| Photo | Mfr. Part # | Availability | Quantity | Datasheet | Series | Packaging | Product Status | Type | Package Cooled | Attachment Method | Shape | Length | Width | Diameter | Fin Height | Power Dissipation @ Temperature Rise | Thermal Resistance @ Forced Air Flow | Thermal Resistance @ Natural | Material | Material Finish | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|   | 431KHEATSINK FOR PWR SEMI Wakefield-Vette | 2,809 |  |   Datasheet | 431 | Bulk | Active | Board Level, Extrusion | Stud Mounted Diode | Press Fit | Rectangular, Fins | 3.000" (76.20mm) | 4.750" (120.65mm) | - | 3.000" (76.20mm) | 50.0W @ 55°C | 0.40°C/W @ 250 LFM | - | Aluminum | Black Anodized | 
|   | 421FHEATSINK POWER TO-3 Wakefield-Vette | 2,121 |  |   Datasheet | 421 | Bulk | Active | Board Level, Extrusion | TO-3, DO-5, Stud Mount | Press Fit | Rectangular, Fins | 3.000" (76.20mm) | 4.750" (120.65mm) | - | 2.625" (66.67mm) | 50.0W @ 58°C | 0.70°C/W @ 250 LFM | 1.16°C/W | Aluminum | Black Anodized | 
|   | 301MHEATSINK COMPACT Wakefield-Vette | 3,773 |  |   Datasheet | 301 | Bulk | Active | Board Level, Vertical | Stud Mounted Semiconductor Cases | Press Fit | Rectangular, Fins | 2.000" (50.80mm) | 0.750" (19.05mm) | - | 2.000" (50.80mm) | 15.0W @ 70°C | 2.50°C/W @ 250 LFM | - | Aluminum Alloy | Black Anodized | 
|   | 433KHEATSINK FOR PWR SEMI Wakefield-Vette | 2,914 |  |   Datasheet | 433 | Bulk | Active | Board Level, Extrusion | Stud Mounted Diode | Press Fit | Rectangular, Fins | 5.000" (127.00mm) | 4.750" (120.65mm) | - | 3.000" (76.20mm) | 50.0W @ 42°C | 0.28°C/W @ 250 LFM | - | Aluminum | Black Anodized | 
|   | 1277145.748" WIDE X 12" FLATBACK HEATS Wakefield-Vette | 1,509 |  |   Datasheet | - | Box | Active | Top Mount, Extrusion | - | Adhesive | Rectangular, Fins | 12.000" (304.80mm) | 5.748" (146.00mm) | - | 0.905" (23.00mm) | - | - | 0.39°C/W | Aluminum | - | 
|  | 1254934.75X12" EXTRUSION 5410 XX1025 Wakefield-Vette | 3,795 |  |   Datasheet | - | Box | Active | Board Level, Extrusion | - | Bolt On | Rectangular, Fins | 12.000" (304.80mm) | 4.750" (120.65mm) | - | 2.625" (66.67mm) | - | - | 0.33°C/W | Aluminum | - | 
|   | 302NNHEATSINK COMPACT Wakefield-Vette | 3,595 |  |   Datasheet | 302 | Bulk | Active | Board Level, Vertical | Stud Mounted Semiconductor Cases | Press Fit | Rectangular, Fins | 2.000" (50.80mm) | 1.500" (38.10mm) | - | 2.000" (50.80mm) | 15.0W @ 50°C | 1.80°C/W @ 250 LFM | - | Aluminum Alloy | Black Anodized | 
|   | HSF-50-40-Y-FFANSINK 5VDC 50X50X39.5MM Wakefield-Vette | 4,653 |  |   Datasheet | HSF | Bulk | Active | Top Mount | BGA | Clip | Square, Fins | 1.969" (50.00mm) | 1.969" (50.00mm) | - | 1.555" (39.50mm) | - | - | 0.67°C/W | Aluminum Alloy | Black Anodized | 
|   | HSF-55-45-Y-FFANSINK 12VDC 55X55X45.1MM Wakefield-Vette | 1,089 |  |   Datasheet | HSF | Bulk | Active | Top Mount | BGA | Clip | Square, Fins | 2.165" (55.00mm) | 2.165" (55.00mm) | - | 1.776" (45.10mm) | - | - | 0.51°C/W | Aluminum Alloy | Black Anodized | 
|   | 435AAAAHEAT SINK, B4547AAAA REV Wakefield-Vette | 3,723 |  | - | - | Bulk | Active | - | - | - | - | - | - | - | - | - | - | - | - | - |