component
2N3906U
Public Made by Adomby adom
CBI Bipolar (BJT), SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560
{
"schema_version": 1,
"type": "component",
"slug": "2n3906u",
"title": "2N3906U",
"brief": "CBI Bipolar (BJT), SOT-89. 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-thyristors",
"2n3906u",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "2N3906U",
"manufacturer": "CBI",
"package": "SOT-89",
"pin_count": 3,
"category": "Transistors/Thyristors",
"subcategory": "Bipolar (BJT)",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588954829750480896",
"parts": {
"symbol": "2n3906u.kicad_sym",
"footprint": "2n3906u.kicad_mod",
"model_3d": "2n3906u-hero.glb",
"model_3d_plain": "2n3906u-etched.glb",
"model_3d_step": "2n3906u-etched.step",
"model_3d_step_plain": "2n3906u.step",
"lbr": "2n3906u.lbr"
},
"distributor_links": {
"lcsc": "C2928257"
},
"distributor_check": {
"checked_at": "2026-10-19T07:59:30Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "error"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "B",
"type": "input",
"description": "Base of the PNP transistor; VEBO max -6 V and VCBO/VCEO max -40 V apply to this terminal's junctions."
},
{
"number": "2",
"name": "C",
"type": "passive",
"description": "Collector of the PNP transistor; continuous collector current is rated -0.2 A and VCEO -40 V."
},
{
"number": "3",
"name": "E",
"type": "passive",
"description": "Emitter of the PNP transistor; emitter-base voltage is rated -6 V maximum."
}
],
"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: Pin assignment is taken from the page 1 package picture (1.Base 2.Collector 3.Emitter); the SOT-89 o",
"vision extraction: provenance cannot be text-verified; needs consensus"
],
"pages_sent": 3,
"cost_usd": 0.2261,
"at": "2026-10-19T07:57:36"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588954829750480896",
"pages": 3,
"sha256": "e8432ffcfda859a9",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 3,
"described": 3,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "2n3906u.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4,
4.5,
1.52
],
"zmin_mm": 0,
"centre_offset_mm": 0.05,
"footprint_binding": "identity",
"sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
"checked": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "2n3906u-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4,
4.5,
1.52
],
"zmin_mm": 0,
"centre_offset_mm": 0.05,
"footprint_binding": "identity",
"sha256": "6cc98aee0d1bc8e7b29284426293cf416a538e51ab95b73505cdc4ff020919a8",
"checked": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "CBI",
"Package": "SOT-89",
"Category": "Transistors/Thyristors",
"Pins": "3"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "e8432ffcfda859a9d448a630853b8b0ae10f09ac4adcb8ae0c438fee186bb24c",
"rows": [
{
"name": "Collector-base voltage",
"symbol": "VCBO",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": -40,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Collector-emitter voltage",
"symbol": "VCEO",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": -40,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Emitter-base voltage",
"symbol": "VEBO",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": -6,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Collector current, continuous",
"symbol": "IC",
"kind": "absolute_maximum",
"unit": "A",
"min": null,
"typ": null,
"max": -0.2,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Collector power dissipation",
"symbol": "PC",
"kind": "absolute_maximum",
"unit": "W",
"min": null,
"typ": null,
"max": 0.5,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Junction temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "℃",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Storage temperature",
"symbol": "Tstg",
"kind": "absolute_maximum",
"unit": "℃",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Thermal resistance from junction to ambient",
"symbol": "RθJA",
"kind": "thermal",
"unit": "℃/W",
"min": null,
"typ": null,
"max": 250,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Collector-base breakdown voltage",
"symbol": "V(BR)CBO",
"kind": "electrical",
"unit": "V",
"min": -40,
"typ": null,
"max": null,
"conditions": "IC=-10μA,IE=0",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Collector-emitter breakdown voltage",
"symbol": "V(BR)CEO",
"kind": "electrical",
"unit": "V",
"min": -40,
"typ": null,
"max": null,
