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The TEC1-04901 is a miniature semiconductor cooling module specifically designed for ultra-low power consumption and ultra-precise temperature control. It measures 20 × 20 mm and is available in three chip configurations—K16, K26, K36 crystal configurations, with thicknesses of 4.0 mm, 5.0 mm, and 6.0 mm, corresponding to maximum cooling temperature differences of 55°C, 60°C, and 65°C (under a hot-end temperature of Th=40°C). 🟧 Price List Contact Customer Service 🟦 Certifications Contact Customer Service ⬜ Product PDF Spec Contact Customer Service 🟪 Contact customer Contact Customer Service 🟨 MOQ:1 Pcs 🟥 Fast Delivery:2-15 Days 🟩 Source Factory：Online Factory Video 🟫 Multiple Payment Methods：T/T|PayPal|Alipay ⬛ Pre|After Service：+86 13377785035|xyy@kkg.tw
🔷TEC Cooler Product Drawing
🔷Thermoelectric Cooler Peltier Basic Performance Spec
| Type Mode | Chip Model | ΔTmax (°C) | ACR (Ω) | Umax (V) | Imax (A) | Pmax (W) | Size (mm) |
|---|---|---|---|---|---|---|---|
| TEC1-04901 | K16 | 55 | 3.23 | 5.8 | 1.4 | 8 | 20×20×4.0 |
| TEC1-04901 | K26 | 60 | 3.23 | 5.8 | 1.4 | 8 | 20×20×5.0 |
| TEC1-04901 | K36 | 65 | 3.23 | 5.8 | 1.4 | 8 | 20×20×6.0 |
🔷Peltier Cooling Module Additional Performance Spec
| Parameter | Specification |
|---|---|
| Substrate Material | 96% alumina (0.76 mm) + oxygen-free copper (0.4 mm), sintered process |
| Lead Wire Specification | Silicone wire, 26 AWG, L = 100 mm |
| Terminal Specification | Not included as standard; available upon request |
| Assembly Pressure | 1.0 kg (0.25 kg/cm²) |
| Packaging Standard | Polystyrene (PS) foam box |
| Sealant Material | 704 silicone rubber sealant |
| Maximum Temperature Resistance | Bismuth-tin eco-friendly solder, melting point 138°C |
| Storage Environment | Temperature < 120°C, Humidity < 60% Rh |
🔷Peltier Effect CoolerPeltiers Performance Curve
🔷Cooler with Peltier Product Overview
The TEC1-04901 is a miniature semiconductor cooling module specifically designed for ultra-low power consumption and ultra-precise temperature control. It measures 20 × 20 mm and is available in three chip configurations—K16, K26, K36 crystal configurations, with thicknesses of 4.0 mm, 5.0 mm, and 6.0 mm, corresponding to maximum cooling temperature differences of 55°C, 60°C, and 65°C (under a hot-end temperature of Th=40°C). This product has a maximum voltage of 5.8 V, a maximum current of only 1.4 A, a maximum cooling power of only 8 W, and an internal resistance of 3.23 Ω. This is the model with the lowest power consumption and lowest current in the entire 20×20mm product series, and it is also the only model that supports a starting cooling temperature difference of 55°C. It achieves a maximum cooling temperature difference of 65°C even at extremely low power consumption levels, offering the best coefficient of performance (COP) in the entire series. Compared to other models in the same series—such as the TEC1-04902 (2.2A/13W), TEC1-04903 (3.0A/17W), TEC1-04904 (4.0A/23W), and TEC1-04905 (5.0A/29W), the TEC1-04901 achieves a temperature difference performance comparable to that of high-power models while consuming the lowest current and power. It is the preferred temperature control solution for battery-powered devices, handheld terminals, and applications with extremely stringent power consumption requirements.
🔷Peltier Device Cooler Operation Principle
The TEC1-04901 utilizes the Peltier effect for thermoelectric cooling, and its core operating principle is consistent with that of other products in the same series. Internally, the product consists of multiple pairs of miniature P-type (Bi₂Te₃-Sb₂Te₃ hole-type) and N-type (Bi₂Te₃-Bi₂Se₃ electron-type) semiconductor grains connected in series via metal bus bars to form a thermoelectric stack, which is sandwiched between two layers of highly thermally conductive 96% alumina ceramic substrates.
