component
FRM252WFR100TN
Public Made by Adomby adom
FOJAN Current Sense Resistors / Shunt Resistors, 2512. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446
{
"schema_version": 1,
"type": "component",
"slug": "frm252wfr100tn",
"title": "FRM252WFR100TN",
"brief": "FOJAN Current Sense Resistors / Shunt Resistors, 2512. 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",
"resistors",
"frm252wfr100tn",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "FRM252WFR100TN",
"manufacturer": "FOJAN",
"package": "2512",
"pin_count": 2,
"category": "Resistors",
"subcategory": "Current Sense Resistors / Shunt Resistors",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8763505071487229952",
"parts": {
"symbol": "frm252wfr100tn.kicad_sym",
"footprint": "frm252wfr100tn.kicad_mod",
"model_3d": "frm252wfr100tn-hero.glb",
"model_3d_plain": "frm252wfr100tn-etched.glb",
"model_3d_step": "frm252wfr100tn-etched.step",
"model_3d_step_plain": "frm252wfr100tn.step",
"lbr": "frm252wfr100tn.lbr"
},
"distributor_links": {
"lcsc": "C7420048"
},
"distributor_check": {
"checked_at": "2026-10-19T13:20:40Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "1",
"type": "passive",
"description": "First terminal of the 2512 (6.4 x 3.2 mm) alloy current-sense resistor; the part is non-polarized and the terminals are interchangeable, with recommended pad a=4.0±0.1 mm, b=2.1±0.1 mm for 1 mΩ ≤ R ≤ 680 mΩ."
},
{
"number": "2",
"name": "2",
"type": "passive",
"description": "Second terminal of the 2512 alloy current-sense resistor; rated 2 W at 70 °C, 63 A rated current, resistance measured by Kelvin four-terminal sensing at the product bottom."
}
],
"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 has no pin table or pin numbering. This is a two-terminal chip resistor, so pins 1 and; The MPN suffix 'N' is not defined in the part-number code table (termination codes shown are M, blan",
"vision extraction: provenance cannot be text-verified; needs consensus"
],
"pages_sent": 12,
"cost_usd": 0.1726,
"at": "2026-10-19T13:18:31"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8763505071487229952",
"pages": 12,
"sha256": "13a1c74e6b23cc10",
"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": "frm252wfr100tn.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.3,
3.2,
0.6
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "76b2052a3c120193de7cdc0af99157b6f375e9a4af7721e3e3d012968c877f27",
"checked": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "frm252wfr100tn-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.3,
3.2,
0.6
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "645d653308520ce0daef4ec64616b09bee1db1f1de4a7e18c423ca349ac9e8c2",
"checked": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "FOJAN",
"Package": "2512",
"Category": "Resistors",
"Pins": "2"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "13a1c74e6b23cc103f7c52a55ce0edc65423850e201e50a32caf4d07cd5fd420",
"rows": [
{
"name": "Resistance tolerance (code F = ±1%)",
"symbol": "",
"kind": "tolerance",
"unit": "%",
"min": -1,
"typ": null,
"max": 1,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Temperature coefficient of resistance (2512 standard, 1–680 mΩ)",
"symbol": "TCR",
"kind": "temperature_coefficient",
"unit": "ppm/°C",
"min": -50,
"typ": null,
"max": 50,
"conditions": "Measuring points 25°C and +125°C, reference point +25°C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Rated power (2512, 2W)",
"symbol": "P70",
"kind": "electrical",
"unit": "W",
"min": null,
"typ": 2,
"max": null,
"conditions": "at P70",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Rated current (2512)",
"symbol": "",
"kind": "electrical",
"unit": "A",
"min": null,
"typ": 63,
"max": null,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Max overload current (2512)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "A",
"min": null,
"typ": null,
"max": 141,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Operating temperature range",
"symbol": "",
"kind": "recommended_operating",
