Overview
The TEC1-12704 is a high-quality thermoelectric cooling module designed for applications that require a steady, reliable temperature drop without the extreme heat waste of higher-amperage plates. Because it draws 4 Amps, it is perfectly matched for standard 12V 5A power supplies, leaving a safe 20% overhead for the rest of your circuit. It is widely used in medical devices, high-end scientific instruments, and custom-built cooling solutions for overclocked PC components.
Key Features
Balanced Performance: Provides approximately 35-40W of cooling power while remaining easier to keep stable than 6A+ modules.
Standard 40mm Fit: Universal size (40 times 40 mm) ensures compatibility with almost all Peltier water blocks and heatsink kits.
High Efficiency: Better “Coefficient of Performance” (COP) than larger modules, meaning you get more cooling per watt of electricity used.
Quiet & Eco-Friendly: Solid-state design uses no moving parts and zero refrigerants or CFCs.
Long Lifespan: Designed for thousands of hours of operation when paired with a proper heat dissipation system.
Technical Specifications
| Feature | Specification |
| Model | TEC1-12704 |
| Operating Voltage | 12V DC (Vmax: 15.4V) |
| Max Current (Imax) | 4.0 Amperes |
| Cooling Power (Qcmax) | ~35 – 40 Watts |
| Temperature Diff (Tmax) | ~66°C to 68°C |
| Internal Resistance | 3.0 – 3.3 Ω |
| Dimensions | 40mm x 40mm x 3.8mm |
| Connection | 150mm Red (+) and Black (-) Wires |
Ideal Applications
Medical Cooling: Keeping insulin or vaccines at a precise temperature.
GPU/Northbridge Cooling: Preventing hotspots on high-performance motherboards.
Miniature Dehumidifiers: Creating small water-collection systems for storage boxes.
Scientific Lab Equipment: Stabilizing temperatures for chemical and biological reactions.
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