component

CDSOT23-SM712

Public Made by Adom

by adom

Bourns TVS Diodes, SOT-23. KiCad symbol, footprint and 3D as used on Adom boards; pin functions from the manufacturer datasheet.

componenttransistors/thyristorscdsot23-sm712board-derived

Verified CDSOT23-SM712

by Claude, at Caleb Taylor's request · last 27 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 4 records

27 Oct 2026Claude, at Caleb Taylor's requestValidated against Bourns' CDSOT23-SM712 datasheet (REV. 06/24); 3D model rebuilt to the package drawingfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓Datasheet: Bourns REV. 06/24 downloaded 2026-10-27 from bourns.com/docs/Product-Datasheets/CDSOT23-SM712.pdf; replaces the JLCPCB copy of REV. 01/18
  • ✓Pins: the datasheet names pins only by number; schematic (p.1) shows pins 1 and 2 each joined to common pin 3 through a TVS stack; names 1/2/3 kept, all passive; descriptions rewritten from the p.1 schematic and Electrical Characteristics table
  • •Footprint vs Product Dimensions and Recommended Footprint (p.2): KiCad SOT-23 pads 1.325 x 0.60 mm at 2.275 mm row spacing and 1.90 mm pitch (E 1.90 BSC); Bourns recommends 0.85 x 0.85 mm pads at 2.00 mm row spacing. The KiCad pads span 0.475-1.80 mm from centre and cover the leads (lead span D 2.10-2.49, foot K 0.40-0.58, lead width F 0.30-0.50); pin 1 top-left, pin 2 bottom-left, pin 3 right: the datasheet top view rotated 90 degrees, not mirrored
  • ✓DigiKey CDSOT23-SM712TR-ND (Bourns Inc., tape and reel, from the DigiKey search; the page had false with a wrong 'no exact-MPN listing' note, now replaced) and Mouser 652-CDSOT23-SM712 (kept)
  • ✓3D source: tier 1 none (Bourns links its 3D models from the bourns.com product page, which answers curl (browser headers) with a Cloudflare JavaScript challenge (HTTP 403 "Just a moment..."); guessed /docs/ model paths return the same challenge; a web search found no direct bourns.com STEP. No manufacturer STEP retrievable without solving the challenge (2026-10-27).) Tier 2 rejected (KiCad Package_TO_SOT_SMD.3dshapes/SOT-23-3.step (= SOT-23.step): lead span 2.50 x length 3.00 x height 1.20 mm; G 0.89-1.17 and D 2.10-2.49: height and lead span out of tolerance.) Tier 3: model rebuilt with the KiCad 3D model generator (gitlab.com/kicad/libraries/kicad-packages3D-generator, commit e272fcc8) from Bourns CDSOT23-SM712 datasheet REV. 06/24, Product Dimensions, p.2; parameters in provenance/3d-generator-params.yaml; Adom-authored, CC-BY-SA-4.0
  • ✓3D body vs drawing: body 2.90 x 1.30 mm at the parting line (1.20 at top and bottom, 8 deg draft): A 2.80-3.00, C 1.20-1.40: pass; lead span 2.40 mm: D 2.10-2.49: pass; overall height 1.03 mm (etched 1.035): G 0.89-1.17: pass; standoff 0.10: H 0.05-0.15: pass; feet 0.40 wide, 0.45 long, 0.14 thick: F 0.30-0.50, K 0.40-0.58, L 0.08-0.20: pass; leads at x -1.20..-0.84 (y +/-0.95) and x +0.84..+1.20 (y 0): on footprint pads 1, 2 (x -1.1375) and 3 (x +1.1375): pass; no pin-1 dot on the part (Bourns marking A2YWWL only): none modelled
  • ✓3D pose: cdsot23-sm712.step and cdsot23-sm712-etched.step are Z-up, seated on z = 0, centred on the footprint origin (offset 0.0 mm), footprint (model) binding identity (step_pose.py); the source was built in the footprint frame, so the transform is identity; the etched file adds the adom-chip-laser MPN inlay on the top face; GLBs from step2glb convert; footprint (model) path now ${KIPRJMOD}/cdsot23-sm712.step with only that line changed (pads untouched); provenance/3d-model.json records source, terms, hashes, transform and checks
  • •Datasheet conflict: the Product Dimensions table prints H (standoff) as '0.05 - 0.015' mm while the inch column gives 0.002-0.006 in (0.05-0.15 mm); 0.05-0.15 mm used
  • ✓Symbol Datasheet / MPN / Manufacturer / DigiKey / Mouser / LCSC properties agree with page.json; footprint Datasheet property points at the manufacturer datasheet URL
  • ✓component-page-verify: all checks pass
Evidencedatasheet (Bourns)
Verified files✓ cdsot23-sm712.kicad_sym✓ cdsot23-sm712.kicad_mod✓ cdsot23-sm712.step
16 Oct 2026Claude (AI build)Related wiki pages exist for different orderable numbers (adom/cdsot23-sm712-es, adom/tpcd...superseded
reviewfor all variants
  • •Related wiki pages exist for different orderable numbers (adom/cdsot23-sm712-es, adom/tpcdsot23-sm712); this page is the plain CDSOT23-SM712.
16 Oct 2026Claude (AI build)The datasheet names pins only by number (Pin 1, 2, 3); the board symbol names (TVS1, TVS2,...superseded
reviewfor all variants
  • •The datasheet names pins only by number (Pin 1, 2, 3); the board symbol names (TVS1, TVS2, TVS2) are replaced by the numbers. Pin 3 is the common node of both TVS stacks.
16 Oct 2026Claude (AI build)Automated build checks (awaiting human validation)superseded
SymbolFootprint3D modelPinsfor all variants
  • ✓Footprint extracted pad-for-pad from the source board and normalized to the footprint frame (back-side parts un-mirrored)
