BOARD LEVEL HEAT SINK
| Part | Thermal Resistance @ Natural | Thermal Resistance @ Forced Air Flow | Material Finish | Type | Attachment Method | Fin Height [z] | Fin Height [z] | Package Cooled | Power Dissipation @ Temperature Rise | Width [x] | Width [x] | Material | Shape | Length | Length | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Boyd Laconia, LLC  | 6.2 °C/W  | 2.5 °C/W  400 LFM  | Black Anodized  | Board Level  | Bolt On  | 0.75 in  | 19.05 mm  | TO-3  | 4 W  30 °C  | 45.97 mm  | 1.81 in  | Aluminum  | Pin Fins  Square  | 1.81 "  | 45.97 mm  |