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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
    SAR45AS-35MM

    SAR45AS-35MM

    EXTRUDED HEATSINK 29X35MM

    Sarnikon

    500
    RFQ
    SAR45AS-35MM

    Datasheet

    45AS Bulk Active Board Level - PC Pin Rectangular, Fins 1.378" (35.00mm) 1.142" (29.00mm) - 0.453" (11.50mm) - - - Aluminum Black Anodized
    SK 522 15 ME

    SK 522 15 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 522 15 ME

    Datasheet

    SK 522 Bulk Active Board Level, Extrusion - - Rectangular 0.591" (15.00mm) 0.496" (12.60mm) - 0.256" (6.50mm) 2.86W @ 80°C 7.75°C/W 28°C/W Aluminum Natural Anodized
    SK 549 37,5 AL

    SK 549 37,5 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 549 37,5 AL

    Datasheet

    SK 549 Bulk Active Board Level, Extrusion - - Rectangular 1.476" (37.50mm) 1.378" (35.00mm) - 0.394" (10.00mm) 11.9W @ 80°C 1.86°C/W 6.72°C/W Aluminum -
    SK 521 25 SA

    SK 521 25 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 521 25 SA

    Datasheet

    SK 521 - Active Board Level, Extrusion - - Rectangular 0.984" (25.00mm) 0.602" (15.30mm) - 0.315" (8.00mm) 3.83W @ 80°C 6.48°C/W 20.9°C/W Aluminum Black Anodized
    SK 565 50 SA

    SK 565 50 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 565 50 SA

    Datasheet

    SK 565 Bulk Active Board Level, Extrusion - - Rectangular 1.969" (50.00mm) 0.394" (10.00mm) - 0.394" (10.00mm) 2.99W @ 80°C 8.31°C/W 26.8°C/W Aluminum Black Anodized
    SK 521 75 AL

    SK 521 75 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 521 75 AL

    Datasheet

    SK 521 Bulk Active Board Level, Extrusion - - Rectangular 2.953" (75.00mm) 0.602" (15.30mm) - 0.315" (8.00mm) 3.42W @ 80°C 6.48°C/W 23.41°C/W Aluminum -
    SK 476 75 AL

    SK 476 75 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 476 75 AL

    Datasheet

    SK 476 Bulk Active Board Level, Extrusion - - Rectangular 2.953" (75.00mm) 0.827" (21.00mm) - 0.236" (6.00mm) 3.4W @ 80°C 6.51°C/W 23.52°C/W Aluminum -
    SK 550 50 AL

    SK 550 50 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 550 50 AL

    Datasheet

    SK 550 Bulk Active Board Level, Extrusion - - Rectangular 1.969" (50.00mm) 1.142" (29.00mm) - 0.453" (11.50mm) 8.93W @ 80°C 2.48°C/W 8.96°C/W Aluminum -
    SK 552 75 AL

    SK 552 75 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 552 75 AL

    Datasheet

    SK 552 Bulk Active Board Level, Extrusion - - Rectangular 2.953" (75.00mm) 0.551" (14.00mm) - 0.394" (10.00mm) 7.29W @ 80°C 3.04°C/W 10.98°C/W Aluminum -
    SK 522 15 SA

    SK 522 15 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 522 15 SA

    Datasheet

    SK 522 Bulk Active Board Level, Extrusion - - Rectangular 0.591" (15.00mm) 0.496" (12.60mm) - 0.256" (6.50mm) 3.2W @ 80°C 7.75°C/W 25°C/W Aluminum Black Anodized
    SK 521 25 ME

    SK 521 25 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 521 25 ME

    Datasheet

    SK 521 - Active Board Level, Extrusion - - Rectangular 0.984" (25.00mm) 0.602" (15.30mm) - 0.315" (8.00mm) 3.48W @ 80°C 6.48°C/W 22.99°C/W Aluminum Natural Anodized
    SK 565 50 ME

    SK 565 50 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 565 50 ME

    Datasheet

    SK 565 Bulk Active Board Level, Extrusion - - Rectangular 1.969" (50.00mm) 0.394" (10.00mm) - 0.394" (10.00mm) 2.71W @ 80°C 8.31°C/W 29.48°C/W Aluminum Natural Anodized
    FK 227 SA L 1 TO 220

    FK 227 SA L 1 TO 220

    Fans, Blower, Thermal Management

    Fischer Elektronik

    1,000
    RFQ
    FK 227 SA L 1 TO 220

    Datasheet

    FK 227 Bulk Active Board Level TO-220 Bolt On Rectangular 0.701" (17.80mm) 1.772" (45.00mm) - 0.346" (8.80mm) 3.6W - 22.00°C/W Aluminum -
    SAR21ASX40MM

    SAR21ASX40MM

    EXTRUDED HEATSINK 21X40MM

    Sarnikon

    400
    RFQ
    SAR21ASX40MM

    Datasheet

    21AS Bulk Active Board Level - PC Pin Rectangular, Fins 1.575" (40.00mm) 0.827" (21.00mm) - 0.467" (11.85mm) - - - Aluminum Natural Anodized
    SK 448 50 AL

    SK 448 50 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 448 50 AL

    Datasheet

    SK 448 Bulk Active Board Level, Extrusion - - Rectangular 1.969" (50.00mm) 1.100" (27.95mm) - 0.492" (12.50mm) 9.52W @ 80°C 2.33°C/W 8.4°C/W Aluminum -
    SK 420 37,5 AL

    SK 420 37,5 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 420 37,5 AL

    Datasheet

    SK 420 Bulk Active Board Level, Extrusion - - Rectangular 1.476" (37.50mm) 1.575" (40.00mm) - 0.315" (8.00mm) 10.2W @ 80°C 2.17°C/W 7.84°C/W Aluminum -
    SK 563 37,5 AL

    SK 563 37,5 AL

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 563 37,5 AL

    Datasheet

    SK 563 Bulk Active Board Level, Extrusion - - Rectangular 1.476" (37.50mm) 1.457" (37.00mm) - 0.236" (6.00mm) 6.49W @ 80°C 3.41°C/W 12.32°C/W Aluminum -
    SKK 510 TO 5

    SKK 510 TO 5

    Fans, Blower, Thermal Management

    Fischer Elektronik

    1,000
    RFQ
    SKK 510 TO 5

    Datasheet

    SKK 510 Bulk Active Board Level TO-5 Clip Round - - 0.319" (8.10mm) ID, 0.500" (12.70mm) OD - 1.8W - 44.00°C/W Aluminum -
    SK 478 37,5 ME

    SK 478 37,5 ME

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 478 37,5 ME

    Datasheet

    SK 478 Bulk Active Board Level, Extrusion - - Rectangular 1.476" (37.50mm) 0.551" (14.00mm) - 0.236" (6.00mm) 2.74W @ 80°C 8.22°C/W 29.15°C/W Aluminum Natural Anodized
    SK 478 37,5 SA

    SK 478 37,5 SA

    Extruded Heatsink

    Fischer Elektronik

    1,000
    RFQ
    SK 478 37,5 SA

    Datasheet

    SK 478 Bulk Active Board Level, Extrusion - - Rectangular 1.476" (37.50mm) 0.551" (14.00mm) - 0.236" (6.00mm) 3.02W @ 80°C 8.22°C/W 26.5°C/W Aluminum Black Anodized
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