GAP PAD 2000S40, .125", 4"X4" SHEET; Insulator Body Material: Fibreglass; Thermal Conductivity: 2W/m.K; Breakdown Voltage Vbr: 2.5kV; Thickness: 3.18mm; Volume Resistivity: 10ohm-m; Thermal Impedance: 0.97°C/W; Dielectric Stre