Peltier Module, also known as Thermoelectric Cooler (TEC), is a solid-state device that uses the Peltier effect to create a heat flux between two junctions when electric current flows through it.
Key Features:
- Compact and reliable (no moving parts)
- Can both heat and cool by reversing current polarity
- Used in temperature stabilization (e.g., laser diodes, CCD sensors)
- Common sizes: 15×15 mm, 20×20 mm, 30×30 mm
- Voltage: Typically 12V or lower
- Efficiency: Low compared to compressor-based systems
Pinout & Wiring:
Two wires: Red (+) and Black (-). Reversing polarity swaps hot and cold sides.
Applications:
- Cooling electronic components
- Portable coolers / warmers
- Laboratory equipment
- Dew prevention in optics
Design Tips:
⚠️ Caution: Always use thermal paste and heatsinks. Avoid dry firing. Use PWM control with PID for precise temperature regulation.