Voltlog #195 – Is Thermal Adhesive Tape Any Good?

Welcome to a new voltlog, today we’re gonna be testing and comparing thermally conductive double sided tape to other solutions like thermally conductive adhesive, silicone pads, or even regular double sided tape to see how effective these solutions are for transferring heat between an IC and the heatsink.

To produce the heat I’m gonna use a small analog electronic load circuit, which will be set for a certain current let’s say 200mA and in theory should produce the same amount of heat for each run. Then we’re going to insert the different type of materials between the heatsink and the IC and we’re gonna measure the temperature of the IC and the temperature of the heatsink. As you can see I have a thermocouple glued to one side of the heatsink with thermally conductive adhesive and another thermocouple glued to this TO247 style transistor that’s producing the heat.

I don’t have a particularly good way of testing this but my plan is to heat the transistor to a stable temperature while the heatsink is kept at room temperature. Then I’m gonna connect the two bodies and measure the time it takes for the heatsink to reach the same temperature or a certain value, close enough. Then repeat the test with a different material and compare the values. If that time span is shorter or longer will depend on the thermal resistance between the body of the transistor and the heatsink and that is highly dependent on the material used between them.

Voltlog #193 – InTheMail

Hello everyone and welcome to a new InTheMail the series that will touch both your passion for electronics and your bank account at the same time.

In the video I am showing the following items for which you can find links in the video description on the youtube page:

  • TS100 soldering iron tip TS-BC2
  • 0.4mm Brass Nozzle 3D Printing
  • 0.4mm Stainless Steel Nozzle 3D Printing
  • Cabinet LED light
  • Rotary Encoder
  • Soft Protective Pouch
  • M3 x 40mm screw
  • M4 x 8mm screw
  • Double Sided Thermal Conductive Adhesive Tape
  • CAN SPI Transceiver Module
  • Lichee PI Nano ARM9 Computer Module
  • 24 pin Flat Flex Connector 0.5mm pitch