-PAD K-4
Electrical Imperial Value Metric Value Test Method
Dielectric Breakdown Voltage (Vac) 6000 6000 ASTM D149
Dielectric Constant (1000 Hz) 5.0 5.0 ASTM D150
Volume Resistivity (Ohm-meter) 10^12 10^12 ASTM D257
Flame Rating V-O V-O U.L. 94
Typical properties of SIL-PAD K-4
Thermal Imperial Value Metric Value Test Method
Thermal Conductivity (W/m-K) 0.9 0.9 ASTM D5470
Typical properties of SIL-PAD K-4
Pressure (psi) 10 25 50 100 200
TO-220 Thermal Performance (ºC/W) 3.66 3.43 3.13 2.74 2.42
Thermal Impedance (°C-in2/W) 1.07 0.68 0.48