Peltier Module TEC1-12706 12704 12705 12708 12710 12712 – 40x40 mm 12V

A Peltier module produces cooling without a compressor, without refrigerant, and without any moving parts: under direct current, one side cools while the other heats up. It is the heart of mini-refrigerators, beverage coolers, dehumidifiers, test benches, and any setup where you need to lower the temperature in a small volume.

Ships within 7 to 10 days.

Choose your model

How to read a model number

On a TEC1-12706: 127 is the number of thermoelectric couples, 06 is the maximum current in amperes. The higher this number, the greater the available cooling power — and the larger the heat sink on the hot side must be. The TES1-24106 operates at 24 V: it consumes half as much current for a comparable power, which is useful when the power supply or wiring is limited. The TEC2-19010 is a dual stage model, designed to achieve a greater temperature difference than a single stage module.

Key features

• No moving parts: no compressor, no gas, no vibration, no noise.
• Reversible: reverse the polarity and the cold side becomes a heating side. The same module can be used to cool or regulate temperature.
• Controllable: the power follows the current, allowing fine regulation via PWM or a thermostat.
• Standard 40 × 40 mm format: compatible with the vast majority of heat sinks, water blocks, and mounts on the market.
• Alumina ceramic and pre-sold flexible wires: direct mounting between two flat surfaces.

Applications

Mini-refrigerator and refrigerated box, beverage cooler, dehumidifier and condensation trap, cooling of a sensor, camera, or sensitive component, temperature regulation of a small volume, electronic test bench, aquariums and terrariums, auxiliary cooling for PCs, Arduino and Raspberry Pi projects.

Installation — read before connecting

• A heat sink on the hot side is mandatory, with a fan or water block. Without heat dissipation, the module heats up, no longer cools anything, and destroys itself in a few minutes.
• Thermal paste on both sides, in a thin layer. The surfaces must be flat and clean.
• Regulated direct current, never alternating current. The red wire goes to +, the black wire to −.
• Do not power it at its maximum voltage: a 12 V module is operated between 12 and 13 V. The best efficiency is obtained at around 50 to 70% of the maximum current, not at full power.
• By convention, the side bearing the model number inscription is the cold side when the red wire is at +. Check it with your finger a few seconds after powering on before permanently gluing it.
• Tighten the heat sink / module / cold plate sandwich evenly: the ceramic is brittle.
• Plan for managing condensation on the cold side as soon as you drop below the dew point: silicone seal, foam, or drainage.

Contents

1 Peltier thermoelectric module in the chosen model, pre-sold power wires. Heat sink, fan, thermal paste, and power supply are not included.

Check before ordering

Check that your power supply can provide the current of the chosen model: a TEC1-12710 requires up to 10 A at 12 V, which is about 120 W on its own. Also check the available space: the modules on this page are in the 40 × 40 mm format, with the exception of certain TEC1-12712 models that come in 50 × 50 mm. If in doubt about the exact dimensions, write to us before ordering.

Note

A Peltier module is not an air conditioner: its efficiency is modest compared to a compression system, and it consumes more for the same cooling power. In return, it is silent, compact, maintenance-free, and can be very finely regulated — this is what makes it irreplaceable for small volumes and custom setups. Ships within 7 to 10 days.