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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
    FK 266 MI 220 O TO 220

    FK 266 MI 220 O TO 220

    Fans, Blower, Thermal Management

    Fischer Elektronik

    1,000
    RFQ
    FK 266 MI 220 O TO 220

    Datasheet

    FK 266 Bulk Active Board Level TO-220 Clip Rectangular 1.024" (26.00mm) 0.906" (23.00mm) - 0.331" (8.40mm) 3.6W - 22.20°C/W Copper -
    FK 270 MI 220 V TO 220

    FK 270 MI 220 V TO 220

    Fans, Blower, Thermal Management

    Fischer Elektronik

    1,000
    RFQ
    FK 270 MI 220 V TO 220

    Datasheet

    FK 270 Bulk Active Board Level, Vertical TO-220 Clip and Solder Pin Rectangular 1.181" (30.00mm) 0.906" (23.00mm) - 0.606" (15.40mm) 3.9W - 20.40°C/W Copper -
    SK 420 37,5 SA

    SK 420 37,5 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 420 37,5 SA

    Datasheet

    SK 420 Bulk Active Board Level, Extrusion - - Rectangular 1.476" (37.50mm) 1.575" (40.00mm) - 0.315" (8.00mm) 11.43W @ 80°C 2.17°C/W 7°C/W Aluminum Black Anodized
    SK 420 75 AL

    SK 420 75 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 420 75 AL

    Datasheet

    SK 420 Bulk Active Board Level, Extrusion - - Rectangular 2.953" (75.00mm) 1.575" (40.00mm) - 0.315" (8.00mm) 10.2W @ 80°C 2.17°C/W 7.84°C/W Aluminum -
    SK 427 50 AL

    SK 427 50 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 427 50 AL

    Datasheet

    SK 427 Bulk Active Board Level, Extrusion - - Rectangular 1.969" (50.00mm) 2.000" (50.80mm) - 0.315" (8.00mm) 10.2W @ 80°C 2.17°C/W 7.84°C/W Aluminum -
    SK 420 37,5 ME

    SK 420 37,5 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 420 37,5 ME

    Datasheet

    SK 420 Bulk Active Board Level, Extrusion - - Rectangular 1.476" (37.50mm) 1.575" (40.00mm) - 0.315" (8.00mm) 10.39W @ 80°C 2.17°C/W 7.7°C/W Aluminum Natural Anodized
    SK 145 25 ME TO 220

    SK 145 25 ME TO 220

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 145 25 ME TO 220

    Datasheet

    SK 145 Bulk Active Board Level, Extrusion TO-220 - Rectangular 0.984" (25.00mm) 1.142" (29.00mm) - 0.472" (12.00mm) 5.39W @ 80°C 4.19°C/W 14.85°C/W Aluminum Natural Anodized
    SK 400 37,5 ME

    SK 400 37,5 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 400 37,5 ME

    Datasheet

    SK 400 Bulk Active Board Level, Extrusion - - Rectangular 1.476" (37.50mm) 1.299" (33.00mm) - 0.394" (10.00mm) 10.54W @ 80°C 2.14°C/W 7.59°C/W Aluminum Natural Anodized
    SK 400 37,5 SA

    SK 400 37,5 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 400 37,5 SA

    Datasheet

    SK 400 Bulk Active Board Level, Extrusion - - Rectangular 1.476" (37.50mm) 1.299" (33.00mm) - 0.394" (10.00mm) 11.59W @ 80°C 2.14°C/W 6.9°C/W Aluminum Black Anodized
    SK 550 100 AL

    SK 550 100 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 550 100 AL

    Datasheet

    SK 550 Bulk Active Board Level, Extrusion - - Rectangular 3.937" (100.00mm) 1.142" (29.00mm) - 0.453" (11.50mm) 8.93W @ 80°C 2.48°C/W 8.96°C/W Aluminum -
    SK 574 37,5 AL

    SK 574 37,5 AL

    Extruded Heatsink for lock-in re

    Fischer Elektronik

    1,000
    RFQ
    SK 574 37,5 AL

    Datasheet

    SK 574 Bulk Active Board Level, Extrusion - - Rectangular 1.476" (37.50mm) 1.273" (32.34mm) - 1.102" (28.00mm) 16.81W @ 80°C 1.32°C/W 4.76°C/W Aluminum -
    SK 586 37,5 AL

    SK 586 37,5 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 586 37,5 AL

    Datasheet

    SK 586 Bulk Active Board Level, Extrusion - - Rectangular 1.476" (37.50mm) 0.315" (8.00mm) - 0.236" (6.00mm) 2.86W @ 80°C 7.75°C/W 28°C/W Aluminum -
    SK 177 75 AL

    SK 177 75 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 177 75 AL

    Datasheet

    SK 177 Bulk Active Board Level, Extrusion - - Rectangular 2.953" (75.00mm) 1.100" (27.95mm) - 0.600" (15.24mm) 12.76W @ 80°C 1.74°C/W 6.27°C/W Aluminum -
    SK 145 25 SA TO 220

    SK 145 25 SA TO 220

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 145 25 SA TO 220

    Datasheet

    SK 145 Bulk Active Board Level, Extrusion TO-220 - Rectangular 0.984" (25.00mm) 1.142" (29.00mm) - 0.472" (12.00mm) 5.93W @ 80°C 4.19°C/W 13.5°C/W Aluminum Black Anodized
    SK 78 37,5 AL

    SK 78 37,5 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 78 37,5 AL

    Datasheet

    SK 78 Bulk Active Board Level, Extrusion - - Rectangular 1.476" (37.50mm) 2.362" (60.00mm) - 0.591" (15.00mm) 15.87W @ 80°C 1.4°C/W 5.04°C/W Aluminum -
    SK 561 100 AL

    SK 561 100 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 561 100 AL

    Datasheet

    SK 561 Bulk Active Board Level, Extrusion - - Rectangular 3.937" (100.00mm) 1.100" (27.95mm) - 0.315" (8.00mm) 6.49W @ 80°C 3.41°C/W 12.32°C/W Aluminum -
    SK 576 25 AL

    SK 576 25 AL

    Extruded Heatsink for lock-in re

    Fischer Elektronik

    1,000
    RFQ
    SK 576 25 AL

    Datasheet

    SK 576 Bulk Active Board Level, Extrusion - - Rectangular 0.984" (25.00mm) 0.984" (25.00mm) - 1.772" (45.00mm) 17.02W @ 80°C 1.3°C/W 4.7°C/W Aluminum -
    SK 631 25 AL

    SK 631 25 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 631 25 AL

    Datasheet

    SK 631 Bulk Active Board Level, Extrusion - - Rectangular 0.984" (25.00mm) 0.748" (19.00mm) - 0.236" (6.00mm) 2.93W @ 80°C 7.56°C/W 27.33°C/W Aluminum -
    SK 674 50 SA

    SK 674 50 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 674 50 SA

    Datasheet

    SK 674 Bulk Active Board Level, Extrusion - - Rectangular 1.969" (50.00mm) 0.250" (6.35mm) - 0.189" (4.80mm) 2.86W @ 80°C 8.68°C/W 28°C/W Aluminum Black Anodized
    SK 674 50 ME

    SK 674 50 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 674 50 ME

    Datasheet

    SK 674 Bulk Active Board Level, Extrusion - - Rectangular 1.969" (50.00mm) 0.250" (6.35mm) - 0.189" (4.80mm) 2.6W @ 80°C 8.68°C/W 30.8°C/W Aluminum Natural Anodized
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