For compact constructions close to heat sensitive components due to only slight rise of temperature on the aluminum surface.
The mounting surface is so large that heat sink compound ins not required.
Insulation: Silicone Rubber + MICANITE. The silicone is UL Recognized (UL 94 HB) to a working temperature to 220°C. Temperatures up to 300°C can be endured for shorter periods. Please download the data sheed for instructions on how to dimension the resistors.