"conditions": "IC=-1mA,IB=0",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Emitter-base breakdown voltage",
"symbol": "V(BR)EBO",
"kind": "electrical",
"unit": "V",
"min": -6,
"typ": null,
"max": null,
"conditions": "IE=-10μA,IC=0",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Collector cut-off current",
"symbol": "ICBO",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": null,
"max": -0.05,
"conditions": "VCB=-30V,IE=0",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Emitter cut-off current",
"symbol": "EBO",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": null,
"max": -0.05,
"conditions": "VEB=-6V,IC=0",
"source_page": 1,
"source": "datasheet"
},
{
"name": "DC current gain",
"symbol": "hFE(1)",
"kind": "electrical",
"unit": "",
"min": 60,
"typ": null,
"max": null,
"conditions": "VCE=-1V,IC=-0.1mA",
"source_page": 1,
"source": "datasheet"
},
{
"name": "DC current gain",
"symbol": "hFE(2)",
"kind": "electrical",
"unit": "",
"min": 80,
"typ": null,
"max": null,
"conditions": "VCE=-1V,IC=-1mA",
"source_page": 1,
"source": "datasheet"
},
{
"name": "DC current gain",
"symbol": "hFE(3)",
"kind": "electrical",
"unit": "",
"min": 100,
"typ": null,
"max": 300,
"conditions": "VCE=-1V,IC=-10mA",
"source_page": 1,
"source": "datasheet"
},
{
"name": "DC current gain",
"symbol": "hFE(5)",
"kind": "electrical",
"unit": "",
"min": 30,
"typ": null,
"max": null,
"conditions": "VCE=-1V,IC=-100mA",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Collector-emitter saturation voltage",
"symbol": "VCE(sat)1",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": -0.25,
"conditions": "IC=-10mA,IB=-1mA",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Collector-emitter saturation voltage",
"symbol": "VCE(sat)2",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": -0.4,
"conditions": "IC=-50mA,IB=-5mA",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Base-emitter saturation voltage",
"symbol": "VBE(sat)1",
"kind": "electrical",
"unit": "V",
"min": -0.65,
"typ": null,
"max": -0.85,
"conditions": "IC=-10mA,IB=-1mA",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Base-emitter saturation voltage",
"symbol": "VBE(sat)2",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": -0.95,
"conditions": "IC=-50mA,IB=-5mA",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Transition frequency",
"symbol": "fT",
"kind": "electrical",
"unit": "MHz",
"min": 250,
"typ": null,
"max": null,
"conditions": "VCE=-20V,IC=-10mA,f=100MHz",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Collector capacitance",
"symbol": "Cc",
"kind": "electrical",
"unit": "pF",
"min": null,
"typ": null,
"max": 4.5,
"conditions": "VCB=-5V,IE=0,f=1MHz",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Emitter capacitance",
"symbol": "Ce",
"kind": "electrical",
"unit": "pF",
"min": null,
"typ": null,
"max": 10,
"conditions": "VEB=-0.5V,IC=0,f=1MHz",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Noise figure",
"symbol": "NF",
"kind": "electrical",
"unit": "dB",
"min": null,
"typ": null,
"max": 4,
"conditions": "VCE=-5V,Ic=-0.1mA,f=10Hz-15.7kHz, RS=1KΩ",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Delay time",
"symbol": "td",
"kind": "electrical",
"unit": "nS",
"min": null,
"typ": null,
"max": 35,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Rise time",
"symbol": "tr",
"kind": "electrical",
"unit": "nS",
"min": null,
"typ": null,
"max": 35,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Storage time",
"symbol": "tS",
"kind": "electrical",
"unit": "nS",
"min": null,
"typ": null,
"max": 225,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Fall time",
"symbol": "tf",
"kind": "electrical",
"unit": "nS",
"min": null,
"typ": null,
"max": 75,
"conditions": "IC=-10mA , IB1=-IB2= -1mA",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Collector cut-off current (ICEX)",
"symbol": "ICEX",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": null,
"max": -0.05,
"conditions": "VCB=-30V,VBE(off)=-3V",
"source_page": 1,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"2n3906u"
],
"discovery_pitch": "2N3906U (CBI) 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",
"2n3906u.kicad_sym",
"2n3906u.kicad_mod",
"2n3906u.glb",
"2n3906u.step",
"2n3906u.lbr",
"docs/hero.png",
"docs/2n3906u-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"2n3906u-hero.glb",
"2n3906u-hero.overlay.json",
"2n3906u-etched.glb"
],
"visibility": {
"public": true
}
}