Buy TEC1‑12703 thermoelectric cooler 40*40mm, reliable thermoelectric generation module, thermoelectric generation element & chip. High‑temperature, high power thermoelectric generator for waste‑heat recovery, industrial exhaust heat, stove & solar heat system. Support OEM & custom thermoelectric generation plate, wholesale price available. 🟧 Price List Contact Customer Service 🟦 Product PDF Spec Contact Customer Service ⬜ Certifications 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
🔷Product Drawing

🔷Basic Performance Spec
| Product Model | Chip | Max Temp Difference | Internal Resistance | Max Voltage | Max Current | Max Power | Dimensions |
|---|---|---|---|---|---|---|---|
| In APE | ΔTmax (°C) | ACR (Ω) | Umax (V) | Imax (A) | Pmax (W) | Size (mm) | |
| TEC1-12703 | K12 | 60 | 3.95 | 15.2 | 3 | 46 | 40×40×3.6 |
| K24 | 65 | 40×40×4.8 | |||||
| K36 | 70 | 40×40×6.0 |
🔷 Additional Performance Spec
| Item | Specification |
|---|---|
| Substrate | 96% Alumina 0.76mm + Oxygen‑free Copper 0.4mm (sintered process) |
| Lead Wire | Super‑soft silicone wire 22AWG / L=200mm |
| Terminal | Standard product without terminal (can be installed upon request) |
| Assembly Pressure | 4kg (0.25kg/cm²) |
| Packaging Standard | Polystyrene (PS) foam box |
| Sealing Compound | 704 silicone rubber sealant |
| Maximum Temperature Resistance | Bismuth‑tin eco‑friendly solder, melting point 138°C |
| Storage Environment | Temperature <120°C, Humidity <60% Rh |
🔷 Performance Curve

🔷 Product Overview
TEC1‑12703 Thermoelectric Cooler 40*40mm is a classic‑size semiconductor thermoelectric component. Except for active cooling function, it can also work as thermoelectric generation module. As a versatile thermoelectric generation element and thermoelectric generation chip, it can convert thermal energy into electric power. We are a professional thermoelectric generation supplier, supplying wholesale thermoelectric generator and custom thermoelectric generation plate for global OEM clients.
🔷 Product Features
🔷Product Applications
🔷 Product Structure

🔷Operation Principle
When supplied with DC power, the TEC1‑12703 thermoelectric cooler realizes heat transfer and refrigeration based on Peltier effect. Reversely, when there is a temperature difference on both sides, it follows Seebeck effect and completes thermoelectric power generation. The principle is identical to high‑power thermoelectric generator and high‑temperature thermoelectric generation module, widely used in thermoelectric generation for waste heat recovery, stove power‑generation and solar‑heat power‑generation projects.
🔷FAQ
Q1: Can TEC1‑12703 40*40mm thermoelectric cooler be used for thermoelectric generation?
A1: Yes. It can work as thermoelectric generation module, thermoelectric generation element and thermoelectric generation chip to generate power by temperature difference.
Q2: Do you supply high‑power & large‑size thermoelectric generation module like 100x100?
A2: Sure, we can provide 100x100 thermoelectric generation module, large‑size thermoelectric generation element and high‑power thermoelectric generator.
Q3: Can you do OEM thermoelectric generation module or custom thermoelectric generation plate?
A3: Yes, we are a reliable thermoelectric generation supplier, wholesale thermoelectric generator and accept OEM & custom‑made service.
Q4: What projects fit your thermoelectric generation parts?
A4: They are suitable for thermoelectric generation for waste heat recovery, thermoelectric generator for industrial exhaust heat, thermoelectric power generation for stove and thermoelectric generation for solar heat system.
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