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See Product Specifications
| Part Number: | 421A |
| Category: | Fans, Thermal Management |
| Subcategory: | Thermal - Heat Sinks |
| Manufacturer: | Wakefield-Vette |
| Packaging: | Bulk |
| Product Status: | Active |
| Type: | Board Level, Extrusion |
| Package Cooled: | TO-3, DO-5, Stud Mount |
| Attachment Method: | Press Fit |
| Shape: | Rectangular, Fins |
| Length: | 3.000" (76.20mm) |
| Width: | 4.750" (120.65mm) |
| Diameter: | - |
| Fin Height: | 2.625" (66.67mm) |
| Power Dissipation @ Temperature Rise: | 50.0W @ 58°C |
| Thermal Resistance @ Forced Air Flow: | 0.70°C/W @ 250 LFM |
| Thermal Resistance @ Natural: | 1.16°C/W |
| Material: | Aluminum |
| Material Finish: | Black Anodized |
