component
B772Y-2AF
Public Made by Adomby adom
FOSAN Bipolar (BJT), SOT-89-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "b772y-2af",
"title": "B772Y-2AF",
"brief": "FOSAN Bipolar (BJT), SOT-89-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
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"transistors-thyristors",
"b772y-2af",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "B772Y-2AF",
"manufacturer": "FOSAN",
"package": "SOT-89-3L",
"pin_count": 3,
"category": "Transistors/Thyristors",
"subcategory": "Bipolar (BJT)",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/667d2245dd198cfea41a72da52f39957.pdf",
"parts": {
"symbol": "b772y-2af.kicad_sym",
"footprint": "b772y-2af.kicad_mod",
"model_3d": "b772y-2af-hero.glb",
"model_3d_plain": "b772y-2af-etched.glb",
"model_3d_step": "b772y-2af-etched.step",
"model_3d_step_plain": "b772y-2af.step",
"lbr": "b772y-2af.lbr"
},
"distributor_links": {
"lcsc": "C48587123"
},
"distributor_check": {
"checked_at": "2026-10-21T07:32:38Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "B",
"type": "input",
"description": "Base of the PNP transistor; VEBO max -6 V and BVEBO min -6 V (IE=-100µA)."
},
{
"number": "2",
"name": "C",
"type": "passive",
"description": "Collector of the PNP transistor (also connected to the exposed tab); VCBO -40 V, VCEO -30 V, IC max -3000 mA."
},
{
"number": "3",
"name": "E",
"type": "passive",
"description": "Emitter of the PNP transistor; power dissipation 500 mW at Ta=25℃, junction temperature -55 to +150℃."
}
],
"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 order B-C-E is read from the page 1 symbol drawing, left to right, and the page 4 drawing shows ; The datasheet text describes this part as R/O/Y/GR variants. B772Y-2AF is the Y grade, hFE 160-320, ",
"vision extraction: provenance cannot be text-verified; needs consensus"
],
"pages_sent": 4,
"cost_usd": 0.1788,
"at": "2026-10-21T07:29:16"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/667d2245dd198cfea41a72da52f39957.pdf",
"pages": 4,
"sha256": "5667d1bb23727ff4",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 3,
"described": 3,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
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"footprint": "viewers/footprint.html"
},
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"file": "b772y-2af.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": "2026-10-21",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "b772y-2af-etched.step",
"role": "eda",
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"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
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"sha256": "3e1b148d9a43eb0e41358dc5c58bc523b3dde892344dd392f929d4b962d2d644",
"checked": "2026-10-21",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "FOSAN",
"Package": "SOT-89-3L",
"Category": "Transistors/Thyristors",
"Pins": "3"
},
"characteristics": {
"version": 1,
"source": "datasheet",
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"rows": [
{
"name": "Collector-Base Breakdown Voltage",
"symbol": "BVCBO",
"kind": "electrical",
"unit": "V",
"min": -40,
"typ": null,
"max": null,
"conditions": "IC= -100µA, IE=0",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector-Emitter Breakdown Voltage",
"symbol": "BVCEO",
"kind": "electrical",
"unit": "V",
"min": -30,
"typ": null,
"max": null,
"conditions": "IC= -10mA, IB=0",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Emitter-Base Breakdown Voltage",
"symbol": "BVEBO",
"kind": "electrical",
"unit": "V",
"min": -6,
"typ": null,
"max": null,
"conditions": "IE= -100µA, IC=0",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector-Base Leakage Current",
"symbol": "ICBO",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": -1,
"conditions": "VCB= -40V, IE=0",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector-Emitter Leakage Current",
"symbol": "ICEO",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": -10,
"conditions": "VCE= -30V, IB=0",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Emitter-Base Leakage Current",
"symbol": "IEBO",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": -1,
"conditions": "VEB= -6V, IC=0",
"source_page": 2,
"source": "datasheet"
},
{
"name": "DC Current Gain",
"symbol": "HFE",
"kind": "electrical",
"unit": "",
"min": 60,
"typ": null,
"max": 400,
"conditions": "VCE= -2V, IC= -1000mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "DC Current Gain, Y grade (device marking)",
"symbol": "HFE",
"kind": "electrical",
"unit": "",
"min": 160,
"typ": null,
"max": 320,
"conditions": "Y grade per device marking table",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Collector-Emitter Saturation Voltage",
"symbol": "VCE(sat)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": -0.5,
"conditions": "IC= -2A, IB= -0.2A",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Base-Emitter Saturation Voltage",
"symbol": "VBE(sat)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": -1.5,
"conditions": "IC= -2A, IB= -0.2A",
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{
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"source": "datasheet"
},
{
"name": "Collector-Emitter Voltage",
"symbol": "VCEO",
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"unit": "V",
"min": -30,
"typ": null,
"max": null,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Emitter-Base Voltage",
"symbol": "VEBO",
"kind": "absolute_maximum",
"unit": "V",
"min": -6,
"typ": null,
"max": null,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Collector Current",
"symbol": "IC",
"kind": "absolute_maximum",
"unit": "mA",
"min": -3000,
"typ": null,
"max": null,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Power dissipation",
"symbol": "PC",
"kind": "absolute_maximum",
"unit": "mW",
"min": null,
"typ": null,
"max": 500,
"conditions": "Ta=25℃",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Junction and Storage Temperature",
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"kind": "absolute_maximum",
"unit": "℃",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Thermal Resistance Junction-Ambient",
"symbol": "RΘJA",
"kind": "thermal",
"unit": "℃/W",
"min": null,
"typ": null,
"max": 250,
"conditions": "",
"source_page": 1,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
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"info"
],
"discovery_triggers": [
"b772y-2af"
],
"discovery_pitch": "B772Y-2AF (FOSAN) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
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}