{
 "version": "2026-10-20",
 "license": "Dimension sheets: CC BY 4.0. Standard and published-size files: CC BY 4.0. Xem Studio's own designs (files_license = Xem Studio Design License): free to use and sell things from, not to redistribute as files — https://xemstudio.com/license/. Other publishers' files: their own license, linked beside them.",
 "slug": "pololu-s7v8a-step-up-step-down-regulator",
 "name": "Pololu S7V8A step-up/step-down regulator (#2118) — board outline and 1 × 4 header holes",
 "kind": "modern",
 "category": "Electronic components",
 "group": "Modules, sensors & displays",
 "year": null,
 "question": "What are the Pololu S7V8A regulator dimensions and header-hole positions?",
 "tags": [
  "voltage regulator",
  "buck boost regulator",
  "step-up step-down board",
  "pololu regulator",
  "battery power module",
  "header pin footprint"
 ],
 "aliases": [
  "pololu s7v8a",
  "pololu 2118",
  "s7v8a regulator",
  "s7v8f3",
  "s7v8f5",
  "pololu step-up/step-down regulator dimensions",
  "pololu adjustable buck boost"
 ],
 "overall_mm": {
  "length": 16.51,
  "width": 11.43,
  "height": 1.02
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/pololu-s7v8a-step-up-step-down-regulator/",
 "sheet_txt": "https://xemstudio.com/objects/pololu-s7v8a-step-up-step-down-regulator/sheet.txt",
 "sheet": {
  "basis": "Pololu's S7V8x dimension drawing and S7V8A product page (#2118).",
  "overall_mm": {
   "length": 16.51,
   "width": 11.43,
   "height": 1.02
  },
  "notes": [
   "Exact nominal dimensions. PCB 11.43 × 16.51 × 1.02 mm (0.45 × 0.65 in), square corners; datum is the board centre, bottom on z=0.",
   "No mounting holes: the board mounts by one 1 × 4 header row (SHDN, VIN, GND, VOUT).",
   "Four header holes Ø1.02 on 2.54 mm pitch at x = −3.81, −1.27, +1.27, +3.81, y = −6.985 (1.27 mm from the short edge; outer holes 1.91 mm from the side edges).",
   "Components rise about 1.8 mm above the top face (2.82 mm total; Pololu lists 0.1 in / 3 mm overall): allow 3 mm height clearance. Components are not modelled.",
   "Same board for S7V8F3 (#2122) and S7V8F5 (#2123)."
  ],
  "table": {
   "columns": [
    "hole",
    "x mm",
    "y mm",
    "diameter mm"
   ],
   "rows": [
    [
     "1",
     -3.81,
     -6.985,
     1.02
    ],
    [
     "2",
     -1.27,
     -6.985,
     1.02
    ],
    [
     "3",
     1.27,
     -6.985,
     1.02
    ],
    [
     "4",
     3.81,
     -6.985,
     1.02
    ]
   ]
  }
 },
 "sheet_text": "Pololu S7V8A step-up/step-down regulator (#2118) — board outline and 1 × 4 header holes — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/pololu-s7v8a-step-up-step-down-regulator/  (sheet CC BY 4.0)\nBasis: Pololu's S7V8x dimension drawing and S7V8A product page (#2118).\nCatalog version: 2026-10-20\n\nOverall (mm): length 16.51, width 11.43, height 1.02\n- Exact nominal dimensions. PCB 11.43 × 16.51 × 1.02 mm (0.45 × 0.65 in), square corners; datum is the board centre, bottom on z=0.\n- No mounting holes: the board mounts by one 1 × 4 header row (SHDN, VIN, GND, VOUT).\n- Four header holes Ø1.02 on 2.54 mm pitch at x = −3.81, −1.27, +1.27, +3.81, y = −6.985 (1.27 mm from the short edge; outer holes 1.91 mm from the side edges).\n- Components rise about 1.8 mm above the top face (2.82 mm total; Pololu lists 0.1 in / 3 mm overall): allow 3 mm height clearance. Components are not modelled.\n- Same board for S7V8F3 (#2122) and S7V8F5 (#2123).