When a forward DC voltage (maximum 5.8 V) is applied, the current drives holes in the P-type material and electrons in the N-type material to move in opposite directions. As the charge carriers cross the PN junction interface, an energy exchange occurs—phonon energy is absorbed at the cold junction, causing it to cool, while energy is released at the hot junction, causing it to heat up. Under the continuous drive of the electric field, heat is continuously “pumped” from the cold end to the hot end, achieving directed heat transfer.
The core distinction of the TEC1-04901 from other models in the same series lies in its design philosophy of low current and high internal resistance. This product has an operating current of only 1.4 A and an internal resistance of 3.23 Ω, which means that at the maximum power point, the Joule heat loss (I²R) is 6.3 W, the total input power is 8 W, and the effective cooling power is approximately 1.7 W (net cooling capacity after deducting Joule heat and thermal conduction losses). Although the absolute cooling capacity is not large, for micro- and nano-scale thermal loads (such as a single sensor chip or a micro-reaction chamber), a net cooling capacity of 1–2 W is sufficient to achieve a temperature reduction of 30–40°C.
At a hot-end temperature of 40°C, this product achieves a maximum temperature difference of 65°C (K36 model), meaning the cold-end temperature can reach as low as approximately -25°C. Due to extremely low power consumption and minimal heat generation at the hot end, the requirements for the heat sink are very lenient—a small extruded aluminum heat sink (20×20×10 mm) can meet basic heat dissipation needs without even requiring a fan, offering clear advantages in quiet and space-constrained environments. In constant-temperature control applications, by adjusting the PWM duty cycle via a PID algorithm or linearly regulating the current, precise control of the cold-end temperature within the range of -20°C to +80°C can be achieved, with a control accuracy of up to ±0.05°C.
🔷Peltier Module Cooler Product Show
The TEC1-03101 is the flagship ultra-low-power semiconductor cooling module in the 20×20mm series, featuring the lowest power consumption and lowest current draw. With dimensions of 20×20mm, it is available in three chip configurations—K28, K34, and K40 chip configurations, with thicknesses of 5.2 mm, 5.8 mm, and 6.4 mm (the thickest in the entire series), corresponding to maximum cooling temperature differences of 55°C, 60°C, and 65°C (under a hot-side temperature of Th=40°C). 🟧 Price List Contact Customer Service 🟦 Certifications Contact Customer Service ⬜ Product PDF Spec Contact Customer Service 🟪 Contact customer Contact Customer Service 🟨 MOQ:1 Pcs 🟥 Fast Delivery:2-15 Days 🟩 Source Factory：Online Factory Video 🟫 Multiple Payment Methods：T/T|PayPal|Alipay ⬛ Pre|After Service：+86 13377785035|xyy@kkg.tw
The TEC1-03102 is a miniature semiconductor cooling module designed for ultra-low-power, ultra-precise temperature control, and high-efficiency applications. It measures 20 × 20 mm and is available in three chip configurations—K18, K28, and K38, with thicknesses of 4.2 mm, 5.2 mm, and 6.2 mm, respectively, corresponding to maximum cooling temperature differences of 55°C, 60°C, and 65°C (under a hot-end temperature of Th=40°C). 🟧 Price List Contact Customer Service 🟦 Certifications Contact Customer Service ⬜ Product PDF Spec Contact Customer Service 🟪 Contact customer Contact Customer Service 🟨 MOQ:1 Pcs 🟥 Fast Delivery:2-15 Days 🟩 Source Factory：Online Factory Video 🟫 Multiple Payment Methods：T/T|PayPal|Alipay ⬛ Pre|After Service：+86 13377785035|xyy@kkg.tw
The TEC1-03104 is a miniature semiconductor cooling module designed for low-power, high-efficiency precision temperature control. It measures 20 × 20 mm and is available in three chip configurations—K10, K18, and K26 chip configurations, with thicknesses of 3.4 mm, 4.2 mm, and 5.0 mm, respectively, corresponding to maximum cooling temperature differences of 60°C, 65°C, and 70°C (under conditions where the hot-end temperature Th = 40°C). 🟧 Price List Contact Customer Service 🟦 Certifications Contact Customer Service ⬜ Product PDF Spec Contact Customer Service 🟪 Contact customer Contact Customer Service 🟨 MOQ:1 Pcs 🟥 Fast Delivery:2-15 Days 🟩 Source Factory：Online Factory Video 🟫 Multiple Payment Methods：T/T|PayPal|Alipay ⬛ Pre|After Service：+86 13377785035|xyy@kkg.tw
