component
MCS1806GS-3-40-Z
Public Made by Adomby adom
Monolithic Power Systems Current Sensors, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722
{
"schema_version": 1,
"type": "component",
"slug": "mcs1806gs-3-40-z",
"title": "MCS1806GS-3-40-Z",
"brief": "Monolithic Power Systems Current Sensors, SOIC-8. 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",
"magnetic sensors",
"mcs1806gs-3-40-z",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "MCS1806GS-3-40-Z",
"manufacturer": "Monolithic Power Systems",
"package": "SOIC-8",
"pin_count": 8,
"category": "Magnetic Sensors",
"subcategory": "Current Sensors",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603399958121107456",
"parts": {
"symbol": "mcs1806gs-3-40-z.kicad_sym",
"footprint": "mcs1806gs-3-40-z.kicad_mod",
"model_3d": "mcs1806gs-3-40-z-hero.glb",
"model_3d_plain": "mcs1806gs-3-40-z-etched.glb",
"model_3d_step": "mcs1806gs-3-40-z-etched.step",
"model_3d_step_plain": "mcs1806gs-3-40-z.step",
"lbr": "mcs1806gs-3-40-z.lbr"
},
"distributor_links": {
"lcsc": "C7301255",
"digikey": "1589-MCS1806GS-3-40-ZTR-ND",
"mouser": "946-MCS1806GS-3-40-Z"
},
"distributor_check": {
"checked_at": "2026-10-21T01:11:43Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "1589-MCS1806GS-3-40-ZTR-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "946-MCS1806GS-3-40-Z",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "IP+",
"type": "passive",
"description": "Primary current (+) terminal for the current being sampled; internally connected to pin 2 (IP+)."
},
{
"number": "2",
"name": "IP+",
"type": "passive",
"description": "Primary current (+) terminal for the current being sampled; internally connected to pin 1 (IP+)."
},
{
"number": "3",
"name": "IP-",
"type": "passive",
"description": "Primary current (-) terminal for the current being sampled; internally connected to pin 4 (IP-)."
},
{
"number": "4",
"name": "IP-",
"type": "passive",
"description": "Primary current (-) terminal for the current being sampled; internally connected to pin 3 (IP-)."
},
{
"number": "5",
"name": "GND",
"type": "power_in",
"description": "Signal ground terminal pin."
},
{
"number": "6",
"name": "FILT",
"type": "passive",
"description": "Terminal for the external capacitor CF that sets the bandwidth (see Figure 9); can be left floating if bandwidth setting is not required."
},
{
"number": "7",
"name": "VOUT",
"type": "output",
"description": "Analog output, proportional to the primary current within the specified range (IPMAX = ±40A for this variant)."
},
{
"number": "8",
"name": "VCC",
"type": "power_in",
"description": "Voltage supply, 3.0V to 3.6V for the 3.3V option; bypass with a 1µF low-ESR ceramic capacitor placed as close to the VCC pin as possible."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The page 2 TOP VIEW text extracts the labels in a sequence (IP+, IP+, IP-, IP-, VCC, VOUT, FILT, GND; The datasheet does not state a pin type for the primary conductor pins (IP+/IP-); 'passive' was assi; Only the 3.3V option applies to MCS1806GS-3-40-Z; the VCC description uses the 3.0V to 3.6V range fr"
],
"pages_sent": 19,
"cost_usd": 0.0818,
"at": "2026-10-21T01:07:03"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603399958121107456",
"pages": 19,
"sha256": "48cef136766659b9",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 8,
"described": 8,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "mcs1806gs-3-40-z.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6,
4.9,
1.75
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
"checked": "2026-10-21",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "mcs1806gs-3-40-z-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6,
4.9,
1.75
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "ecf18a65a631f06876e0b99736e7b98d4e4d1159f6cdcfed957e5c658cd4b8c8",
"checked": "2026-10-21",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Monolithic Power Systems",
"Package": "SOIC-8",
"Category": "Magnetic Sensors",
"Pins": "8"
},
"appearance": {
"contacts": {
"quote": "the primary conductor via the IP+ and IPpins. 2. Ensure that the copper covers both the top",
"page": 15,
"doc": "ds.pdf",
"material": "copper"
