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Initial testing

A project log for Hacking PTC Heater for SMD Soldering

PTC Heaters are cheaply available aluminum encased temperature controlled systems perfect for hot plate soldering.

analog-twoAnalog Two 05/03/2016 at 21:380 Comments

I performed 3 tests today

  1. Soldering 0805 and 0402 components to a throwaway PCB board
  2. Soldering a 28 pin TSSOP to a breakout
  3. Desoldering components from an existing board

For the soldering tests, I did not have a stencil available so I just sloppily place paste directly from the tube. Even so, the solder wicked its way to the pads and I was able to solder very small parts without tombstoning. The soldering time was about 90 seconds to reflow.

For the desoldering test, I used a non function MSP430 launchpad. As the board exceeded the size of the heater, I put pressure on the board against the heater. It took about 2-3 minutes until I was able to remove the TUSB and the large MSP430 chip.

The tests show that the self regulating behaviour of the PTC heater works very well for hot plate soldering. I did not require a controller or arduino of any kind to get results!

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