{"product_id":"40x40mm-thermoelectric-generator-module-seebeck-sp1848","title":"40x40mm Thermoelectric Generator Module SP1848 – Seebeck TEG","description":"\u003ch2\u003eB15C 40x40mm Thermoelectric Generator Module (SP1848-27145)\u003c\/h2\u003e\n\u003cp\u003eConvert heat into usable electricity with this compact, high-efficiency \u003cstrong\u003eThermoelectric Generator (TEG) Module\u003c\/strong\u003e. 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.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China. RoHS certified.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e SP1848-27145\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 40mm × 40mm × 3.8mm (4cm × 4cm × 0.38cm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 23g\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Ceramic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorking Temperature Range:\u003c\/strong\u003e -60°C to +125°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax Hot-Side Temperature:\u003c\/strong\u003e 150°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Electromotive Force (α):\u003c\/strong\u003e \u0026gt;190 μV\/°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptimum Figure of Merit (Z):\u003c\/strong\u003e 2.5–3 × 10⁻³ W\/°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThermal Conductivity (K):\u003c\/strong\u003e 15–16 × 10⁻³ W\/cm·°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectrical Conductivity:\u003c\/strong\u003e 850–1250 Ω⁻¹·cm⁻¹\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLead Wire Length:\u003c\/strong\u003e ~30cm (Red = Positive, Black = Negative)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e RoHS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProtection:\u003c\/strong\u003e Sealed for moisture resistance; NM static protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eSeebeck Effect Power Generation\u003c\/strong\u003e — Generates electricity when a temperature differential is applied across the module; no moving parts required.\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eWide Temperature Range\u003c\/strong\u003e — Operates reliably from -60°C to +125°C with a hot-side tolerance up to 150°C.\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eMoisture-Sealed Construction\u003c\/strong\u003e — Sealed design protects internal thermal elements and ensures long-lasting performance.\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eCompact \u0026amp; Lightweight\u003c\/strong\u003e — At just 23g and 40×40mm, it integrates easily into small enclosures, DIY builds, and experimental setups.\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eSimple Wiring\u003c\/strong\u003e — Red wire to positive, black wire to negative — straightforward connection for fast prototyping.\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eRoHS Compliant\u003c\/strong\u003e — Meets environmental compliance standards for hazardous substance restrictions.\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eVersatile Application\u003c\/strong\u003e — Suitable for energy harvesting, thermoelectric experiments, science projects, campfire generators, waste-heat recovery setups, and more.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× Thermoelectric Generator Module (SP1848-27145)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cp\u003eExplore more electronic and hobby tools from our store:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/792leds-510k-l7-large-red-light-therapy-led-panel-infrared-light-pad-human-pet-full-body-use-massage-relaxation-660nm-850nm\"\u003e792LEDs 510k L7 Large Red Light Therapy LED Panel – 660nm 850nm\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/bincoo-3-valve-316-stainless-steel-moka-pot-single-dual-valve-option-home-outdoor-espresso-coffee-maker\"\u003eBincoo 3-Valve 316 Stainless Steel Moka Pot – Home \u0026amp; Outdoor\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/2-3m-car-drain-cleaning-brush-sunroof-pipe-detailing-tool\"\u003e2.3m Flexible Car Drain Cleaning Brush – Sunroof Pipe Tool\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.epa.gov\/recycle\/used-lithium-ion-batteries\" target=\"_blank\" rel=\"noopener\"\u003eEPA guidance on lithium-ion battery handling\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: How does this thermoelectric generator module work?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the maximum temperature this thermoelectric generator can handle?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What can I use this TEG module for?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I connect the wires?\u003c\/h4\u003e\n\u003cp\u003eA: Wiring is straightforward — connect the \u003cstrong\u003ered wire to the positive terminal\u003c\/strong\u003e and the \u003cstrong\u003eblack wire to the negative terminal\u003c\/strong\u003e of your circuit. The module comes with approximately 30cm of lead wire for easy reach.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo 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.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How does this thermoelectric generator module work?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"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. 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