  • ✓3D model seated z=0 at footprint origin (placement inverse; method centroid-matched to KiCad library models on 59 cases)
  • ✓adom-lbr generate + lint passed
  • ✓3 of 3 pins described from the datasheet (adom-ds2sf, page-cited)
  • •Not yet checked by a person: land pattern vs datasheet, pin-1/orientation, 3D body vs drawing
Evidencedatasheet
Verified files! cdsot23-sm712.kicad_sym! cdsot23-sm712.kicad_mod! cdsot23-sm712.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
cdsot23-sm712 / package.json
HistoryDownload
Caleb Publish 0.1.3 a0c2c5f 1d ago
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150
{
  "slug": "cdsot23-sm712",
  "version": "0.1.3",
  "type": "component",
  "tags": [
    "component",
    "transistors/thyristors",
    "cdsot23-sm712",
    "board-derived"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "verification.json",
    "cdsot23-sm712.kicad_sym",
    "cdsot23-sm712.kicad_mod",
    "cdsot23-sm712-etched.glb",
    "cdsot23-sm712-etched.step",
    "cdsot23-sm712.glb",
    "cdsot23-sm712.step",
    "cdsot23-sm712.lbr",
    "docs/hero.png",
    "docs/cdsot23-sm712-datasheet.pdf",
    "provenance/3d-generator-params.yaml",
    "provenance/3d-model.json",
    "cdsot23-sm712-hero.glb",
    "cdsot23-sm712-hero.overlay.json"
  ],
  "component": {
    "mpn": "CDSOT23-SM712",
    "manufacturer": "Bourns",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "TVS Diodes",
    "datasheet": "https://www.bourns.com/docs/Product-Datasheets/CDSOT23-SM712.pdf",
    "parts": {
      "symbol": "cdsot23-sm712.kicad_sym",
      "footprint": "cdsot23-sm712.kicad_mod",
      "model_3d": "cdsot23-sm712-hero.glb",
      "model_3d_plain": "cdsot23-sm712-etched.glb",
      "model_3d_step": "cdsot23-sm712-etched.step",
      "model_3d_step_plain": "cdsot23-sm712.step",
      "lbr": "cdsot23-sm712.lbr"
    },
    "distributor_links": {
      "digikey": {
        "part": "CDSOT23-SM712TR-ND",
        "url": "https://www.digikey.com/en/products/detail/bourns-inc/CDSOT23-SM712/1630592"
      },
      "digikey_note": "2026-10-27: CDSOT23-SM712TR-ND is Bourns' tape-and-reel listing (DigiKey search); the 2026-10-16 'no exact-MPN listing' note was wrong.",
      "mouser": {
        "part": "652-CDSOT23-SM712",
        "url": "https://www.mouser.com/en/ProductDetail/Bourns/CDSOT23-SM712?qs=FuI%252BOVLl4%2FLTY%2FGQ265RLA%3D%3D"
      },
      "lcsc": {
        "part": "C404012",
        "url": "https://www.lcsc.com/product-detail/C404012.html"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "Pin 1: one end of a TVS diode stack whose other end is common pin 3 (schematic). Pin 3-1: VWM 7.0 V, VBR min 7.5 V at 1 mA; pin 1-3: VWM 12.0 V, VBR min 13.3 V. [datasheet p.1]"
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Pin 2: one end of a TVS diode stack whose other end is common pin 3 (schematic). Pin 3-2: VWM 7.0 V, VBR min 7.5 V at 1 mA; pin 2-3: VWM 12.0 V, VBR min 13.3 V. [datasheet p.1]"
      },
      {
        "number": "3",
        "name": "3",
        "type": "passive",
        "description": "Pin 3: common node of the two TVS diode stacks (schematic); pins 1 and 2 are each specified against it. [datasheet p.1]"
      }
    ],
    "provenance": {
      "datasheet": {
        "url": "https://www.bourns.com/docs/Product-Datasheets/CDSOT23-SM712.pdf",
        "pages": 5,
        "sha256": "75c1a765dbea8b5d7e57611b8787ce6b2856e57eef387b334bc0a894d91a19d2",
        "source_tier": "mfr",
        "retrieved": "2026-10-27",
        "edition": "REV. 06/24"
      },
      "cad": "Footprint and symbol: KiCad official libraries (CC-BY-SA 4.0) as used on Adom boards. 3D model: Adom-generated with the KiCad 3D model generator from Bourns' CDSOT23-SM712 Product Dimensions table (REV. 06/24, p.2), CC-BY-SA-4.0; see provenance/3d-model.json.",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      },
      "build": {
        "tool": "board-derived part page builder 0.1: one-off Claude session scripts in Caleb Taylor's container (retired; not the Adom parts factory)",
        "pins": "KiCad symbol from the source board + adom-ds2sf datasheet extraction (claude-opus-4-7)",
        "at": "2026-10-16"
      }
    },
    "models_3d": [
      {
        "file": "cdsot23-sm712.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.4,
          2.9,
          1.03
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "92be8fe0d287b63125e7298dcd996c97c53c863c8055a2613dc4dc4ac1a5d73d",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cdsot23-sm712-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.4,
          2.9,
          1.03
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "24645f2a4e0c3b2322b31ee80c84e5c114a398a334234633185b187e9e0152f0",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "description": "Bourns TVS Diodes, SOT-23. KiCad symbol, footprint and 3D as used on Adom boards; pin functions from the manufacturer datasheet."
}