Specifications
Product Details
The TEC1-12703 is a high-performance thermoelectric cooler module designed for effective temperature control in various electronic applications. Ideal for projects requiring efficient cooling or heating, this module operates on a simple Peltier effect, allowing quick temperature modulation.
Key Features:
- Rapid heating and cooling capabilities with a maximum temperature difference of 65°C.
- Operates on a 12V power supply with a rated current of 3A, delivering a cooling capacity of 29.7W.
- Simple installation process with clear polarity (red for positive, black for negative) and easy integration with existing systems.
- Fitted with 6-inch insulated leads
- Robust construction with a compact design (40mm x 40mm x 4.6mm) for versatile use in tight spaces.
- These devices must be used in conjunction with a heat sink to avoid burned.
Note
- If both sides of the cooling sheet are hot, the reason is that there is no heat dissipation or poor heat dissipation, which leads to the accumulation of heat on the hot surface and cannot be dispersed, leading to the transfer of heat to the cold surface, which will lead to the heating on both sides. So in the process of electricity use must pay attention to the heat dissipation, otherwise it is easy to damage the refrigeration sheet.

Technical Specifications:
TEC1-12703
- Rated Voltage: 12V
- Rated Current: 3A
- Cooling Capacity: 29.7W
- Maximum Temperature Difference: 65°C
- Dimensions: 40mm x 40mm x 4.6mm
- Weight: 22.70g
- Polarity: Red (positive), Black (negative)

TEC1-12705
- Dimensions: 40*40*3.8mm Component logarithm 127
- Wire specification: lead length 100±5mm RV standard single lead 5mm tin
- Internal resistance: 2.4~2.7Ω (ambient temperature 23±1℃, 1kHz AC test)
- Maximum temperature difference: △Tmax(QC =0) above 61℃.
- Operating current: IMAX =5 (when rated voltage starts)
- Rated voltage: DC12V (Vmax: 15.5V)
- Refrigerating power: QCmax 45W
- Assembly pressure: 85N/cm2
- Working environment: temperature range -55℃ ~ 83℃ (too high ambient temperature will directly affect the refrigeration efficiency)
- Packaging process: around standard 704 silicone rubber seal
- Packing standard: foam box packing, storage condition ambient temperature -10℃ ~ 40℃
- Storage condition: -40~60℃

TEC1-12706
- External dimensions: 40 * 40 * 3.75mm
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Internal resistance: 2.1 ~ 2.4 (ambient temperature of 23 ± 1 'C, 1kHZ Ac test)
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The maximum temperature difference: Tmax (Qc = 0) above 59 'C.
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Working current: Imax = 4.3-4.6A (rated at 12V)
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Rated voltage: 12V (Vmax: 15V starting current 5.8A)
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Cooling power: Qcmax 55W
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Working environment: temperature range -55 'C ~ 83'C (high ambient temperature drop directly affect the cooling efficiency)


