component
0501012.WR
Public Made by Adomby adom
Littelfuse Disposable Fuses, 1206. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312
{
"schema_version": 1,
"type": "component",
"slug": "0501012-wr",
"title": "0501012.WR",
"brief": "Littelfuse Disposable Fuses, 1206. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"circuit protection",
"0501012.wr",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "0501012.WR",
"manufacturer": "Littelfuse",
"package": "1206",
"pin_count": 2,
"category": "Circuit Protection",
"subcategory": "Disposable Fuses",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588903825894096896",
"parts": {
"symbol": "0501012-wr.kicad_sym",
"footprint": "0501012-wr.kicad_mod",
"model_3d": "0501012-wr-hero.glb",
"model_3d_plain": "0501012-wr-etched.glb",
"model_3d_step": "0501012-wr-etched.step",
"model_3d_step_plain": "0501012-wr.step",
"lbr": "0501012-wr.lbr"
},
"distributor_links": {
"lcsc": "C371156"
},
"distributor_check": {
"checked_at": "2026-10-17T15:41:23Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "1",
"type": "passive",
"description": "Fuse terminal 1 (unpolarized, Ag/Ni/Sn termination); 10A-20A rated, 32 V max, 150 A DC interrupting rating at 32 VDC."
},
{
"number": "2",
"name": "2",
"type": "passive",
"description": "Fuse terminal 2 (unpolarized, Ag/Ni/Sn termination); 10A-20A rated, 32 V max, 150 A DC interrupting rating at 32 VDC."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-sonnet-5-5",
"primary_mode": "text+vision",
"consensus_model": "claude-opus-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The datasheet drawing shows two end terminations on the 1206 fuse but gives no pin numbers or names.",
"vision extraction: provenance cannot be text-verified; needs consensus"
],
"pages_sent": 3,
"cost_usd": 0.1041,
"at": "2026-10-17T15:39:28"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588903825894096896",
"pages": 3,
"sha256": "15c363790431c053",
"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"
},
"models_3d": [
{
"file": "0501012-wr.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
3.2,
1.6,
0.55
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "5e6dcbe286696143d35a8ea37d91eef4b54ff3d1bd7c2c2b4dedda83d3f8e203",
"checked": "2026-10-17",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "0501012-wr-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
3.2,
1.6,
0.55
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "76f608d6e2f47e5f1a7fdd030508737d9006601e3e6640c48a269caad7d315e7",
"checked": "2026-10-17",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Littelfuse",
"Package": "1206",
"Category": "Circuit Protection",
"Pins": "2"
},
"appearance": {
"contacts": {
"quote": "Terminations: Ag / Ni / Sn (100% Lead-free) Element Cover Coating: Lead-free Glass",
"page": 3,
"doc": "ds.pdf",
"plating": "tin"
},
"version": 1,
"datasheet_sha256": "15c363790431c053d76f4e5166d69f123c1c5de73d13991d073224dc22278b7d"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "15c363790431c053d76f4e5166d69f123c1c5de73d13991d073224dc22278b7d",
"rows": [
{
"name": "Opening time at 25ºC, minimum",
"symbol": "",
"kind": "electrical",
"unit": "Hours",
"min": 4,
"typ": null,
"max": null,
"conditions": "100% of ampere rating, 10A – 20A, at 25ºC",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Opening time at 25ºC, maximum",
"symbol": "",
"kind": "electrical",
"unit": "Seconds",
"min": null,
"typ": null,
"max": 5,
"conditions": "350% of ampere rating, 10A – 20A, at 25ºC",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Max. Voltage Rating",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 32,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Operating Temperature",
"symbol": "",
"kind": "recommended_operating",
"unit": "ºC",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Continuous operation current limit",
"symbol": "",
"kind": "recommended_operating",
"unit": "% of rated current",
"min": null,
"typ": null,
"max": 80,
"conditions": "Continuous operation; devices should be operated continuously at no more than 80% rated current",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Nominal Resistance",
"symbol": "",
"kind": "electrical",
"unit": "Ohms",
"min": null,
"typ": 0.00311,
"max": null,
"conditions": "Measured with < 10% rated current",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Nominal Melting I2T",
"symbol": "I2T",
"kind": "electrical",
"unit": "A2Sec.",
"min": null,
"typ": 20.341,
"max": null,
"conditions": "Measured at 1 msec. opening time",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Nominal Voltage Drop At Rated Current",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.04927,
"max": null,
"conditions": "At rated current, after temperature has stabilized, fuse mounted with 3-oz Cu trace",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Nominal Power Dissipation At Rated Current",
"symbol": "",
"kind": "electrical",
"unit": "W",
"min": null,
"typ": 0.5912,
"max": null,
"conditions": "At rated current",
"source_page": 1,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"0501012.wr"
],
"discovery_pitch": "0501012.WR (Littelfuse) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"0501012-wr.kicad_sym",
"0501012-wr.kicad_mod",
"0501012-wr.glb",
"0501012-wr.step",
"0501012-wr.lbr",
"docs/hero.png",
"docs/0501012-wr-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"0501012-wr-hero.glb",
"0501012-wr-hero.overlay.json",
"0501012-wr-etched.glb"
],
"visibility": {
"public": true
}
}