Created with Sketch. Created with Sketch.
Toggle menu
1-800-901-2395

Shop by Category

  • 0.601"
  • 1.000"
  • 1.813"
  • 2.000" Round
  • 2.000" Serrated Fin
  • 2.079"
  • 2.425"
  • 3.500"
  • 3.945"
  • 4.230"
  • 4.600" Serrated Fin
  • 4.850"
  • 4.900"
  • 5.000" SSR Heatsink
  • 5.375"
  • 5.886"
  • 6.080"
  • 7.280"
  • 7.984"
  • 8.000"
  • 8.460"
  • 8.000" Serrated Fin
  • 10.000"
  • 10.080"
  • 12.000"

    • Shop by Brand

  • HeatsinkUSA
  • View all Brands
  • 3.500" Wide Extruded Aluminum Heatsink

    • 3.500" Wide Extruded Aluminum Heatsink

    $1.36 - $102.00
    (19 reviews) Write a Review
    SKU:
    3.500

    Product Description

    Extruded Aluminum Heatsink
    Alloy:  6063-T5
    Width: 3.500"
    Fin Height: .75"
    Base: .300"
    C/W/3": approximately 2.50
    Weight per Inch: .15

     

    All of our heatsink extrusions are sold by the inch.  To order a more specific length, for example a length of 5.5", you would choose 6" and and indicate your desired cut length in the "Specific cut length" field above.  If you have any questions, please give us a call or send us an email, we would be happy to assist you.

     

    Product Videos

    Custom Field

    Product Reviews

    Write a Review

    19 Reviews Hide Reviews Show Reviews

    • 5
      3.5 heatsink

      Posted by Unknown on 10th Jun 2019

      as usual, great product and fast shipping

    • 5
      Quality and Shippin

      Posted by Jeff Shaw on 30th Nov 2018

      Receive heat sink quickly. Cut to length perfectly. all smooth edges.

    • 5
      3.5 " extruded sink

      Posted by Pat on 16th Nov 2018

      Great service, very personal, fast ship!.. clean parts and nice clean cuts

    • 4
      heatsink

      Posted by Gerard Guarneri on 25th Jul 2018

      Even though it is a 3 inch unit, the photo on your website does not clearly depict all three dimensions of the unit. Namely, the height dimension.

    • 5
      Good product / lousy shipping

      Posted by Scott Eaton on 20th Jan 2018

      Took over a week to deliver a pair of 24" sinks roughly 40miles via USPS. Not the fault of HeatSinkUSA - their products and service are the best. Just don't use USPS.

    • 5
      Excellent quality and service

      Posted by A. Robb on 29th Feb 2016

      10 x the product and service you will ever get from China.The extrusions are flawless and the service can't be beat !!!

    • 5
      Great Shopping Experience

      Posted by Unknown on 14th Jan 2016

      Item as described, fair price, and arrived early

    • 5
      Great profile

      Posted by SaratogaLED on 28th Aug 2015

      Nice thick base, passive cooling friendly and gives good spread between COBs. Great quality and service from HeatsinkUSA, as always. Thank you!

    • 5
      Excellent Quality

      Posted by John Mackenzie on 27th Jul 2015

      Was extremely pleased with this purchase. Needed 4 in order to use for an LED project for growing herbs, I'll share a link when assembled and final, used thermal pad (TIM) - the surface was in excellent shape, no re-surfacing required.

      Thank you and I've purchased a 12" as well for a similar project for Cucumbers and short duration vegetables which fruit. It will be awhile prior to having the project underway, but as soon as it is available. I'll post this link as well.