40x40mm Thermoelectric Generator Module SP1848 – Seebeck TEG

B15C 40x40mm Thermoelectric Generator Module (SP1848-27145)

Convert heat into usable electricity with this compact, high-efficiency Thermoelectric Generator (TEG) Module. Built on the Seebeck effect, this ceramic semiconductor module generates electrical power whenever there is a temperature difference across its surfaces — making it ideal for DIY energy harvesting, electronics experiments, educational projects, and small-scale power generation applications.

Made in Mainland China. RoHS certified.

Key Specifications

• Model: SP1848-27145
• Dimensions: 40mm × 40mm × 3.8mm (4cm × 4cm × 0.38cm)
• Weight: 23g
• Material: Ceramic
• Color: White
• Working Temperature Range: -60°C to +125°C
• Max Hot-Side Temperature: 150°C
• Temperature Electromotive Force (α): >190 μV/°C
• Optimum Figure of Merit (Z): 2.5–3 × 10⁻³ W/°C
• Thermal Conductivity (K): 15–16 × 10⁻³ W/cm·°C
• Electrical Conductivity: 850–1250 Ω⁻¹·cm⁻¹
• Lead Wire Length: ~30cm (Red = Positive, Black = Negative)
• Certification: RoHS
• Protection: Sealed for moisture resistance; NM static protection

Features & Benefits

• ✅ Seebeck Effect Power Generation — Generates electricity when a temperature differential is applied across the module; no moving parts required.
• ✅ Wide Temperature Range — Operates reliably from -60°C to +125°C with a hot-side tolerance up to 150°C.
• ✅ Moisture-Sealed Construction — Sealed design protects internal thermal elements and ensures long-lasting performance.
• ✅ Compact & Lightweight — At just 23g and 40×40mm, it integrates easily into small enclosures, DIY builds, and experimental setups.
• ✅ Simple Wiring — Red wire to positive, black wire to negative — straightforward connection for fast prototyping.
• ✅ RoHS Compliant — Meets environmental compliance standards for hazardous substance restrictions.
• ✅ Versatile Application — Suitable for energy harvesting, thermoelectric experiments, science projects, campfire generators, waste-heat recovery setups, and more.

Package Contents

• 1× Thermoelectric Generator Module (SP1848-27145)

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Frequently Asked Questions

Q: How does this thermoelectric generator module work?

A: This module uses the Seebeck effect — a principle where a temperature difference between the hot side and cold side of a semiconductor ceramic module generates an electrical voltage. The greater the temperature differential, the more power is produced. Simply apply heat to one side and keep the other side cooler to begin generating electricity.

Q: What is the maximum temperature this thermoelectric generator can handle?

A: The module has a working environment range of -60°C to +125°C, with the hot side tolerating up to 150°C. Operating within these limits ensures stable performance and longevity of the module.

Q: What can I use this TEG module for?

A: This module is ideal for DIY energy harvesting projects, science and engineering experiments, small-scale waste-heat recovery, campfire-powered chargers, and educational demonstrations of thermoelectric principles. Its compact 40×40mm size makes it easy to integrate into a wide range of builds.

Q: How do I connect the wires?

A: Wiring is straightforward — connect the red wire to the positive terminal and the black wire to the negative terminal of your circuit. The module comes with approximately 30cm of lead wire for easy reach.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.