The TEC1-03106 is a miniature semiconductor cooling module designed for medium-power cooling and high-efficiency temperature control. It measures 20 × 20 mm and is available in three chip configurations—K10, K14, and K18 chip configurations, with thicknesses of 3.4 mm, 3.8 mm, and 4.2 mm, respectively, corresponding to maximum cooling temperature differences of 60°C, 65°C, and 70°C (under conditions where the hot-end temperature Th = 40°C). 🟧 Price List Contact Customer Service 🟦 Certifications Contact Customer Service ⬜ Product PDF Spec Contact Customer Service 🟪 Contact customer Contact Customer Service 🟨 MOQ:1 Pcs 🟥 Fast Delivery:2-15 Days 🟩 Source Factory：Online Factory Video 🟫 Multiple Payment Methods：T/T|PayPal|Alipay ⬛ Pre|After Service：+86 13377785035|xyy@kkg.tw
The TEC1-03108 is a miniature semiconductor cooling module designed for high-power cooling and rapid temperature control applications. It measures 20 × 20 mm and is available in three chip configurations—K10, K12, and K14 chip configurations, with thicknesses of 3.4 mm, 3.6 mm, and 3.8 mm, respectively, corresponding to maximum cooling temperature differences of 60°C, 65°C, and 70°C (under conditions where the hot-end temperature Th = 40°C). 🟧 Price List Contact Customer Service 🟦 Certifications Contact Customer Service ⬜ Product PDF Spec Contact Customer Service 🟪 Contact customer Contact Customer Service 🟨 MOQ:1 Pcs 🟥 Fast Delivery:2-15 Days 🟩 Source Factory：Online Factory Video 🟫 Multiple Payment Methods：T/T|PayPal|Alipay ⬛ Pre|After Service：+86 13377785035|xyy@kkg.tw
The TEC1-03110 is a miniature semiconductor cooling module designed for applications requiring high power density and high cooling capacity. It measures 20 × 20 mm and is available in three chip configurations—K10, K12, and K14 chip configurations, with thicknesses of 3.4 mm, 3.6 mm, and 3.8 mm, respectively, corresponding to maximum cooling temperature differences of 60°C, 65°C, and 70°C (under a hot-end temperature of Th=40°C). 🟧 Price List Contact Customer Service 🟦 Certifications Contact Customer Service ⬜ Product PDF Spec Contact Customer Service 🟪 Contact customer Contact Customer Service 🟨 MOQ:1 Pcs 🟥 Fast Delivery:2-15 Days 🟩 Source Factory：Online Factory Video 🟫 Multiple Payment Methods：T/T|PayPal|Alipay ⬛ Pre|After Service：+86 13377785035|xyy@kkg.tw
The TEC1-04502 is a miniature semiconductor cooling module designed for low-power, precision temperature control and high-efficiency cooling. It measures 20 × 20 mm and is available in three chip configurations—K10, K18, and K26 chip configurations, with thicknesses of 3.4 mm, 4.2 mm, and 5.0 mm, respectively, corresponding to maximum cooling temperature differences of 60°C, 65°C, and 70°C (under conditions where the hot-end temperature Th = 40°C). 🟧 Price List Contact Customer Service 🟦 Certifications Contact Customer Service ⬜ Product PDF Spec Contact Customer Service 🟪 Contact customer Contact Customer Service 🟨 MOQ:1 Pcs 🟥 Fast Delivery:2-15 Days 🟩 Source Factory：Online Factory Video 🟫 Multiple Payment Methods：T/T|PayPal|Alipay ⬛ Pre|After Service：+86 13377785035|xyy@kkg.tw
The TEC1-04902 is a miniature semiconductor cooling module designed specifically for ultra-low-power, precision temperature control. It measures 20 × 20 mm and is available in three chip configurations—K10, K18, and K26 configurations, with thicknesses of 3.4 mm, 4.2 mm, and 5.0 mm, respectively, corresponding to maximum cooling temperature differences of 60°C, 65°C, and 70°C (under a hot-end temperature of Th=40°C). 🟧 Price List Contact Customer Service 🟦 Certifications Contact Customer Service ⬜ Product PDF Spec Contact Customer Service 🟪 Contact customer Contact Customer Service 🟨 MOQ:1 Pcs 🟥 Fast Delivery:2-15 Days 🟩 Source Factory：Online Factory Video 🟫 Multiple Payment Methods：T/T|PayPal|Alipay ⬛ Pre|After Service：+86 13377785035|xyy@kkg.tw
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