component
NCN5120MNTWG
Public Made by Adomby adom
onsemi Interface - Specialized, QFN-40(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "ncn5120mntwg",
"title": "NCN5120MNTWG",
"brief": "onsemi Interface - Specialized, QFN-40(6x6). 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",
"interface ics",
"ncn5120mntwg",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "NCN5120MNTWG",
"manufacturer": "onsemi",
"package": "QFN-40(6x6)",
"pin_count": 41,
"category": "Interface ICs",
"subcategory": "Interface - Specialized",
"datasheet": "https://www.onsemi.com/pdf/datasheet/ncn5120mntw-d.pdf",
"parts": {
"symbol": "ncn5120mntwg.kicad_sym",
"footprint": "ncn5120mntwg.kicad_mod",
"model_3d": "ncn5120mntwg-hero.glb",
"model_3d_plain": "ncn5120mntwg-etched.glb",
"model_3d_step": "ncn5120mntwg-etched.step",
"model_3d_step_plain": "ncn5120mntwg.step",
"lbr": "ncn5120mntwg.lbr"
},
"distributor_links": {
"lcsc": "C130364",
"digikey": "2832-NCN5120MNTWGTR-ND",
"mouser": "863-NCN5120MNTWG"
},
"distributor_check": {
"checked_at": "2026-10-24T00:10:05Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "2832-NCN5120MNTWGTR-ND",
"status": "found",
"lifecycle": "Obsolete"
},
"mouser": {
"pn": "863-NCN5120MNTWG",
"status": "found",
"lifecycle": "End of Life"
}
},
"pins": [
{
"number": "1",
"name": "VSSA",
"type": "power_in",
"description": "Analog supply voltage ground."
},
{
"number": "2",
"name": "VBUS2",
"type": "power_in",
"description": "Ground for the KNX transmitter."
},
{
"number": "3",
"name": "TXO",
"type": "output",
"description": "KNX transmitter analog output (Type 1, 60 V protected structure)."
},
{
"number": "4",
"name": "CCP",
"type": "passive",
"description": "AC coupling external capacitor connection (analog I/O, Type 2)."
},
{
"number": "5",
"name": "CAV",
"type": "passive",
"description": "Capacitor connection to the average bus DC voltage (analog I/O, Type 3)."
},
{
"number": "6",
"name": "VBUS1",
"type": "power_in",
"description": "KNX power supply input (Type 5)."
},
{
"number": "7",
"name": "CEQ1",
"type": "passive",
"description": "Capacitor connection 1 for defining the equalization pulse (analog I/O, Type 4)."
},
{
"number": "8",
"name": "CEQ2",
"type": "passive",
"description": "Capacitor connection 2 for defining the equalization pulse (analog I/O, Type 4)."
},
{
"number": "9",
"name": "VFILT",
"type": "passive",
"description": "Filtered bus voltage (supply, Type 5)."
},
{
"number": "10",
"name": "V20V",
"type": "power_out",
"description": "20 V supply output (Type 5)."
},
{
"number": "11",
"name": "VDD2MV",
"type": "input",
"description": "Voltage monitor of Voltage Regulator 2 (analog input, Type 8)."
},
{
"number": "12",
"name": "VDD2MC",
"type": "input",
"description": "Current monitor input 1 of Voltage Regulator 2 (analog input, Type 9)."
},
{
"number": "13",
"name": "VDD2",
"type": "input",
"description": "Current monitor input 2 of Voltage Regulator 2 (analog input, Type 8)."
},
{
"number": "14",
"name": "VSS2",
"type": "power_in",
"description": "Voltage Regulator 2 ground."
},
{
"number": "15",
"name": "VSW2",
"type": "output",
"description": "Switch output of Voltage Regulator 2 (analog output, Type 6)."
},
{
"number": "16",
"name": "VIN",
"type": "power_in",
"description": "Power supply input for Voltage Regulators 1 and 2 (Type 5)."
},
{
"number": "17",
"name": "VSW1",
"type": "output",
"description": "Switch output of Voltage Regulator 1 (analog output, Type 6)."
},
{
"number": "18",
"name": "VSS1",
"type": "power_in",
"description": "Voltage Regulator 1 ground."
},
{
"number": "19",
"name": "VDD1",
"type": "input",
"description": "Current input 2 and voltage monitor input of Voltage Regulator 1 (analog input, Type 8)."
