H S MARSTON 938SP-01500-A-200 Heat Sink, Extruded Range - 4, Black Anodized, 0.6 C/W, 40 mm, 160 mm, 150 mm
H S MARSTON 938SP-02000-A-200 Heat Sink, Extruded Range - 4, Black Anodized, 0.53 C/W, 40 mm, 160 mm, 200 mm