},
"version": 1,
"datasheet_sha256": "48cef136766659b95f7c6baea8d5154f7e488b543bd1f610321d1501c54b61f4"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "48cef136766659b95f7c6baea8d5154f7e488b543bd1f610321d1501c54b61f4",
"rows": [
{
"name": "Optimized accuracy range",
"symbol": "IP",
"kind": "electrical",
"unit": "A",
"min": -40,
"typ": null,
"max": 40,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Sensitivity error",
"symbol": "ESENS",
"kind": "tolerance",
"unit": "%",
"min": -2,
"typ": null,
"max": 2,
"conditions": "IP = 40A, TJ = 25°C to 125°C",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Sensitivity error",
"symbol": "ESENS",
"kind": "tolerance",
"unit": "%",
"min": -1.5,
"typ": null,
"max": 1.5,
"conditions": "IP = 40A, TJ = -40°C to +25°C",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Offset voltage",
"symbol": "VOE",
"kind": "tolerance",
"unit": "mV",
"min": -10,
"typ": null,
"max": 10,
"conditions": "IP = 0A, TJ = 25°C to 125°C",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Offset voltage",
"symbol": "VOE",
"kind": "tolerance",
"unit": "mV",
"min": -5,
"typ": null,
"max": 5,
"conditions": "IP = 0A, TJ = -40°C to +25°C",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Total output error",
"symbol": "ETOT",
"kind": "tolerance",
"unit": "%",
"min": -2.5,
"typ": null,
"max": 2.5,
"conditions": "IP = 40A, TJ = 25°C to 125°C",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Total output error",
"symbol": "ETOT",
"kind": "tolerance",
"unit": "%",
"min": -1.5,
"typ": null,
"max": 1.5,
"conditions": "IP = 40A, TJ = -40°C to +25°C",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Sensitivity error lifetime drift",
"symbol": "ESENS(D)",
"kind": "tolerance",
"unit": "%",
"min": -1,
"typ": null,
"max": 1,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Total output error lifetime drift",
"symbol": "ETOT(D)",
"kind": "tolerance",
"unit": "%",
"min": -1,
"typ": null,
"max": 1,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Supply voltage (3.3V option)",
"symbol": "VCC",
"kind": "electrical",
"unit": "V",
"min": 3,
"typ": null,
"max": 3.6,
"conditions": "3.3V option",
"source_page": 5,
"source": "datasheet"
},
{
"name": "VCC under-voltage lockout (UVLO) threshold",
"symbol": "VCC_UVLO",
"kind": "electrical",
"unit": "V",
"min": 2,
"typ": 2.5,
"max": 3,
"conditions": "VCC rising",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Ratiometry coefficient",
"symbol": "KSENS",
"kind": "tolerance",
"unit": "%",
"min": 98,
"typ": 100,
"max": 102,
"conditions": "VCC from VCC_MIN to VCC_MAX",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Ratiometry coefficient",
"symbol": "KVO",
"kind": "tolerance",
"unit": "%",
"min": 99,
"typ": 100,
"max": 101,
"conditions": "VCC from VCC_MIN to VCC_MAX",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Hall plate matching",
"symbol": "MH",
"kind": "tolerance",
"unit": "%",
"min": -1,
"typ": null,
"max": 1,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Sensitivity",
"symbol": "SENS",
"kind": "electrical",
"unit": "mV/A",
"min": null,
"typ": 33,
"max": null,
"conditions": "-40A ≤ IP ≤ +40A, TJ = 25°C",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Output capacitance load",
"symbol": "CL",
"kind": "electrical",
"unit": "nF",
"min": null,
"typ": 10,
"max": null,
"conditions": "From VOUT to GND",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Output resistive load",
"symbol": "RL",
"kind": "electrical",
"unit": "kΩ",
"min": null,
"typ": 4.7,
"max": null,
"conditions": "From VOUT to GND",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Internal filter resistance",
"symbol": "RFI",
"kind": "electrical",
"unit": "kΩ",
"min": null,
"typ": 1.5,
"max": null,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Internal filter capacitance",
"symbol": "CFI",
"kind": "electrical",
"unit": "nF",
"min": null,
"typ": 1,
"max": null,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Primary conductor resistance",
"symbol": "RP",
"kind": "electrical",
"unit": "mΩ",
"min": null,
"typ": 0.9,
"max": null,
"conditions": "Effective",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Frequency bandwidth",
"symbol": "fBW",
