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40×40mm 3A single-stage semiconductor cooling module, suitable for standard temperature control applications, offering stable cooling and wide applicability. 🟧 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
🔷Thermoelectric Cooler's Product Drawing
Marking:
Ceramic Substrate of Peltier Cooler: Alumina
Lead Wire Length of Peltier Module: customized per customer
External Terminals of TEC Cooler: customized per customer
Front-side Printing of Thermoelectric Cooler peltier: Part Number + Date Code (YYYY/MM)
Encapsulant Materiat of Peltier Cooling Module: 704 Silicone (White)
🔷Thermoelectric Cooling Device's Product Detail
| Item | Value |
|---|---|
| Specification | TEC112703 |
| Material | Bismuth Telluride |
| Operating Voltage | 12V |
| Maximum Voltage | 15.4V |
| Maximum Current | 3A |
| Maximum Temperature Difference | 67℃ |
| Product Type | Single-stage Thermoelectric Cooler (TEC) |
| Maximum Cooling Capacity | 29.8W |
| Overall Dimensions | 40×40 mm |
| Electrical Conductivity | 850-1250 S/cm |
🔷TEC Cooler's Model Selection
| Model | Thermocouple Pairs | Umax(volts) | Imax(amps) | DTmax(°C) | Qmax(watts) | Resistor(Ω) | Length(mm) | Width(mm) |
| TEC-03102-30x6x3.25 | 31 | 3.8 | 2.2 | 67 | 4.6 | 1.37 | 30 | 6 |
| TEC-03102-30x6x3.3 | 31 | 3.8 | 2.7 | 66 | 5.7 | 1.11 | 30 | 6 |
| TEC-03104-30x6x3.3 | 31 | 3.8 | 4.3 | 66 | 8.9 | 0.71 | 30 | 6 |
| TEC-06102-30x5.7x3.1 | 61 | 7.4 | 2 | 67 | 8.1 | 3 | 30 | 5.7 |
| TEC-06503-30x7x2.55 | 65 | 7.9 | 3.4 | 67 | 15 | 1.85 | 30 | 7 |
| TEC-06302-38x7.6x3.04 | 63 | 7.6 | 2.4 | 67 | 10 | 2.59 | 38 | 7.6 |
| TEC-03102-30x8x3.8 | 31 | 3.8 | 2.9 | 67 | 6.1 | 1.03 | 30 | 8 |
| TEC-07102-30x8x2.9 | 71 | 8.6 | 2.7 | 67 | 12.7 | 2.6 | 30 | 8 |
| TEC-06502-8x40x3 | 65 | 7.9 | 2.4 | 67 | 10.7 | 2.59 | 8 | 40 |
| TEC-05304-30x9.8x3.1 | 53 | 6.4 | 4.2 | 67 | 15.1 | 1.22 | 30 | 9.8 |
| TEC-01704-10x10x3.1 | 17 | 2.1 | 4.1 | 68 | 4.7 | 0.4 | 10 | 10 |
| TEC-03101-10x10x3 | 31 | 3.8 | 1.4 | 68 | 2.9 | 2.2 | 10 | 10 |
| TEC-06303-60x10x3.7 | 63 | 7.6 | 3.4 | 67 | 14.4 | 1.81 | 60 | 10 |
| TEC-04901-12x12x2.9 | 49 | 5.9 | 1.5 | 67 | 5 | 3.15 | 12 | 12 |
| TEC-03102-15x15x4 | 31 | 3.8 | 2.5 | 66 | 5.3 | 1.19 | 15 | 15 |
| TEC-03102-15x15x3.8 | 31 | 3.8 | 2.8 | 66 | 5.9 | 1.07 | 15 | 15 |
| TEC-04904-15x15x3.1 | 49 | 5.9 | 4.2 | 67 | 13.9 | 1.13 | 15 | 15 |
| TEC-04804-15x15x3.32 | 48 | 5.8 | 4.3 | 66 | 13.7 | 1.1 | 15 | 15 |
| TEC-04902-18x18x4 | 49 | 5.9 | 2.4 | 67 | 7.8 | 2.02 | 18 | 18 |
| Model | Thermocouple Pairs | Umax(volts) | Imax(amps) | DTmax(°C) | Qmax(watts) | Resistor(Ω) | Length(mm) | Width(mm) |
| TEC-04902-20x20x4 | 49 | 5.9 | 2.1 | 66 | 6.8 | 2.32 | 20 | 20 |
| TEC-04903-20x20x3.6 | 49 | 5.9 | 3.1 | 66 | 10.1 | 1.55 | 20 | 20 |
| TEC-07102-20x20x4 | 71 | 8.6 | 2.3 | 66 | 11 | 3 | 20 | 20 |
| TEC-07103-20x20x3.5 | 71 | 8.6 | 3.3 | 66 | 16 | 2.07 | 20 | 20 |
| TEC-06311-20x40x3.05 | 63 | 7.6 | 11.2 | 67 | 47.3 | 0.55 | 20 | 40 |
| TEC-06311-40x20x3.05 | 63 | 7.6 | 11.2 | 67 | 47.3 | 0.55 | 40 | 20 |
| TEC-07102-23x23x4 | 71 | 8.6 | 2.3 | 66 | 11 | 3 | 23 | 23 |
| TEC-07103-23x23x3.5 | 71 | 8.6 | 3.3 | 66 | 16 | 2.07 | 23 | 23 |
| TEC-04903-25x25x4.2 | 49 | 5.9 | 3.9 | 67 | 12.9 | 1.22 | 25 | 25 |
| TEC-07102-30x30x4 | 71 | 8.6 | 2.3 | 66 | 11 | 3 | 30 | 30 |
| TEC-07103-30x30x3.7 | 71 | 8.6 | 3.3 | 66 | 16 | 2.07 | 30 | 30 |
| TEC-07103-30x30x4 | 71 | 8.6 | 3.6 | 66 | 17.4 | 1.9 | 30 | 30 |
| TEC-12701-30x30x4.55 | 127 | 15.4 | 1.3 | 67 | 11.4 | 9.25 | 30 | 30 |
| TEC-12702-30x30x4.2 | 127 | 15.4 | 2 | 67 | 17.4 | 6.08 | 30 | 30 |
| TEC-12702-30x30x4.07 | 127 | 15.4 | 2.2 | 67 | 18.9 | 5.6 | 30 | 30 |
| TEC-12703-30x30x3.7 | 127 | 15.4 | 3.4 | 66 | 28.9 | 3.65 | 30 | 30 |