},
{
"number": "20",
"name": "VDD1M",
"type": "input",
"description": "Current monitor input 1 of Voltage Regulator 1 (analog input, Type 9)."
},
{
"number": "21",
"name": "NC",
"type": "unconnected",
"description": "Not connected (do not connect)."
},
{
"number": "22",
"name": "NC",
"type": "unconnected",
"description": "Not connected (do not connect)."
},
{
"number": "23",
"name": "MODE1",
"type": "input",
"description": "Mode selection input 1 (digital input, Type 12)."
},
{
"number": "24",
"name": "MODE2",
"type": "input",
"description": "Mode selection input 2 (digital input, Type 12)."
},
{
"number": "25",
"name": "TREQ",
"type": "input",
"description": "Transmit request input (digital input, Type 12)."
},
{
"number": "26",
"name": "CSB/UC1",
"type": "bidirectional",
"description": "Chip select output (SPI) or configuration input (UART), type depending on MODE1/MODE2 state."
},
{
"number": "27",
"name": "SDI/RXD",
"type": "input",
"description": "Serial data input (SPI) or receive input (UART) (digital input, Type 14)."
},
{
"number": "28",
"name": "SDO/TXD",
"type": "output",
"description": "Serial data output (SPI) or transmit output (UART) (digital output, Type 13)."
},
{
"number": "29",
"name": "SCK/UC2",
"type": "bidirectional",
"description": "Serial clock output (SPI) or configuration input (UART), type depending on MODE1/MODE2 state."
},
{
"number": "30",
"name": "VDDD",
"type": "power_in",
"description": "Digital supply voltage input (Type 7)."
},
{
"number": "31",
"name": "VSSD",
"type": "power_in",
"description": "Digital supply voltage ground."
},
{
"number": "32",
"name": "XCLK",
"type": "output",
"description": "Oscillator clock output (digital output, Type 13)."
},
{
"number": "33",
"name": "XSEL",
"type": "input",
"description": "Clock selection, quartz or digital clock (digital input, Type 12)."
},
{
"number": "34",
"name": "XTAL2",
"type": "bidirectional",
"description": "Clock generator output (quartz) or input (digital clock), depending on XSEL."
},
{
"number": "35",
"name": "XTAL1",
"type": "input",
"description": "Clock generator input for quartz (analog input, Type 10)."
},
{
"number": "36",
"name": "SAVEB",
"type": "output",
"description": "Save signal, open drain with pull-up (digital output, Type 15)."
},
{
"number": "37",
"name": "RESETB",
"type": "output",
"description": "Reset signal, open drain with pull-up (digital output, Type 15)."
},
{
"number": "38",
"name": "FANIN/WAKE",
"type": "input",
"description": "Fan-in and wake-up input (digital input, Type 11)."
},
{
"number": "39",
"name": "TESTOUT",
"type": "unconnected",
"description": "Test output (analog output); do not connect."
},
{
"number": "40",
"name": "VDDA",
"type": "power_in",
"description": "Analog supply voltage input (Type 7)."
