{
 "version": "2026-10-20",
 "license": "Dimension sheets are written by Xem Studio from the cited sources and are free to use (CC BY 4.0, attribute 'Xem Studio'). Linked files belong to their publishers under the license shown; Xem Studio does not host them. 'license_verified: false' means the license shown is from memory or the publisher's page as last read and should be confirmed at the link before commercial use.",
 "slug": "thermoelectric-tec1",
 "name": "Thermoelectric (Peltier) modules: TEC1-12706, 12710, 30 mm",
 "kind": "hardware",
 "category": "Hardware",
 "group": "Stirling & thermoacoustic",
 "year": null,
 "question": "What are TEC1-12706 dimensions?",
 "tags": [
  "peltier",
  "thermoelectric",
  "tec",
  "cooling",
  "generator",
  "stirling",
  "long earth society"
 ],
 "aliases": [
  "tec1-12706 dimensions",
  "peltier module size",
  "tec1-12710 thickness",
  "40x40 peltier",
  "thermoelectric generator size"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": true,
 "free_files": 3,
 "url": "https://xemstudio.com/objects/thermoelectric-tec1/",
 "sheet_txt": "https://xemstudio.com/objects/thermoelectric-tec1/sheet.txt",
 "sheet": {
  "basis": "Common TEC1 module sizes from manufacturer datasheets (Hebei I.T., Laird equivalents); thickness varies ±0.1 mm by maker",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "TEC1-12706: 40 × 40 × 3.8 mm (127 couples, 6 A, ~60 W heat pumping at ΔT 0); the standard hobby module. TEC1-12710: 40 × 40 × 3.3–3.4 mm, 10 A. 30 × 30 × 3.4 mm modules (TEC1-12704, 03104 class) for small loads. 50 × 50 and 62 × 62 exist for high current.",
   "Leads exit one edge (red +, black −); keep 5 mm clear there. Hot and cold faces are the ceramic plates: clamp between heat sinks with thermal paste, 4 × M3 at the heat-sink corners, never over-tighten (ceramic cracks).",
   "As a generator (Seebeck) a 12706 gives ~1–2 W at ΔT 100 K; the high-temperature TEG modules (TEG1-12611 etc.) share the 40 × 40 footprint but run to 300 °C.",
   "Why it's here: the LES thermoacoustic builds use a 12706 as a ΔT instrument and as a TEG on the cold spool to run the fan."
  ],
  "table": {
   "columns": [
    "module",
    "size_mm",
    "thickness_mm",
    "i_max_a",
    "note"
   ],
   "rows": [
    [
     "TEC1-12706",
     "40 × 40",
     3.8,
     6,
     "standard hobby module"
    ],
    [
     "TEC1-12710",
     "40 × 40",
     3.4,
     10,
     "thinner"
    ],
    [
     "TEC1-12704 / 03104",
     "30 × 30",
     3.4,
     4,
     "small"
    ],
    [
     "TEC1-12730",
     "62 × 62",
     4.8,
     30,
     "large"
    ]
   ]
  }
 },
 "sheet_text": "Thermoelectric (Peltier) modules: TEC1-12706, 12710, 30 mm — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/thermoelectric-tec1/  (CC BY 4.0)\nBasis: Common TEC1 module sizes from manufacturer datasheets (Hebei I.T., Laird equivalents); thickness varies ±0.1 mm by maker\nCatalog version: 2026-10-20\n\nSizes: see table below\n- TEC1-12706: 40 × 40 × 3.8 mm (127 couples, 6 A, ~60 W heat pumping at ΔT 0); the standard hobby module. TEC1-12710: 40 × 40 × 3.3–3.4 mm, 10 A. 30 × 30 × 3.4 mm modules (TEC1-12704, 03104 class) for small loads. 50 × 50 and 62 × 62 exist for high current.\n- Leads exit one edge (red +, black −); keep 5 mm clear there. Hot and cold faces are the ceramic plates: clamp between heat sinks with thermal paste, 4 × M3 at the heat-sink corners, never over-tighten (ceramic cracks).\n- As a generator (Seebeck) a 12706 gives ~1–2 W at ΔT 100 K; the high-temperature TEG modules (TEG1-12611 etc.) share the 40 × 40 footprint but run to 300 °C.