| TEC-12704-30x30x3.4 | 127 | 15.4 | 4.2 | 66 | 36.2 | 2.92 | 30 | 30 |
| TEC-12702-40x40x4.2 | 127 | 15.4 | 2.8 | 66 | 24.1 | 4.38 | 40 | 40 |
| TEC-12703-40x40x3.9 | 127 | 15.4 | 3.4 | 66 | 28.9 | 3.65 | 40 | 40 |
| Model | Thermocouple Pairs | Umax(volts) | Imax(amps) | DTmax(°C) | Qmax(watts) | Resistor(Ω) | Length(mm) | Width(mm) |
| TEC-12704-40x40x3.4 | 127 | 15.4 | 4.2 | 66 | 36.2 | 2.92 | 40 | 40 |
| TEC-12704-40x40x4 | 127 | 15.4 | 4.8 | 66 | 41.1 | 2.57 | 40 | 40 |
| TEC-12705-40x40x3.65 | 127 | 15.4 | 5.6 | 66 | 48 | 2.2 | 40 | 40 |
| TEC-12706-40x40x3.95 | 127 | 15.4 | 6.6 | 67 | 55.9 | 1.89 | 40 | 40 |
| TEC-12707-40x40x4 | 127 | 15.4 | 7.4 | 67 | 62.9 | 1.68 | 40 | 40 |
| TEC-12708-40x40x3.6 | 127 | 15.4 | 8.8 | 67 | 74.9 | 1.41 | 40 | 40 |
| TEC-12716-40x40x3.2 | 127 | 15.4 | 16.3 | 66 | 139 | 0.76 | 40 | 40 |
| TEC-06303-40x20x3.6 | 63 | 7.6 | 3A | 66 | 22.8 | 1.98 | 40 | 20 |
🔷Thermoelectric Peltier's Performance Curve
🔷Element Peltier's Product Feature
1. Single-stage thermoelectric cooling structure
2. The ceramic substrate provides highly efficient heat conduction and dissipation, ensuring silent operation with no mechanical vibration;
3. Rapid temperature response and stable temperature control accuracy;
4. High temperature and pressure resistance, impact resistance, and durability;
5. Switching between cooling and heating modes by reversing the current direction, suitable for standard power supply conditions.
🔷Specific Applications of TEC Product
1. Laser Industry: Temperature control and heat dissipation for laser heads and laser modules
2. Medical Equipment: Biochemical analyzers, aesthetic medical devices, and small medical refrigerators
3. Precision Instruments: Temperature protection for optical lenses, sensors, and industrial control chips
4. Refrigeration Equipment: Car mini-fridges and portable refrigeration and preservation devices
5. Electronic Devices: Cooling and heat dissipation for drones, communication modules, and power amplifier components
🔷Precautions for Using TEC Cooling Plates
1. Hot/Cold Side Check
▪ Red wire = positive (+), black wire = negative (-).
▪ Power on briefly (≤3 seconds) without heat sink:
▪ Warm side = hot side; cool side = cold side.
⚠️ Do not exceed 3 seconds (risk of burnout).
2. Wiring & Power
▪ Red = positive (cooling), reverse polarity for heating.
▪ Use power supply with ripple < 10%.
3. Voltage Calculation
▪ Model example: TEC1-12706
▪ 127 = thermocouple count; 06 = max current (A).
▪ Limit voltage = count × 0.12 (127×0.12=15.4V).
▪ Working voltage = 78% of limit (15.4×0.78=12.01V).
4. Thermal Recovery
▪ Wait ≥15 minutes for TEC to return to room temperature before reuse.
5. Sealing
▪ Seal edges with 704 silicone or epoxy to prevent moisture and extend life.
6. Installation
▪ Clean TEC, heat sink, cold plate; apply thin thermal grease.
▪ Tighten screws evenly; fill gap with 25–30mm insulation.
7. Pressure
▪ Install pressure: 150–300 PSI (avoid too low/high pressure).
8. Resistance Test
▪ Test resistance with LCR meter/compensated ohmmeter.
▪ Multimeter readings are only for reference.
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Yanghai Technology has been deeply rooted in the thermoelectric cooling industry for over a decade. As a comprehensive enterprise integrating R&D, manufacturing, sales, and service, the company places technological innovation at its core and continuously advances into cutting-edge industry applications.
We provide global customers with highly reliable, cost-effective thermoelectric cooling products and solutions, and are committed to becoming a trusted partner in the industry.
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