},
{
"number": "41",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"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",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The exposed thermal pad has no pin number in the text. Page 55 says it must be soldered to the PCB g; The datasheet lists pin 3 as 'TX0' in the table and 'TXO' in the figures. I used TXO.; The datasheet only calls these 'Supply' or 'Analog I/O'. The passive and power types are my interpre",
"2/41 pins cited to the wrong page (name found elsewhere): ['34:XTAL2@p4', '35:XTAL1@p4']"
],
"pages_sent": 7,
"cost_usd": 0.1335,
"at": "2026-10-24T00:09:50"
},
"datasheet": {
"url": "https://www.onsemi.com/pdf/datasheet/ncn5120mntw-d.pdf",
"pages": 56,
"sha256": "822da73315c1b8da",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 41,
"described": 41,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "ncn5120mntwg.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6,
6,
1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "e5b4286c2329085d9ef7f90d5eb5bf41a435241ecc1baaf1383823b6d6a946ae",
"checked": "2026-10-24",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ncn5120mntwg-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6,
6,
1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "9f571ba81eb3a676681668851ac4e385f416f8eea3b3c59c534de26d1f789891",
"checked": "2026-10-24",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "onsemi",
"Package": "QFN-40(6x6)",
"Category": "Interface ICs",
"Pins": "41"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "822da73315c1b8da521a579f239be2153e051c3c11d613ce45c0a28af29cee4d",
"rows": [
{
"name": "KNX Transmitter Output Voltage",
"symbol": "VTXO",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 45,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "KNX Transmitter Output Current",
"symbol": "ITXO",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 250,
"conditions": "Room temperature, 27 ohm shunt resistor for transmitter, 250 mA over temperature range",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Voltage on CCP-pin",
"symbol": "VCCP",
"kind": "absolute_maximum",
"unit": "V",
"min": -10.5,
"typ": null,
"max": 14.5,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Voltage on VBUS1-pin",
"symbol": "VBUS1",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 45,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Current Consumption VBUS1-pin",
"symbol": "IBUS1",
"kind": "absolute_maximum",
"unit": "mA",
"min": 0,
"typ": null,
"max": 60,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Voltage on VFILT-pin",
"symbol": "VFILT",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 45,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Voltage on V20V-pin",
"symbol": "V20V",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 25,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Voltage on VDD2MC-pin",
"symbol": "VDD2MC",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 45,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Voltage on VDD2-pin",
"symbol": "VDD2",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 45,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Voltage on VSW1- and VSW2-pin",
"symbol": "VSW",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 45,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Voltage on VIN-pin",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 45,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Voltage on VDD1-pin",
"symbol": "VDD1",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Voltage on digital pins",
"symbol": "VDIG",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "MODE1, MODE2, TREQ, CSB/UC1, SDI/TXD, SDO/RXD, SCK/UC2, XCLK, XSEL, SAVEB, RESETB, FANIN/WAKE",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Storage temperature",
"symbol": "TST",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Junction Temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": -25,
"typ": null,
"max": 155,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Human Body Model ESD immunity",
"symbol": "VHBM",
"kind": "absolute_maximum",
"unit": "kV",
"min": -2,
"typ": null,
"max": 2,
"conditions": "JEDEC JESD22-A114",
"source_page": 6,
"source": "datasheet"
},
{
"name": "VBUS1 Voltage",
"symbol": "VBUS1",
"kind": "recommended_operating",
"unit": "V",
"min": 20,
"typ": null,
"max": 33,
"conditions": "DC value",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Digital and Analog Supply Voltage",
"symbol": "VDD",
"kind": "recommended_operating",
"unit": "V",
"min": 3.13,
"typ": null,
"max": 3.47,
"conditions": "VDDD and VDDA pins",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Input Voltage DC-DC Converter 1 and 2",
"symbol": "VIN",
"kind": "recommended_operating",
"unit": "V",
"min": 8.47,
"typ": null,
"max": 33,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Input Voltage on VDD1-pin",
"symbol": "VDD1",
"kind": "recommended_operating",
"unit": "V",
"min": 3.13,
"typ": null,
"max": 3.47,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Input Voltage on VDD2-pin",
"symbol": "VDD2",
"kind": "recommended_operating",
"unit": "V",
"min": 3.1,
"typ": null,
"max": 21,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Ambient Temperature",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -25,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Junction Temperature",
"symbol": "TJ",
"kind": "recommended_operating",
"unit": "°C",
"min": -25,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Sleep Mode Current Consumption",
"symbol": "ISLEEP",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 1.35,
"max": 1.8,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Undervoltage release level",
"symbol": "VBUSH",
"kind": "electrical",
"unit": "V",
"min": 17.1,
"typ": 18,
"max": 18.9,
"conditions": "VBUS1 rising, see Figure 4",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Undervoltage trigger level",
"symbol": "VBUSL",
"kind": "electrical",
"unit": "V",
"min": 15.9,
"typ": 16.8,
"max": 17.7,
"conditions": "VBUS1 falling, see Figure 4",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Bus bus DC voltage",
"symbol": "VBUS1",
"kind": "electrical",
"unit": "V",
"min": 20,
"typ": null,
"max": 33,
"conditions": "Excluding active and equalization pulse",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Digital Power Supply",
"symbol": "VDDD",
"kind": "electrical",
"unit": "V",
"min": 3.13,
"typ": 3.3,
"max": 3.47,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Analog Power Supply",
"symbol": "VDDA",
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