\n\nhole  x mm  y mm  diameter mm\n1  -3.81  -6.985  1.02\n2  -1.27  -6.985  1.02\n3  1.27  -6.985  1.02\n4  3.81  -6.985  1.02\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Pololu: Pololu adjustable step-up/step-down regulator S7V8A (#2118) — web — Publisher's page; dimensions are facts — https://www.pololu.com/product/2118\n- Pololu: S7V8x step-up/step-down regulator dimensions (PDF) — web — Publisher's page; dimensions are facts — https://www.pololu.com/file/0J1442/s7v8x-step-up-step-down-voltage-regulator-dimensions.pdf\n- Pololu: S7V8A 3D model (STEP) — web — Publisher's page; dimensions are facts — https://www.pololu.com/file/0J1373/pololu-adjustable-step-up_step-down-voltage-regulator-s7v8a.step\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/pololu-s7v8a-step-up-step-down-regulator/index.json\nAPI: https://xemstudio.com/api/geometry?object=pololu-s7v8a-step-up-step-down-regulator\n",
 "sources": [
  {
   "publisher": "Pololu",
   "title": "Pololu adjustable step-up/step-down regulator S7V8A (#2118)",
   "url": "https://www.pololu.com/product/2118",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Pololu",
   "title": "S7V8x step-up/step-down regulator dimensions (PDF)",
   "url": "https://www.pololu.com/file/0J1442/s7v8x-step-up-step-down-voltage-regulator-dimensions.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Pololu",
   "title": "S7V8A 3D model (STEP)",
   "url": "https://www.pololu.com/file/0J1373/pololu-adjustable-step-up_step-down-voltage-regulator-s7v8a.step",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "pololu-s9v11f5-5v-step-up-step-down-regulator",
  "pololu-d24v10f5-5v-1a-step-down-regulator",
  "lm2596-buck-converter-module",
  "tp4056-usb-c-charger-module",
  "pin-headers-2.54mm"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no tolerance added)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no tolerance added. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn. Typical accuracy by process and ISO 286 fits: https://xemstudio.com/tolerances/",
 "mating": [
  {
   "feature": "header holes",
   "exact": "1 × 4, Ø1.02, 2.54 pitch, 1.27 from the short edge",
   "mates": "2.54 mm pin header, breadboard or carrier socket",
   "fit": "designed",
   "files": "all"
  }
 ],
 "fit_classes": {
  "press": "stays put: pin, tube, bearing or magnet held by interference. ISO 286 equivalent: H7/p6 (locational interference) or tighter.",
  "slide": "assembles by hand and is held by a grub, pinch or clamp: shaft in a hub, rod in a socket, spigot in a bore. ISO 286 equivalent: H7/g6 or H7/h6.",
  "run": "turns or slides in use: pin in a link, rod through a guide. ISO 286 equivalent: H8/f7 (close running).",
  "socket": "large sliding fit: syringe barrel, sleeve, bobbin in a bore. ISO 286 equivalent: H9/d9 (free running) or looser.",
  "clamp": "split part that closes on the mating part with screws: make it at size.",
  "designed": "a gap that is part of the design (piston fit option, displacer gap, air gap): do not change."
 },
 "faq": [
  {
   "q": "How big is the Pololu S7V8A?",
   "a": "11.43 × 16.51 mm (0.45 × 0.65 in), 1.02 mm PCB, about 3 mm tall with components."
  },
  {
   "q": "Does the S7V8A have mounting holes?",
   "a": "No. It has one 1 × 4 row of Ø1.02 mm holes on 2.54 mm pitch along a short edge."
  },
  {
   "q": "Are the S7V8F3 and S7V8F5 the same size?",
   "a": "Yes, they use the same 11.43 × 16.51 mm board."
  }
 ],
 "files_license": null,
 "offers": [
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   "file": "pololu-s7v8a-step-up-step-down-regulator",
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   "license": "CC BY 4.0 (Xem Studio)",
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   "note": "Pololu S7V8A step-up/step-down regulator (#2118) — board outline and 1 × 4 header holes"
  }
 ],
 "markdown": "https://xemstudio.com/objects/pololu-s7v8a-step-up-step-down-regulator/index.md"
}