component
1812L020PR
Public Made by Adomby adom
Littelfuse Resettable Fuses, 1812. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
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README.mdadded+38@@ -0,0 +1,38 @@+# 1812L020PR++**Littelfuse** · Resettable Fuses · 1812++1812L020PR from Littelfuse, in a 1812. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | P1 | passive | Left terminal of the resettable PTC fuse; I_hold = 0.20 A, I_trip = 0.40 A, V_max = 30 Vdc, R_min = 0.800 Ω, R_1max = 5.000 Ω at 20 °C. |+| 2 | P2 | passive | Right terminal of the resettable PTC fuse; I_max = 100 A (at V_max = 30 Vdc); trips in 0.02 s at 8.00 A; P_d typ = 0.8 W in tripped state. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Littelfuse |+| Package | 1812 |+| Category | Circuit Protection |+| Pins | 2 |++## CAD (KiCad official)++- Symbol: `1812L020PR`+- Footprint: `Resistor_SMD:R_1812_4532Metric`+- 3D model: 1812 (KiCad packages3D, STEP)+- 3D model files: `1812l020pr-etched.step` / `1812l020pr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1812l020pr.step` / `1812l020pr.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Littelfuse datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893726274306048) (7 pp, sha256 `6208de21968a51c9`, retrieved 2026-09-23, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-sonnet-4-6` (text+vision), consensus `claude-opus-4-7` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/1812l020pr-datasheet.pdf)
page.jsonadded+107@@ -0,0 +1,107 @@+{+ "slug": "1812l020pr",+ "version": "0.1.0",+ "type": "component",+ "description": "Littelfuse Resettable Fuses, 1812. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "circuit protection",+ "1812l020pr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "1812l020pr.kicad_sym",+ "1812l020pr.kicad_mod",+ "1812l020pr.glb",+ "1812l020pr.step",+ "1812l020pr.lbr",+ "docs/hero.png",+ "docs/1812l020pr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "1812L020PR",+ "manufacturer": "Littelfuse",+ "package": "1812",+ "pin_count": 2,+ "category": "Circuit Protection",+ "subcategory": "Resettable Fuses",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893726274306048",+ "parts": {+ "symbol": "1812l020pr.kicad_sym",+ "footprint": "1812l020pr.kicad_mod",+ "model_3d": "1812l020pr-etched.glb",+ "model_3d_plain": "1812l020pr.glb",+ "model_3d_step": "1812l020pr-etched.step",+ "model_3d_step_plain": "1812l020pr.step",+ "lbr": "1812l020pr.lbr"+ },+ "distributor_links": {+ "lcsc": "C151167"+ },+ "pins": [+ {+ "number": "1",+ "name": "P1",+ "type": "passive",+ "description": "Left terminal of the resettable PTC fuse; I_hold = 0.20 A, I_trip = 0.40 A, V_max = 30 Vdc, R_min = 0.800 Ω, R_1max = 5.000 Ω at 20 °C."+ },+ {+ "number": "2",+ "name": "P2",+ "type": "passive",+ "description": "Right terminal of the resettable PTC fuse; I_max = 100 A (at V_max = 30 Vdc); trips in 0.02 s at 8.00 A; P_d typ = 0.8 W in tripped state."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-sonnet-4-6",+ "primary_mode": "text+vision",+ "consensus_model": "claude-opus-4-7",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "vision extraction: provenance cannot be text-verified; needs consensus"+ ],+ "pages_sent": 7,+ "cost_usd": 0.2796,+ "at": "2026-09-23T14:53:09"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893726274306048",+ "pages": 7,+ "sha256": "6208de21968a51c9",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 2,+ "described": 2,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}