"unit": "°C",
"min": -55,
"typ": null,
"max": 170,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Dielectric withstanding voltage",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V DC",
"min": null,
"typ": null,
"max": 500,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Nominal resistance (code R100)",
"symbol": "R",
"kind": "electrical",
"unit": "mΩ",
"min": null,
"typ": 100,
"max": null,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "High temperature exposure (storage) ΔR",
"symbol": "ΔR",
"kind": "tolerance",
"unit": "%",
"min": -1,
"typ": null,
"max": 1,
"conditions": "T=170℃, 1000 hrs, measurement at 24 hrs after test conclusion",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Low temperature exposure (storage) ΔR",
"symbol": "ΔR",
"kind": "tolerance",
"unit": "%",
"min": -0.5,
"typ": null,
"max": 0.5,
"conditions": "T=-55ºC, 1000 hours, measurement at 24 hrs after test conclusion",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Temperature cycling ΔR",
"symbol": "ΔR",
"kind": "tolerance",
"unit": "%",
"min": -0.5,
"typ": null,
"max": 0.5,
"conditions": "1000 cycles (-55℃ to 125℃), measurement at 24 hrs after test conclusion",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Short time overload ΔR",
"symbol": "ΔR",
"kind": "tolerance",
"unit": "%",
"min": -0.5,
"typ": null,
"max": 0.5,
"conditions": "5 X rated power for 5 s",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Moisture resistance ΔR",
"symbol": "ΔR",
"kind": "tolerance",
"unit": "%",
"min": -1,
"typ": null,
"max": 1,
"conditions": "T=24 hours / cycle, 10 cycles; steps 7a & 7b not required",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Biased humidity ΔR",
"symbol": "ΔR",
"kind": "tolerance",
"unit": "%",
"min": -0.5,
"typ": null,
"max": 0.5,
"conditions": "10% rated power at 85℃, RH 85%, 1000 hrs, measurement at 24 hrs after test conclusion",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Load life ΔR",
"symbol": "ΔR",
"kind": "tolerance",
"unit": "%",
"min": -1,
"typ": null,
"max": 1,
"conditions": "1000 h at +70 °C, 1.5 h ON, 0.5 h OFF, measurement at 24 hrs after test conclusion",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Resistance to soldering heat ΔR",
"symbol": "ΔR",
"kind": "tolerance",
"unit": "%",
"min": -0.5,
"typ": null,
"max": 0.5,
"conditions": "T=260±5℃ solder, 10±1 sec dwell",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Mechanical shock ΔR",
"symbol": "ΔR",
"kind": "tolerance",
"unit": "%",
"min": -0.5,
"typ": null,
"max": 0.5,
"conditions": "100 g's, normal duration 6 ms, half sine shock pulse",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Vibration ΔR",
"symbol": "ΔR",
"kind": "tolerance",
"unit": "%",
"min": -0.5,
"typ": null,
"max": 0.5,
"conditions": "5 g's for 20 min, 12 cycles, 10-2000 Hz",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Board flex ΔR",
"symbol": "ΔR",
"kind": "tolerance",
"unit": "%",
"min": -0.5,
"typ": null,
"max": 0.5,
"conditions": "Min 2 mm deflection, 60 s",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Thermal shock ΔR",
"symbol": "ΔR",
"kind": "tolerance",
"unit": "%",
"min": -1,
"typ": null,
"max": 1,
"conditions": "-55°C/+155°C, 1000 cycles, max transfer time 20 s, dwell 15 min",
"source_page": 7,
"source": "datasheet"
},
{
"name": "ESD ΔR",
"symbol": "ΔR",
"kind": "tolerance",
"unit": "%",
"min": -1,
"typ": null,
"max": 1,
"conditions": "Direct contact (DC): ±6kV; air discharge (AD): +12kV, +16k, +25kV",
"source_page": 7,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"frm252wfr100tn"
],
"discovery_pitch": "FRM252WFR100TN (FOJAN) 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",
"frm252wfr100tn.kicad_sym",
"frm252wfr100tn.kicad_mod",
"frm252wfr100tn.glb",
"frm252wfr100tn.step",
"frm252wfr100tn.lbr",
"docs/hero.png",
"docs/frm252wfr100tn-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"frm252wfr100tn-hero.glb",
"frm252wfr100tn-hero.overlay.json",
"frm252wfr100tn-etched.glb"
],
"visibility": {
"public": true
}
}