component
BULN2803LVS
Public Made by Adomby adom
BORN Darlington Transistor Arrays, SOIC-18-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684
{
"schema_version": 1,
"type": "component",
"slug": "buln2803lvs",
"title": "BULN2803LVS",
"brief": "BORN Darlington Transistor Arrays, SOIC-18-300mil. 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",
"transistors",
"buln2803lvs",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "BULN2803LVS",
"manufacturer": "BORN",
"package": "SOIC-18-300mil",
"pin_count": 18,
"category": "Transistors",
"subcategory": "Darlington Transistor Arrays",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/db290778af1c60fe285581f3f169b14c.pdf",
"parts": {
"symbol": "buln2803lvs.kicad_sym",
"footprint": "buln2803lvs.kicad_mod",
"model_3d": "buln2803lvs-hero.glb",
"model_3d_plain": "buln2803lvs-etched.glb",
"model_3d_step": "buln2803lvs-etched.step",
"model_3d_step_plain": "buln2803lvs.step",
"lbr": "buln2803lvs.lbr"
},
"distributor_links": {
"lcsc": "C406219"
},
"distributor_check": {
"checked_at": "2026-11-12T06:55:38Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "1B",
"type": "input",
"description": "Channel 1 Darlington base input, which the datasheet states supports 1.8 V low-voltage input and TTL/CMOS logic signals."
},
{
"number": "2",
"name": "2B",
"type": "input",
"description": "Channel 2 Darlington base input, which the datasheet states supports 1.8 V low-voltage input and TTL/CMOS logic signals."
},
{
"number": "3",
"name": "3B",
"type": "input",
"description": "Channel 3 Darlington base input, which the datasheet states supports 1.8 V low-voltage input and TTL/CMOS logic signals."
},
{
"number": "4",
"name": "4B",
"type": "input",
"description": "Channel 4 Darlington base input, which the datasheet states supports 1.8 V low-voltage input and TTL/CMOS logic signals."
},
{
"number": "5",
"name": "5B",
"type": "input",
"description": "Channel 5 Darlington base input, which the datasheet states supports 1.8 V low-voltage input and TTL/CMOS logic signals."
},
{
"number": "6",
"name": "6B",
"type": "input",
"description": "Channel 6 Darlington base input, which the datasheet states supports 1.8 V low-voltage input and TTL/CMOS logic signals."
},
{
"number": "7",
"name": "7B",
"type": "input",
"description": "Channel 7 Darlington base input, which the datasheet states supports 1.8 V low-voltage input and TTL/CMOS logic signals."
},
{
"number": "8",
"name": "8B",
"type": "input",
"description": "Channel 8 Darlington base input, which the datasheet states supports 1.8 V low-voltage input and TTL/CMOS logic signals."
},
{
"number": "9",
"name": "GND",
"type": "power_in",
"description": "Common emitter shared by all channels, typically tied to ground."
},
{
"number": "10",
"name": "COM",
"type": "bidirectional",
"description": "Common cathode node for the flyback clamp diodes, which the datasheet states is required for inductive loads."
},
{
"number": "11",
"name": "8C",
"type": "output",
"description": "Channel 8 Darlington collector output, rated at 500 mA per pair with a 20 V collector-to-emitter maximum."
},
{
"number": "12",
"name": "7C",
"type": "output",
"description": "Channel 7 Darlington collector output, rated at 500 mA per pair with a 20 V collector-to-emitter maximum."
},
{
"number": "13",
"name": "6C",
"type": "output",
"description": "Channel 6 Darlington collector output, rated at 500 mA per pair with a 20 V collector-to-emitter maximum."
},
{
"number": "14",
"name": "5C",
"type": "output",
"description": "Channel 5 Darlington collector output, rated at 500 mA per pair with a 20 V collector-to-emitter maximum."
},
{
"number": "15",
"name": "4C",
"type": "output",
"description": "Channel 4 Darlington collector output, rated at 500 mA per pair with a 20 V collector-to-emitter maximum."
},
{
"number": "16",
"name": "3C",
"type": "output",
"description": "Channel 3 Darlington collector output, rated at 500 mA per pair with a 20 V collector-to-emitter maximum."
},
{
"number": "17",
"name": "2C",
"type": "output",
"description": "Channel 2 Darlington collector output, rated at 500 mA per pair with a 20 V collector-to-emitter maximum."
},
{
"number": "18",
"name": "1C",
"type": "output",
"description": "Channel 1 Darlington collector output, rated at 500 mA per pair with a 20 V collector-to-emitter maximum."
