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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 34 75 AL CB SOT 9

    SK 34 75 AL CB SOT 9

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 34 75 AL CB SOT 9

    Datasheet

    SK 34 Bulk Active Board Level, Extrusion SOT-9 - Rectangular 2.953" (75.00mm) 4.921" (125.00mm) - 2.559" 65.00mm) 85.37W @ 105°C 0.34°C/W 1.23°C/W Aluminum -
    SK 654 100 SA

    SK 654 100 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 654 100 SA

    Datasheet

    SK 654 Bulk Active Board Level, Extrusion - - Rectangular 3.937" (100.00mm) 1.378" (35.00mm) - 2.756" (70.00mm) 23.53W @ 80°C 1.05°C/W 3.4°C/W Aluminum Black Anodized
    SK 654 100 ME

    SK 654 100 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 654 100 ME

    Datasheet

    SK 654 - Active Board Level, Extrusion - - Rectangular 3.937" (100.00mm) 1.378" (35.00mm) - 2.756" (70.00mm) 21.39W @ 80°C 1.05°C/W 3.74°C/W Aluminum Natural Anodized
    SK 421 75 SA

    SK 421 75 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 421 75 SA

    Datasheet

    SK 421 Bulk Active Board Level, Extrusion - - Rectangular 2.953" (75.00mm) 6.575" (167.00mm) - 0.591" (15.00mm) 60W @ 105°C 0.54°C/W 1.75°C/W Aluminum Black Anodized
    SK 421 75 ME

    SK 421 75 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 421 75 ME

    Datasheet

    SK 421 Bulk Active Board Level, Extrusion - - Rectangular 2.953" (75.00mm) 6.575" (167.00mm) - 0.591" (15.00mm) 54.4W @ 105°C 0.54°C/W 1.93°C/W Aluminum Natural Anodized
    SK 647 100 SA

    SK 647 100 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 647 100 SA

    Datasheet

    SK 647 Bulk Active Board Level, Extrusion - - Rectangular 3.937" (100.00mm) 2.402" (61.00mm) - 1.575" (40.00mm) 40W @ 80°C 0.62°C/W 2°C/W Aluminum Black Anodized
    SK 145 1000 AL

    SK 145 1000 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 145 1000 AL

    Datasheet

    SK 145 Bulk Active Board Level, Extrusion - - Rectangular 39.370" (1000.00mm) 1.142" (29.00mm) - 0.472" (12.00mm) 8.6W @ 80°C 2.57°C/W 9.3°C/W Aluminum -
    SK 647 100 ME

    SK 647 100 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 647 100 ME

    Datasheet

    SK 647 Bulk Active Board Level, Extrusion - - Rectangular 3.937" (100.00mm) 2.402" (61.00mm) - 1.575" (40.00mm) 36.36W @ 80°C 0.62°C/W 2.2°C/W Aluminum Natural Anodized
    SK 88 75 SA

    SK 88 75 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 88 75 SA

    Datasheet

    SK 88 Bulk Active Board Level, Extrusion - - Rectangular 2.953" (75.00mm) 3.937" (100.00mm) - 1.969" (50.00mm) 76.19W @ 80°C 0.33°C/W 1.05°C/W Aluminum Black Anodized
    SK 88 75 ME

    SK 88 75 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 88 75 ME

    Datasheet

    SK 88 Bulk Active Board Level, Extrusion - - Rectangular 2.953" (75.00mm) 3.937" (100.00mm) - 1.969" (50.00mm) 68.97W @ 80°C 0.33°C/W 1.16°C/W Aluminum Natural Anodized
    SK 663 75 SA

    SK 663 75 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 663 75 SA

    Datasheet

    SK 663 Bulk Active Board Level, Extrusion - - Rectangular 2.953" (75.00mm) 2.992" (76.00mm) - 1.043" (26.50mm) 26.67W @ 80°C 0.93°C/W 3°C/W Aluminum Black Anodized
    SK 663 75 ME

    SK 663 75 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 663 75 ME

    Datasheet

    SK 663 Bulk Active Board Level, Extrusion - - Rectangular 2.953" (75.00mm) 2.992" (76.00mm) - 1.043" (26.50mm) 24.24W @ 80°C 0.93°C/W 3.3°C/W Aluminum Natural Anodized
    SK 632 1000 AL

    SK 632 1000 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 632 1000 AL

    Datasheet

    SK 632 Bulk Active Board Level, Extrusion - - Rectangular 39.370" (1000.00mm) 0.748" (19.00mm) - 0.394" (10.00mm) 3.64W @ 80°C 6.08°C/W 21.95°C/W Aluminum -
    SK 521 1000 SA

    SK 521 1000 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 521 1000 SA

    Datasheet

    SK 521 Bulk Active Board Level, Extrusion - - Rectangular 39.370" (1000.00mm) 0.602" (15.30mm) - 0.315" (8.00mm) 3.83W @ 80°C 6.48°C/W 20.9°C/W Aluminum Black Anodized
    SK 504 75 SA

    SK 504 75 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 504 75 SA

    Datasheet

    SK 504 Bulk Active Board Level, Extrusion - - Rectangular 2.953" (75.00mm) 5.906" (150.00mm) - 1.063" (27.00mm) 75W @ 105°C 0.43°C/W 1.4°C/W Aluminum Black Anodized
    SK 507 37,5 SA

    SK 507 37,5 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 507 37,5 SA

    Datasheet

    SK 507 Bulk Active Board Level, Extrusion - - Rectangular 1.476" (37.50mm) 3.543" (90.00mm) - 3.937" (100.00mm) 88.89W @ 80°C 0.28°C/W 0.9°C/W Aluminum Black Anodized
    SK 507 37,5 ME

    SK 507 37,5 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 507 37,5 ME

    Datasheet

    SK 507 Bulk Active Board Level, Extrusion - - Rectangular 1.476" (37.50mm) 3.543" (90.00mm) - 3.937" (100.00mm) 80.81W @ 80°C 0.28°C/W 0.99°C/W Aluminum Natural Anodized
    SK 504 75 ME

    SK 504 75 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 504 75 ME

    Datasheet

    SK 504 Bulk Active Board Level, Extrusion - - Rectangular 2.953" (75.00mm) 5.906" (150.00mm) - 1.063" (27.00mm) 68.18W @ 105°C 0.43°C/W 1.54°C/W Aluminum Natural Anodized
    SK 521 1000 ME

    SK 521 1000 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 521 1000 ME

    Datasheet

    SK 521 Bulk Active Board Level, Extrusion - - Rectangular 39.370" (1000.00mm) 0.602" (15.30mm) - 0.315" (8.00mm) 3.48W @ 80°C 6.48°C/W 22.99°C/W Aluminum Natural Anodized
    ALB-821AS-42

    ALB-821AS-42

    0.827'' (21mm) Wide Heatsink

    Alberko Heatsinkonline

    300
    RFQ
    ALB-821AS-42

    Datasheet

    ALB-821AS Retail Package Active Top Mount - Thermal Tape, Adhesive (Not Included) Rectangular, Fins 42.000" (1066.80mm) 0.827" (21.00mm) - 0.295" (7.50mm) - - 9.62°C/W Aluminum Alloy Unfinished
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