Amazon.com: Ceramic Sheet, Alumina Ceramic Sheet, 100pcs To-247 Alumina Ceramic Insulating Sheet Mos Transistor Igbt Cooling Pad 17 X 22 X 1mm : Industrial & Scientific
Amazon.com: 100 Pcs TO-247 17 x 22 x 1mm Alumina Ceramic Insulating Sheet High Hardness Excellent Wear Resistance MOS Transistor IGBT Cooling Pad with 3.7mm Hole : Industrial & Scientific