}
],
"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 MPN is BULN2803LVS, but the device marking reads BE2803LV and the characteristics table header r"
],
"pages_sent": 7,
"cost_usd": 0.0008,
"at": "2026-11-12T06:55:31"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/db290778af1c60fe285581f3f169b14c.pdf",
"pages": 7,
"sha256": "a42e279e1b36096f",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 18,
"described": 18,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "buln2803lvs.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
10.3,
11.55,
2.75
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "05ad7d4945131c76ec7b9448dd9cbb5376b56adcd564c58d93e50ca7870fab1f",
"checked": "2026-11-12",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "buln2803lvs-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
10.3,
11.55,
2.75
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "c1c84d8e99a56a03216c2775a8f2f15b21546557ac8bf34d24c740fac1abc381",
"checked": "2026-11-12",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "SOP-18",
"source_page": 7,
"D": {
"nom_mm": 11.55,
"range_mm": [
11.35,
11.75
]
},
"E1": {
"nom_mm": 7.5,
"range_mm": [
7.4,
7.6
]
},
"E": {
"nom_mm": 10.3,
"range_mm": [
9.97,
10.63
]
},
"e": {
"nom_mm": 1.27,
"range_mm": [
null,
null
]
},
"A": {
"nom_mm": 2.65,
"range_mm": [
null,
2.65
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "buln2803lvs.step",
"verdict": "PASS",
"reasons": [
"height and body within the datasheet's package drawing"
],
"by": "factory/package_fit.py"
}
}
},
"metadata": {
"specs": {
"Manufacturer": "BORN",
"Package": "SOIC-18-300mil",
"Category": "Transistors",
"Pins": "18"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "a42e279e1b36096f4a411b32962563f1d805ced9441fce398200980b5ad2c7e4",
"rows": [
{
"name": "Collector-emitter voltage",
"symbol": "VCE",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 20,
"conditions": "At 25°C free-air temperature unless otherwise noted",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Input voltage",
"symbol": "VI",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 20,
"conditions": "At 25°C free-air temperature unless otherwise noted; with respect to emitter/substrate terminal E",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Peak collector current",
"symbol": "ICP",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 500,
"conditions": "At 25°C free-air temperature unless otherwise noted",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Output clamp current",
"symbol": "IOK",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 500,
"conditions": "At 25°C free-air temperature unless otherwise noted",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Total substrate-terminal current",
"symbol": "ITE",
"kind": "absolute_maximum",
"unit": "A",
"min": null,
"typ": null,
"max": -2,
"conditions": "At 25°C free-air temperature unless otherwise noted",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Operating virtual junction temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "At 25°C free-air temperature unless otherwise noted",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Storage temperature range",
"symbol": "TSTG",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Human body model ESD rating",
"symbol": "V(ESD)",
"kind": "absolute_maximum",
"unit": "V",
"min": -2000,
"typ": null,
"max": 2000,
"conditions": "Human body model (HBM), per ANSI/ESDA/JEDEC JS-001",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Charged device model ESD rating",
"symbol": "V(ESD)",
"kind": "absolute_maximum",
"unit": "V",
"min": -500,
"typ": null,
"max": 500,
"conditions": "Charged device model (CDM), per JEDEC specification JESD22-C101",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Collector-emitter voltage",
"symbol": "V(CE)",
"kind": "recommended_operating",
"unit": "V",
"min": 0,
"typ": null,
"max": 18,
"conditions": "Over operating free-air temperature range",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Ambient temperature",
"symbol": "T(A)",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "Over operating free-air temperature range",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Junction-to-ambient thermal resistance",
"symbol": "RθJA",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 66.4,
"max": null,
"conditions": "SOIC 18 pins",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Junction-to-case (top) thermal resistance",
"symbol": "RθJC(top)",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 29.5,
"max": null,
"conditions": "SOIC 18 pins",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Junction-to-board thermal resistance",
"symbol": "RθJB",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 33,
"max": null,
"conditions": "SOIC 18 pins",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Junction-to-top characterization parameter",
"symbol": "ψJT",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 6,
"max": null,
"conditions": "SOIC 18 pins",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Junction-to-board characterization parameter",
"symbol": "ψJB",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 32.5,
"max": null,
"conditions": "SOIC 18 pins",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Input current-on",
"symbol": "VI(on)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 2,
"max": 2.1,
"conditions": "VCE = 1.5 V, IC = 100 mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Input current-on",
"symbol": "VI(on)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 2.2,
"max": 2.3,
"conditions": "VCE = 1.5 V, IC = 200 mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Collector-emitter saturation voltage",
"symbol": "VCE(sat)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 2,
"max": 2.1,
"conditions": "VI = 1.8 V, IC = 100 mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Collector-emitter saturation voltage",
"symbol": "VCE(sat)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 3.2,
"max": 3.3,
"conditions": "VI = 1.8 V, IC = 200 mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Collector-emitter saturation voltage",
"symbol": "VCE(sat)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 1.5,
"max": 1.6,
"conditions": "VI = 3.3 V, IC = 300 mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Collector-emitter saturation voltage",
"symbol": "VCE(sat)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 1.8,
"max": 1.9,
"conditions": "VI = 3.3 V, IC = 500 mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Clamp diode forward voltage",
"symbol": "VF",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 1.4,
"max": 1.6,
"conditions": "IF = 350 mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Output leakage current",
"symbol": "ICEX",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": null,
"max": 50,
"conditions": "VCE = 18 V, IIN = 0 V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Output leakage current",
"symbol": "ICEX",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": null,
"max": 100,
"conditions": "VIN = 0 V (Figure 2)",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Input current",
"symbol": "IIN",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 0.6,
"max": 1.2,
"conditions": "VIN = 1.8 V, IC = 250 mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Input current",
"symbol": "IIN",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 1.6,
"max": 3,
"conditions": "VIN = 2.4 V, IC = 250 mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Input current",
"symbol": "IIN",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 3.2,
"max": 4.5,
"conditions": "VIN = 3.3 V, IC = 250 mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Clamp reverse current",
"symbol": "IR",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": null,
"max": 100,
"conditions": "VR = 18 V",
"source_page": 4,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"buln2803lvs"
],
"discovery_pitch": "BULN2803LVS (BORN) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"buln2803lvs.kicad_sym",
"buln2803lvs.kicad_mod",
"buln2803lvs.glb",
"buln2803lvs.step",
"buln2803lvs.lbr",
"docs/hero.png",
"docs/buln2803lvs-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"buln2803lvs-hero.glb",
"buln2803lvs-hero.overlay.json",
"buln2803lvs-etched.glb"
],
"visibility": {
"public": true
}
}