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Large Heatsink - Multiwatt Package

This beefy heatsink is designed to dissipate a lot of heat! The 6400BG heatsink fits TO-220, TO-218, TO-247, and Multiwatt packages - which means it's a great fit for the STA540, L298N, and all of our T-220 package voltage regulators.

Large Heatsink - Multiwatt Package Product Help and Resources

Variable Load Hookup Guide - Revised

May 25, 2018

This tutorial will show you how to assemble and use SparkFun's Variable Load board. It can be used to test stability of the power supply under various loads, battery lifetime, safety cutoffs, and other design elements of power supplies under test.

Magnetic Levitation

November 20, 2019

This tutorial will show you how to build a magnetic levitation circuit using common parts.

Understanding Thermal Resistance

May 14, 2020

Discussing what thermal resistance is, how it’s used for thermal management, and how to maximize the life of your project.

Core Skill: DIY

Whether it's for assembling a kit, hacking an enclosure, or creating your own parts; the DIY skill is all about knowing how to use tools and the techniques associated with them.

1 DIY

Skill Level: Noob - Basic assembly is required. You may need to provide your own basic tools like a screwdriver, hammer or scissors. Power tools or custom parts are not required. Instructions will be included and easy to follow. Sewing may be required, but only with included patterns.
See all skill levels


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Customer Reviews

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4 of 4 found this helpful:

My friend couldnt even kill it

I have this crazy physics friend that decided to make a plasma speaker on his own. He had a mosfet that was able to source RIDICULOUS amounts of current. He had at least 150W going through this mosfet. He was able to run his lightning arc for several minutes straight, the whole time without exceeding the max temperature of the mosfet. Now, I wouldn't recommend doing this (we got burnt on the heat sink, but the $12 mosfet was ok so its all good), but this is a durable highly effective heat sink!