{
 "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": "buzzers-tht",
 "name": "Buzzers and beepers: 12 mm, 15 mm magnetic; TDK PS1240 piezo",
 "kind": "standard",
 "category": "Electronics",
 "group": "Indicators",
 "year": null,
 "question": "What are the dimensions of a 12 mm buzzer?",
 "tags": [
  "buzzer",
  "beeper",
  "piezo",
  "pcb"
 ],
 "aliases": [
  "12mm buzzer dimensions",
  "buzzer pin spacing",
  "ps1240",
  "magnetic buzzer size",
  "active buzzer"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 7,
 "url": "https://xemstudio.com/objects/buzzers-tht/",
 "sheet_txt": "https://xemstudio.com/objects/buzzers-tht/sheet.txt",
 "sheet": {
  "basis": "KiCad 3D models of common PCB buzzers (12 × 9.5 mm and 15 × 7.5 mm magnetic with 7.6 mm pin spacing; TDK PS1240 12 mm piezo; CUI CST-931)",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "12 mm magnetic buzzer (the black cylinder on Arduino kits): Ø12 × 9.5 mm, pins 7.6 mm apart, sound hole on top; needs a Ø3–4 mm hole in the case within 2 mm of the port.",
   "15 mm: Ø15 × 7.5 mm, same 7.6 mm pitch. TDK PS1240 piezo: Ø12.2 × 6.5 mm, 5 mm pitch; passive, drive with a square wave.",
   "A printed resonant chamber (Ø12 cavity 3 mm deep over the port, exiting through a Ø2.5 hole) makes a 12 mm buzzer noticeably louder."
  ],
  "table": {
   "columns": [
    "part",
    "bbox_l_mm",
    "bbox_w_mm",
    "bbox_h_mm"
   ],
   "rows": [
    [
     "12x9.5rm7.6",
     12.5,
     12,
     12
    ],
    [
     "15x7.5rm7.6",
     15,
     15,
     10.5
    ],
    [
     "mallory-ast1109mltrq",
     15,
     9,
     2
    ],
    [
     "tdk-ps1240p02bt",
     21.5,
     12,
     12
    ],
    [
     "cui-cst-931rp-a",
     10.8,
     9,
     9
    ],
    [
     "kingstate-kcg0601",
     6.8,
     6.6,
     6.6
    ],
    [
     "prosignal-abt-410-rc",
     12,
     12,
     11.5
    ]
   ]
  }
 },
 "sheet_text": "Buzzers and beepers: 12 mm, 15 mm magnetic; TDK PS1240 piezo — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/buzzers-tht/  (CC BY 4.0)\nBasis: KiCad 3D models of common PCB buzzers (12 × 9.5 mm and 15 × 7.5 mm magnetic with 7.6 mm pin spacing; TDK PS1240 12 mm piezo; CUI CST-931)\nCatalog version: 2026-10-20\n\nSizes: see table below\n- 12 mm magnetic buzzer (the black cylinder on Arduino kits): Ø12 × 9.5 mm, pins 7.6 mm apart, sound hole on top; needs a Ø3–4 mm hole in the case within 2 mm of the port.\n- 15 mm: Ø15 × 7.5 mm, same 7.6 mm pitch. TDK PS1240 piezo: Ø12.2 × 6.5 mm, 5 mm pitch; passive, drive with a square wave.\n- A printed resonant chamber (Ø12 cavity 3 mm deep over the port, exiting through a Ø2.5 hole) makes a 12 mm buzzer noticeably louder.\n\npart  bbox_l_mm  bbox_w_mm  bbox_h_mm\n12x9.5rm7.6  12.5  12.0  12.0\n15x7.5rm7.6  15.0  15.0  10.5\nmallory-ast1109mltrq  15.0  9.0  2.0\ntdk-ps1240p02bt  21.5  12.0  12.0\ncui-cst-931rp-a  10.8  9.0  9.0\nkingstate-kcg0601  6.8  6.6  6.6\nprosignal-abt-410-rc  12.0  12.0  11.5\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- KiCad: kicad-packages3D library (origin of these files) — STEP, WRL — CC BY-SA 4.0 with KiCad exception — https://gitlab.com/kicad/libraries/kicad-packages3D\n\nFree files (CC BY-SA 4.0 (KiCad library license, with the KiCad exception), KiCad library contributors; STEP + STL, 7 parts): https://xemstudio.com/files/kicad/buzzers-tht/index.json\nAPI: https://xemstudio.com/api/geometry?object=buzzers-tht\n",
 "sources": [
  {
   "publisher": "KiCad",
   "title": "kicad-packages3D library (origin of these files)",
   "url": "https://gitlab.com/kicad/libraries/kicad-packages3D",
   "formats": [
    "STEP",
    "WRL"
   ],
   "license": "CC BY-SA 4.0 with KiCad exception",
   "license_verified": true,
   "hosted": true
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "panel-cutouts",
  "leds-tht",
  "pin-headers-2.54mm"
 ],
 "faq": [
  {
   "q": "What is the pin spacing of a 12 mm buzzer?",
   "a": "7.6 mm (0.3 in). The 15 mm buzzers use the same 7.6 mm spacing; the TDK PS1240 piezo uses 5 mm."
