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    Manufacturer 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

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    Photo Mfr. Part # Availability Price 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
    SK 631 1000 SA

    SK 631 1000 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 631 1000 SA

    Datasheet

    SK 631 Bulk Active Board Level, Extrusion - - Rectangular 39.370" (1000.00mm) 0.748" (19.00mm) - 0.236" (6.00mm) 3.28W @ 80°C 7.56°C/W 24.4°C/W Aluminum Black Anodized
    SK 404 75 SA

    SK 404 75 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 404 75 SA

    Datasheet

    SK 404 Bulk Active Board Level, Extrusion - - Rectangular 2.953" (75.00mm) 6.299" (160.00mm) - 1.575" (40.00mm) 86.07W @ 105°C 0.38°C/W 1.22°C/W Aluminum Black Anodized
    SK 663 100 ME

    SK 663 100 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 663 100 ME

    Datasheet

    SK 663 Bulk Active Board Level, Extrusion - - Rectangular 3.937" (100.00mm) 2.992" (76.00mm) - 1.043" (26.50mm) 24.24W @ 80°C 0.93°C/W 3.3°C/W Aluminum Natural Anodized
    SK 404 75 ME

    SK 404 75 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 404 75 ME

    Datasheet

    SK 404 Bulk Active Board Level, Extrusion - - Rectangular 2.953" (75.00mm) 6.299" (160.00mm) - 1.575" (40.00mm) 78.36W @ 105°C 0.38°C/W 1.34°C/W Aluminum Natural Anodized
    SK 631 1000 ME

    SK 631 1000 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 631 1000 ME

    Datasheet

    SK 631 Bulk Active Board Level, Extrusion - - Rectangular 39.370" (1000.00mm) 0.748" (19.00mm) - 0.236" (6.00mm) 2.98W @ 80°C 7.56°C/W 26.84°C/W Aluminum Natural Anodized
    SK 645 50 SA

    SK 645 50 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 645 50 SA

    Datasheet

    SK 645 Bulk Active Board Level, Extrusion - - Rectangular 1.969" (50.00mm) 3.740" (95.00mm) - 2.756" (70.00mm) 51.61W @ 80°C 0.48°C/W 1.55°C/W Aluminum Black Anodized
    SK 645 50 ME

    SK 645 50 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 645 50 ME

    Datasheet

    SK 645 Bulk Active Board Level, Extrusion - - Rectangular 1.969" (50.00mm) 3.740" (95.00mm) - 2.756" (70.00mm) 46.78W @ 80°C 0.48°C/W 1.71°C/W Aluminum Natural Anodized
    SK 90 50 SA

    SK 90 50 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 90 50 SA

    Datasheet

    SK 90 Bulk Active Board Level, Extrusion - - Rectangular 1.969" (50.00mm) 7.480" (190.00mm) - 1.969" (50.00mm) 131.25W @ 105°C 0.25°C/W 0.8°C/W Aluminum Black Anodized
    SK 90 50 ME

    SK 90 50 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 90 50 ME

    Datasheet

    SK 90 Bulk Active Board Level, Extrusion - - Rectangular 1.969" (50.00mm) 7.480" (190.00mm) - 1.969" (50.00mm) 119.32W @ 105°C 0.25°C/W 0.88°C/W Aluminum Natural Anodized
    SK 455 75 AL SSR 1

    SK 455 75 AL SSR 1

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 455 75 AL SSR 1

    Datasheet

    SK 455 Bulk Active Board Level, Extrusion SSR-1 - Rectangular 2.953" (75.00mm) 1.772" (45.00mm) - 3.150" (80.00mm) 44.69W @ 80°C 0.5°C/W 1.79°C/W Aluminum -
    SK 455 75 AL SSR 4 SSR 4

    SK 455 75 AL SSR 4 SSR 4

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 455 75 AL SSR 4 SSR 4

    Datasheet

    SK 455 Bulk Active Board Level, Extrusion SSR-4 - Rectangular 2.953" (75.00mm) 1.772" (45.00mm) - 3.150" (80.00mm) 44.69W @ 80°C 0.5°C/W 1.79°C/W Aluminum -
    SK 421 100 ME

    SK 421 100 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 421 100 ME

    Datasheet

    SK 421 Bulk Active Board Level, Extrusion - - Rectangular 3.937" (100.00mm) 6.575" (167.00mm) - 0.591" (15.00mm) 54.4W @ 105°C 0.54°C/W 1.93°C/W Aluminum Natural Anodized
    SK 421 100 SA

    SK 421 100 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 421 100 SA

    Datasheet

    SK 421 Bulk Active Board Level, Extrusion - - Rectangular 3.937" (100.00mm) 6.575" (167.00mm) - 0.591" (15.00mm) 60W @ 105°C 0.54°C/W 1.75°C/W Aluminum Black Anodized
    SK 453 75 SA SSR 1

    SK 453 75 SA SSR 1

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 453 75 SA SSR 1

    Datasheet

    SK 453 Bulk Active Board Level, Extrusion SSR-1 - Rectangular 2.953" (75.00mm) 1.772" (45.00mm) - 2.362" (60.00mm) 42.11W @ 80°C 0.59°C/W 1.9°C/W Aluminum Black Anodized
    SK 453 75 ME SSR 1

    SK 453 75 ME SSR 1

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 453 75 ME SSR 1

    Datasheet

    SK 453 Bulk Active Board Level, Extrusion SSR-1 - Rectangular 2.953" (75.00mm) 1.772" (45.00mm) - 2.362" (60.00mm) 38.28W @ 80°C 0.59°C/W 2.09°C/W Aluminum Natural Anodized
    SK 124 100 ME

    SK 124 100 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 124 100 ME

    Datasheet

    SK 124 Bulk Active Board Level, Extrusion - - Rectangular 3.937" (100.00mm) 5.512" (140.00mm) - 1.299" (33.00mm) 63.64W @ 105°C 0.46°C/W 1.65°C/W Aluminum Natural Anodized
    SK 412 75 AL

    SK 412 75 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 412 75 AL

    Datasheet

    SK 412 Bulk Active Board Level, Extrusion - - Rectangular 2.953" (75.00mm) 6.417" (163.00mm) - 1.575" (40.00mm) 93.75W @ 105°C 0.31°C/W 1.12°C/W Aluminum -
    SK 124 100 SA

    SK 124 100 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 124 100 SA

    Datasheet

    SK 124 Bulk Active Board Level, Extrusion - - Rectangular 3.937" (100.00mm) 5.512" (140.00mm) - 1.299" (33.00mm) 70W @ 105°C 0.46°C/W 1.5°C/W Aluminum Black Anodized
    SK 100 150 AL

    SK 100 150 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 100 150 AL

    Datasheet

    SK 100 Bulk Active Board Level, Extrusion - - Rectangular 5.906" (150.00mm) 2.598" (66.00mm) - 1.575" (40.00mm) 35.56W @ 80°C 0.62°C/W 2.25°C/W Aluminum -
    SK 148 100 SA

    SK 148 100 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 148 100 SA

    Datasheet

    SK 148 Bulk Active Board Level, Extrusion - - Rectangular 3.937" (100.00mm) 5.197" (132.00mm) - 1.929" (49.00mm) 84W @ 105°C 0.39°C/W 1.25°C/W Aluminum Black Anodized
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