\n- Why it's here: the LES thermoacoustic builds use a 12706 as a ΔT instrument and as a TEG on the cold spool to run the fan.\n\nmodule  size_mm  thickness_mm  i_max_a  note\nTEC1-12706  40 × 40  3.8  6  standard hobby module\nTEC1-12710  40 × 40  3.4  10  thinner\nTEC1-12704 / 03104  30 × 30  3.4  4  small\nTEC1-12730  62 × 62  4.8  30  large\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Wikipedia: Thermoelectric cooling — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Thermoelectric_cooling\n- Hebei I.T. (Shanghai): TEC1-12706 datasheet — PDF — Manufacturer datasheet [verify license at link] — https://peltiermodules.com/peltier.datasheet/TEC1-12706.pdf\n- Long Earth Society: Engine builds that use these parts (videos and write-ups) — web, video — LES site — https://longearthsociety.com/engineering/\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 3 parts): https://xemstudio.com/files/hardware/thermoelectric-tec1/index.json\nAPI: https://xemstudio.com/api/geometry?object=thermoelectric-tec1\n",
 "sources": [
  {
   "publisher": "Wikipedia",
   "title": "Thermoelectric cooling",
   "url": "https://en.wikipedia.org/wiki/Thermoelectric_cooling",
   "formats": [
    "web"
   ],
   "license": "CC BY-SA 4.0 (text)",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Hebei I.T. (Shanghai)",
   "title": "TEC1-12706 datasheet",
   "url": "https://peltiermodules.com/peltier.datasheet/TEC1-12706.pdf",
   "formats": [
    "PDF"
   ],
   "license": "Manufacturer datasheet",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "Long Earth Society",
   "title": "Engine builds that use these parts (videos and write-ups)",
   "url": "https://longearthsociety.com/engineering/",
   "formats": [
    "web",
    "video"
   ],
   "license": "LES site",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "120mm-fan",
  "axial-fan-frames",
  "socket-head-cap-screws-metric",
  "tri-clamp-spool",
  "copper-pipe-type-l-m"
 ],
 "faq": [
  {
   "q": "What are TEC1-12706 dimensions?",
   "a": "40 × 40 × 3.8 mm (±0.1), leads 0.9 mm² on one edge, about 24 g. Fits between any two 40 mm heat sinks."
  },
  {
   "q": "What is the difference between TEC1-12706 and 12710?",
   "a": "Current rating (6 vs 10 A) and thickness: 3.8 vs 3.3–3.4 mm. Same 40 × 40 footprint."
  },
  {
   "q": "Can a Peltier module generate power?",
   "a": "Yes, as a Seebeck generator: a 12706 gives roughly 1–2 W at a 100 K temperature difference, enough for a 40 mm fan; dedicated TEG modules tolerate higher temperatures."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "tec1-12706-40x40x3.8",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/thermoelectric-tec1/tec1-12706-40x40x3.8.step",
   "stl": "https://xemstudio.com/files/hardware/thermoelectric-tec1/tec1-12706-40x40x3.8.stl",
   "note": "TEC1-12706: 40 × 40 × 3.8 mm, 127 couples, 6 A, leads on one edge"
  },
  {
   "file": "tec1-12710-40x40x3.4",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/thermoelectric-tec1/tec1-12710-40x40x3.4.step",
   "stl": "https://xemstudio.com/files/hardware/thermoelectric-tec1/tec1-12710-40x40x3.4.stl",
   "note": "TEC1-12710: 40 × 40 × 3.4 mm (some 3.3), 10 A"
  },
  {
   "file": "tec1-12704-30x30x3.4",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/thermoelectric-tec1/tec1-12704-30x30x3.4.step",
   "stl": "https://xemstudio.com/files/hardware/thermoelectric-tec1/tec1-12704-30x30x3.4.stl",
   "note": "TEC1-12704 / 03104 class: 30 × 30 × 3.4 mm"
  }
 ],
 "markdown": "https://xemstudio.com/objects/thermoelectric-tec1/index.md"
}