CR0603-FX-4702ELF

{
 "schema": "adom/verification@1",
 "part": "CR0603-FX-4702ELF",
 "variants": [],
 "entries": [
  {
   "date": "2026-10-08",
   "by": {
    "name": "Claude (AI build)",
    "handle": "claude"
   },
   "status": "superseded",
   "title": "Automated build checks (awaiting human validation)",
   "scope": [
    "symbol",
    "footprint",
    "3d",
    "pins"
   ],
   "variants": [
    "*"
   ],
   "checks": [
    {
     "text": "Footprint extracted pad-for-pad from the source board and normalized to the footprint frame (back-side parts un-mirrored)",
     "result": "pass"
    },
    {
     "text": "3D model seated z=0 at footprint origin (placement inverse; method centroid-matched to KiCad library models on 59 cases)",
     "result": "pass"
    },
    {
     "text": "adom-lbr generate + lint passed",
     "result": "pass"
    },
    {
     "text": "2 of 2 pins described",
     "result": "pass"
    },
    {
     "text": "Not yet checked by a person: land pattern vs datasheet, pin-1/orientation, 3D body vs drawing",
     "result": "note"
    }
   ],
   "evidence": [
    {
     "label": "datasheet",
     "href": "docs/cr0603-fx-4702elf-datasheet.pdf"
    }
   ],
   "files": {
    "cr0603-fx-4702elf.kicad_sym": "4101b22b23b94fefbe551031a660b41162e65e73ef7ccc9bf93a455f19e44456",
    "cr0603-fx-4702elf.kicad_mod": "055b40ea99911319603d276e96ff020a16e5c5e8250cbf6974817a7ea3072882",
    "cr0603-fx-4702elf.step": "1875571c326d0d9e96f36b4efeb8094068ef7619f0a449c781caf0b49c2e5861"
   }
  },
  {
   "date": "2026-10-27",
   "by": {
    "name": "Claude, at Caleb Taylor's request",
    "handle": "claude"
   },
   "status": "verified",
   "title": "Validated against Bourns' CR Series datasheet (REV. 03/21)",
   "scope": [
    "symbol",
    "footprint",
    "3d",
    "pins"
   ],
   "variants": [
    "*"
   ],
   "checks": [
    {
     "text": "Datasheet: the page already carries Bourns' current CR Series datasheet (REV. 03/21 (legal disclaimer page K2540 05/26R); sha256 97eac911e95cfefa... matches https://bourns.com/docs/product-datasheets/cr.pdf re-downloaded 2026-10-27); edition and page count recorded",
     "result": "pass"
    },
    {
     "text": "Part number decoded with 'How to Order' (p.5): CR = chip resistor; 0603 size; F = ±1%; X = ±100 ppm/°C; 4702 = 470 x 10^2 Ω = 47 kΩ (1%: three significant digits and a multiplier); E = paper tape, 5,000 pcs on 7-inch plastic reel (CR0603); LF = tin-plated (RoHS compliant)",
     "result": "pass"
    },
    {
     "text": "Ratings for CR0603 (Electrical Characteristics, p.1): 1/10 W at 70 °C, max. working voltage 75 V, max. overload voltage 150 V, operating temperature -55 to +155 °C, ±1% TCR ±100 ppm/°C for 10 Ω ≤ R ≤ 1 MΩ, which covers 47 kΩ",
     "result": "pass"
    },
    {
     "text": "Pins: unpolarized two-terminal part; pins 1 and 2 keep empty names, type passive and the library descriptions (the datasheet has no pin table; both terminations are identical, Product Dimensions p.2)",
     "result": "pass"
    },
    {
     "text": "Footprint vs Product Dimensions (p.2) for CR0603 (L 1.60±0.10, W 0.80±0.10, bottom termination D 0.30±0.20, top C 0.30±0.20 mm): pads 0.80 x 0.95 mm at x = ±0.825 mm (inner edges ±0.425, outer ±1.225 mm) cover both terminations; pad width 0.95 mm exceeds the maximum body width 0.90 mm; pins 1/2 on the long axis",
     "result": "pass"
    },
    {
     "text": "Footprint vs Bourns' Recommended Pad Layout (p.2; CR0603: gap a 0.70 to 0.90, overall b 2.00 to 2.20, width c 0.80 to 1.00 mm): the KiCad pads give gap 0.85 and width 0.95 mm (both in range) and overall 2.45 mm, 0.25 mm longer than the recommended maximum; they cover the terminations and are kept as built on Adom boards",
     "result": "note"
    },
    {
     "text": "3D body 1.60 x 0.80 x 0.45 mm against CR0603 L 1.60±0.10, W 0.80±0.10, T 0.45±0.10 mm (p.2): nominal; Z-up, seated on z = 0, centred on the pads",
     "result": "pass"
    },
    {
     "text": "Distributors: DigiKey CR0603-FX-4702ELFTR-ND and Mouser 652-CR0603FX-4702ELF kept; both looked up by part number on 2026-10-27 and return Bourns CR0603-FX-4702ELF (47 kΩ, 1%, 1/10 W, 0603). LCSC stays false with its existing note",
     "result": "pass"
    },
    {
     "text": "Symbol and footprint Datasheet properties point at the manufacturer datasheet URL",
     "result": "pass"
    },
    {
     "text": "Symbol Datasheet / MPN / Manufacturer / DigiKey / Mouser / LCSC properties agree with page.json; footprint Datasheet property points at the manufacturer datasheet URL",
     "result": "pass"
    },
    {
     "text": "component-page-verify: all checks pass",
     "result": "pass"
    }
   ],
   "evidence": [
    {
     "label": "datasheet (Bourns)",
     "href": "https://bourns.com/docs/product-datasheets/cr.pdf"
    }
   ],
   "files": {
    "cr0603-fx-4702elf.kicad_sym": "ee95279892c354d64373f6346c9703972b478c52abf613fb0608be5766849ef9",
    "cr0603-fx-4702elf.kicad_mod": "d4e66e2921e7a51b09df195794831a93a041371ae0cc72cb0671c0a77fb4bda8",
    "cr0603-fx-4702elf.step": "1875571c326d0d9e96f36b4efeb8094068ef7619f0a449c781caf0b49c2e5861"
   }
  }
 ]
}