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Haldzemo TEC1-12706 Semiconductor Refrigeration Tablets
Model: TEC1-12706, Size: 40*40*3.5mm, Weight: 22g
Working Current: 3A (rated 12V), Refrigeration Power: Qcmax 30W
The side printed with TEC1-12706 is the cooling side, another is the heating side.
Red wire is positive, black wire is negative. Test method:
Install the red and black wires of the refrigeration tablet on both ends of 1 cell battery, if you can feel one side is slightly cold and one side is slightly hot, it means that the refrigeration tablet is good!
Note: Please make sure you have installed with a heat radiator on the heating side. Otherwise the overheating will burn it out. When you installing the radiator, make sure to scribble some thermal grease on the surface.
Description
Model: TEC1-12706
Size: 40*40*3.5mm
Weight: 22g
Color: White
Working Current: 3A (rated 12V)
Refrigeration Power: Qcmax 30W
Cable Length: 30cm
Storage Conditions: -40℃ ~ 60℃
Operating temperature: -55℃～83℃
Vine Customer
Reviewed in the United States on June 5, 2024
These devices are the workhorse between those stove-top fans that require no batteries or the plug-in coolers that you use in the car to keep stuff cold. The Peltier chip (white square) will become cold on one side and hot on the other when a current is applied to the wires. In the experiment I did to show this pictures 2-4 I connected 2 chips in parallel with the hot side down on one of them. Pictures 3-4 show the temperature differential between the hot and cold of each chip.This could be used to build a drink cooler, or supply electricity wherever there is a heat differential. Put a heat source on one side and a heat sink fin on the other and it will generate power. The larger the differential the more power comes out.Fantastic kit for science experiments or for home creations.
Jeff B
Reviewed in the United States on June 15, 2024
To test one of these, I put it on a very heavy copper heat sink, and connected it to a bench power supply. At 1A current, the cold side quickly dropped to about 60° f. At 2A, it dropped to 50° f. At 3A, it dropped as low as 17° f, then the temperature began creeping back up as the hot side got hotter. To test past this point, I would need to do a semi-permanent installation with thermal grease and fans or liquid circulation. I'm not quite ready to do that yet.I'm deducting one star because there is no technical data provided with these modules. Looking up the part number online seems to indicate modules that can handle more power than the description claims for these. I'm reluctant to feed these more power than the description specifies. At this power level, though, they definitely move heat.
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