The 3223-07FR-43 from Bergquist is a fibreglass based silicone pad.
• Suitable for clip mounted TO-220 packages, or screw mounted TO-220
• Clean, grease-free and flexible
• 0.45°C
• W thermal resistance
• Electrically isolating to 3.5kV (min)
• Silicon rubber
• fibreglass
• -60°C to +180°C operating temperature
• 0.18mm thickness