  },
  {
   "q": "How tall is a 12 mm buzzer?",
   "a": "9.5 mm for the common 12 × 9.5 magnetic buzzer; 6.5 mm for the PS1240 piezo."
  }
 ],
 "files_license": {
  "name": "CC BY-SA 4.0 (KiCad library license, with the KiCad exception)",
  "holder": "KiCad library contributors",
  "url": "https://www.kicad.org/libraries/license/",
  "note": "Rehosted unmodified (STL converted from the STEP) with the library's LICENSE.md and CREDITS.md beside the files, as the license requires. Using these models in your own design does not make your design share-alike (KiCad exception)."
 },
 "offers": [
  {
   "file": "12x9.5rm7.6",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY-SA 4.0 (KiCad library license, with the KiCad exception)",
   "step": "https://xemstudio.com/files/kicad/buzzers-tht/12x9.5rm7.6.step",
   "stl": "https://xemstudio.com/files/kicad/buzzers-tht/12x9.5rm7.6.stl",
   "note": "KiCad Buzzer_Beeper: Buzzer_12x9.5RM7.6; bbox 12.5 × 12.0 × 12.0 mm"
  },
  {
   "file": "15x7.5rm7.6",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY-SA 4.0 (KiCad library license, with the KiCad exception)",
   "step": "https://xemstudio.com/files/kicad/buzzers-tht/15x7.5rm7.6.step",
   "stl": "https://xemstudio.com/files/kicad/buzzers-tht/15x7.5rm7.6.stl",
   "note": "KiCad Buzzer_Beeper: Buzzer_15x7.5RM7.6; bbox 15.0 × 15.0 × 10.5 mm"
  },
  {
   "file": "mallory-ast1109mltrq",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY-SA 4.0 (KiCad library license, with the KiCad exception)",
   "step": "https://xemstudio.com/files/kicad/buzzers-tht/mallory-ast1109mltrq.step",
   "stl": "https://xemstudio.com/files/kicad/buzzers-tht/mallory-ast1109mltrq.stl",
   "note": "KiCad Buzzer_Beeper: Buzzer_Mallory_AST1109MLTRQ; bbox 15.0 × 9.0 × 2.0 mm"
  },
  {
   "file": "tdk-ps1240p02bt",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY-SA 4.0 (KiCad library license, with the KiCad exception)",
   "step": "https://xemstudio.com/files/kicad/buzzers-tht/tdk-ps1240p02bt.step",
   "stl": "https://xemstudio.com/files/kicad/buzzers-tht/tdk-ps1240p02bt.stl",
   "note": "KiCad Buzzer_Beeper: Buzzer_TDK_PS1240P02BT; bbox 21.5 × 12.0 × 12.0 mm"
  },
  {
   "file": "cui-cst-931rp-a",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY-SA 4.0 (KiCad library license, with the KiCad exception)",
   "step": "https://xemstudio.com/files/kicad/buzzers-tht/cui-cst-931rp-a.step",
   "stl": "https://xemstudio.com/files/kicad/buzzers-tht/cui-cst-931rp-a.stl",
   "note": "KiCad Buzzer_Beeper: MagneticBuzzer_CUI_CST-931RP-A; bbox 10.8 × 9.0 × 9.0 mm"
  },
  {
   "file": "kingstate-kcg0601",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY-SA 4.0 (KiCad library license, with the KiCad exception)",
   "step": "https://xemstudio.com/files/kicad/buzzers-tht/kingstate-kcg0601.step",
   "stl": "https://xemstudio.com/files/kicad/buzzers-tht/kingstate-kcg0601.stl",
   "note": "KiCad Buzzer_Beeper: MagneticBuzzer_Kingstate_KCG0601; bbox 6.8 × 6.6 × 6.6 mm"
  },
  {
   "file": "prosignal-abt-410-rc",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY-SA 4.0 (KiCad library license, with the KiCad exception)",
   "step": "https://xemstudio.com/files/kicad/buzzers-tht/prosignal-abt-410-rc.step",
   "stl": "https://xemstudio.com/files/kicad/buzzers-tht/prosignal-abt-410-rc.stl",
   "note": "KiCad Buzzer_Beeper: MagneticBuzzer_ProSignal_ABT-410-RC; bbox 12.0 × 12.0 × 11.5 mm"
  }
 ],
 "markdown": "https://xemstudio.com/objects/buzzers-tht/index.md"
}