515.5 28.728.4 Case:Epoxy Case with Heat Sink Interally MIL-STD-202,Method 208 Polarity:As Marked on Body W eight:20grams(approx) Mounting Position Bolt Down on Heatsink With Silicone Thermal Compound Between Bright and Mounting Surface for Maximum Heat Transfer Effciency Mounting Torque:20 in . Marking:Type Number