component
BCX55-16-JSM
Public Made by Adomby adom
JSMSEMI Bipolar (BJT), SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476
{
"schema_version": 1,
"type": "component",
"slug": "bcx55-16-jsm",
"title": "BCX55-16-JSM",
"brief": "JSMSEMI 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",
"bcx55-16-jsm",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "BCX55-16-JSM",
"manufacturer": "JSMSEMI",
"package": "SOT-89",
"pin_count": 3,
"category": "Transistors/Thyristors",
"subcategory": "Bipolar (BJT)",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/6091a04c3d713afee620e38a66aa2d87.pdf",
"parts": {
"symbol": "bcx55-16-jsm.kicad_sym",
"footprint": "bcx55-16-jsm.kicad_mod",
"model_3d": "bcx55-16-jsm-hero.glb",
"model_3d_plain": "bcx55-16-jsm-etched.glb",
"model_3d_step": "bcx55-16-jsm-etched.step",
"model_3d_step_plain": "bcx55-16-jsm.step",
"lbr": "bcx55-16-jsm.lbr"
},
"distributor_links": {
"lcsc": "C28642383"
},
"distributor_check": {
"checked_at": "2026-11-05T03:40:21Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "BASE",
"type": "input",
"description": "Base of the NPN transistor; the datasheet rates DC base current at 100 mA and peak base current at 200 mA, with emitter-base voltage limited to 5 V."
},
{
"number": "2",
"name": "EMITTER",
"type": "passive",
"description": "Emitter of the NPN transistor; the datasheet gives emitter-base breakdown V(BR)EBO of 5 V minimum at IE=10 µA."
},
{
"number": "3",
"name": "COLLECTOR",
"type": "passive",
"description": "Collector of the NPN transistor, connected to the center tab; the datasheet rates BCX55 VCEO at 60 V and VCBO at 60 V, with DC collector current of 1 A and peak collector current of 1.5 A."
}
],
"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 numbers 1/2/3 are read from the schematic symbol and 3D package picture on page 1 (1=BASE, 2=EMI; The datasheet says BCX55-16 is marked BM and comes in SOT-89 only. The page 5 drawing shows 3 leads ",
"vision extraction: provenance cannot be text-verified; needs consensus"
],
"pages_sent": 5,
"cost_usd": 0.1525,
"at": "2026-11-05T03:40:14"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/6091a04c3d713afee620e38a66aa2d87.pdf",
"pages": 5,
"sha256": "9172f3cc368eb650",
"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": "bcx55-16-jsm.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": "2026-11-05",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "bcx55-16-jsm-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": "6ec1b630451faabfac58f07701cbe02c781d421f036c38041b93bbefeae8d86b",
"checked": "2026-11-05",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "SOT-89",
"source_page": 5,
"D": {
"nom_mm": 4.5,
"range_mm": [
4.3,
4.7
]
},
"E1": {
"nom_mm": 2.45,
"range_mm": [
2.25,
2.65
]
},
"E": {
"nom_mm": 4.15,
"range_mm": [
3.95,
4.35
]
},
"e": {
"nom_mm": 1.5,
"range_mm": [
null,
null
]
},
"A": {
"nom_mm": 1.5,
"range_mm": [
1.4,
1.6
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "bcx55-16-jsm.step",
"verdict": "PASS",
"reasons": [
"height and body within the datasheet's package drawing"
],
"by": "factory/package_fit.py"
}
}
},
"metadata": {
"specs": {
"Manufacturer": "JSMSEMI",
"Package": "SOT-89",
"Category": "Transistors/Thyristors",
"Pins": "3"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "9172f3cc368eb65069d3582ed5332786fd70959ccfa13e0a8f689ea532106463",
"rows": [
{
"name": "Collector-emitter voltage (BCX55 column)",
"symbol": "VCEO",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 60,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Collector-base voltage (BCX55 column)",
"symbol": "VCBO",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 60,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Emitter-base voltage",
"symbol": "VEBO",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 5,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "DC collector current",
"symbol": "IC",
"kind": "absolute_maximum",
"unit": "A",
"min": null,
"typ": null,
"max": 1,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Peak collector current",
"symbol": "ICM",
"kind": "absolute_maximum",
"unit": "A",
"min": null,
"typ": null,
"max": 1.5,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Base current",
"symbol": "IB",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 100,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Peak base current",
"symbol": "IBM",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 200,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Total power dissipation",
"symbol": "Ptot",
"kind": "absolute_maximum",
"unit": "mW",
"min": null,
"typ": null,
"max": 500,
"conditions": "TS=130℃",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Junction and storage temperature",
"symbol": "Tj,Tstg",
"kind": "absolute_maximum",
"unit": "℃",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Collector-base breakdown voltage (BCX55)",
"symbol": "V(BR)CBO",
"kind": "electrical",
"unit": "V",
"min": 60,
"typ": null,
"max": null,
"conditions": "IC=100μA IB=0",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector-emitter breakdown voltage (BCX55)",
"symbol": "V(BR)CEO",
"kind": "electrical",
"unit": "V",
"min": 60,
"typ": null,
"max": null,
"conditions": "IC=10mA IB=0",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Emitter-base breakdown voltage",
"symbol": "V(BR)EBO",
"kind": "electrical",
"unit": "V",
"min": 5,
"typ": null,
"max": null,
"conditions": "IE=10μA IC=0",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector cut-off current",
"symbol": "ICBO",
"kind": "electrical",
"unit": "nA",
"min": null,
"typ": null,
"max": 100,
"conditions": "VCB=30V IE=0",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector cut-off current at high temperature",
"symbol": "ICBO",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": null,
"max": 20,
"conditions": "VCB=30V IE=0, TA=150℃",
"source_page": 2,
"source": "datasheet"
},
{
"name": "DC current gain",
"symbol": "hFE",
"kind": "electrical",
"unit": "",
"min": 25,
"typ": null,
"max": null,
"conditions": "VCE=2V IC=5mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "DC current gain (-16 group)",
"symbol": "hFE",
"kind": "electrical",
"unit": "",
"min": 100,
"typ": null,
"max": 250,
"conditions": "VCE=2V IC=150mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "DC current gain (BCX54…56 row)",
"symbol": "hFE",
"kind": "electrical",
"unit": "",
"min": 40,
"typ": null,
"max": 250,
"conditions": "VCE=2V IC=150mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector-emitter saturation voltage",
"symbol": "VCE(sat)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.5,
"conditions": "IC=500mA IB=50mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Base-emitter voltage",
"symbol": "VBE",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 1,
"conditions": "IC=500mA, VCE=2V",
"source_page": 2,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"bcx55-16-jsm"
],
"discovery_pitch": "BCX55-16-JSM (JSMSEMI) 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",
"bcx55-16-jsm.kicad_sym",
"bcx55-16-jsm.kicad_mod",
"bcx55-16-jsm.glb",
"bcx55-16-jsm.step",
"bcx55-16-jsm.lbr",
"docs/hero.png",
"docs/bcx55-16-jsm-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"bcx55-16-jsm-hero.glb",
"bcx55-16-jsm-hero.overlay.json",
"bcx55-16-jsm-etched.glb"
],
"visibility": {
"public": true
}
}