"kind": "electrical",
"unit": "kHz",
"min": null,
"typ": 100,
"max": null,
"conditions": "FILT disconnected",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Power-on time",
"symbol": "tPO",
"kind": "timing",
"unit": "µs",
"min": null,
"typ": 90,
"max": null,
"conditions": "IP = IPMAX, FILT disconnected",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Rising time",
"symbol": "tR",
"kind": "timing",
"unit": "µs",
"min": null,
"typ": 4,
"max": null,
"conditions": "IP = IPMAX, FILT disconnected",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Propagation delay",
"symbol": "tPD",
"kind": "timing",
"unit": "µs",
"min": null,
"typ": 1.5,
"max": null,
"conditions": "IP = IPMAX, FILT disconnected",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Response time",
"symbol": "tRESPONSE",
"kind": "timing",
"unit": "µs",
"min": null,
"typ": 5,
"max": null,
"conditions": "IP = IPMAX, FILT disconnected",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Noise density",
"symbol": "IND",
"kind": "electrical",
"unit": "µA(RMS)/√Hz",
"min": null,
"typ": 200,
"max": null,
"conditions": "Input referred noise density",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Noise",
"symbol": "IN",
"kind": "electrical",
"unit": "mA(RMS)",
"min": null,
"typ": 50,
"max": null,
"conditions": "Input referred, 1nF on FILT (60kHz bandwidth)",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Nonlinearity",
"symbol": "ELIN",
"kind": "electrical",
"unit": "%",
"min": null,
"typ": 0.5,
"max": null,
"conditions": "Across full IP range",
"source_page": 5,
"source": "datasheet"
},
{
"name": "First Hall magnetic coupling factor",
"symbol": "PMCF1",
"kind": "electrical",
"unit": "mT/A",
"min": null,
"typ": 0.6,
"max": null,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Second Hall magnetic coupling factor",
"symbol": "PMCF2",
"kind": "electrical",
"unit": "mT/A",
"min": null,
"typ": 0.3,
"max": null,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Saturation voltage low (3.3V option)",
"symbol": "VOUT(L)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.3,
"max": null,
"conditions": "3.3V option, RL = 4.7kΩ",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Supply voltage (VCC) for the 3.3V option",
"symbol": "VCC",
"kind": "recommended_operating",
"unit": "V",
"min": 3,
"typ": null,
"max": 3.6,
"conditions": "3.3V option",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Operating junction temperature",
"symbol": "TJ",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Supply voltage (VCC)",
"symbol": "VCC",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.1,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Output voltage (VOUT)",
"symbol": "VOUT",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.1,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Filter voltage",
"symbol": "VFILT",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.1,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Junction temperature",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 165,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Storage temperature",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 165,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "ESD human body model (HBM)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "kV",
"min": -2,
"typ": null,
"max": 2,
"conditions": "Human body model (HBM)",
"source_page": 3,
"source": "datasheet"
},
{
"name": "ESD charged device model (CDM)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "kV",
"min": -2,
"typ": null,
"max": 2,
"conditions": "Charged device model (CDM)",
"source_page": 3,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"mcs1806gs-3-40-z"
],
"discovery_pitch": "MCS1806GS-3-40-Z (Monolithic Power Systems) 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",
"mcs1806gs-3-40-z.kicad_sym",
"mcs1806gs-3-40-z.kicad_mod",
"mcs1806gs-3-40-z.glb",
"mcs1806gs-3-40-z.step",
"mcs1806gs-3-40-z.lbr",
"docs/hero.png",
"docs/mcs1806gs-3-40-z-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"mcs1806gs-3-40-z-hero.glb",
"mcs1806gs-3-40-z-hero.overlay.json",
"mcs1806gs-3-40-z-etched.glb"
],
"visibility": {
"public": true
}
}