component
FCX493QTA
Public Made by Adomby adom
Diodes Incorporated Bipolar (BJT), SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533
{
"schema_version": 1,
"type": "component",
"slug": "fcx493qta",
"title": "FCX493QTA",
"brief": "Diodes Incorporated 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",
"fcx493qta",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "FCX493QTA",
"manufacturer": "Diodes Incorporated",
"package": "SOT-89",
"pin_count": 3,
"category": "Transistors/Thyristors",
"subcategory": "Bipolar (BJT)",
"datasheet": "https://www.diodes.com/assets/Datasheets/FCX493QTA.pdf",
"parts": {
"symbol": "fcx493qta.kicad_sym",
"footprint": "fcx493qta.kicad_mod",
"model_3d": "fcx493qta-hero.glb",
"model_3d_plain": "fcx493qta-etched.glb",
"model_3d_step": "fcx493qta-etched.step",
"model_3d_step_plain": "fcx493qta.step",
"lbr": "fcx493qta.lbr"
},
"distributor_links": {
"lcsc": "C5381666"
},
"distributor_check": {
"checked_at": "2026-10-22T22:09:28Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "B",
"type": "input",
"description": "Base of the NPN transistor; continuous base current is rated at 200 mA maximum and VEBO is 7 V."
},
{
"number": "2",
"name": "C",
"type": "passive",
"description": "Collector, also connected to the exposed collector pad/tab; VCEO is 100 V, VCBO is 120 V, and continuous IC is 1 A (2 A peak)."
},
{
"number": "3",
"name": "E",
"type": "passive",
"description": "Emitter of the NPN transistor; emitter-base breakdown voltage is 7 V minimum."
}
],
"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 extracted text of the pin-out figure shows only the labels C, E, B and C, with no pin numbers. T"
],
"pages_sent": 7,
"cost_usd": 0.1084,
"at": "2026-10-22T22:09:18"
},
"datasheet": {
"url": "https://www.diodes.com/assets/Datasheets/FCX493QTA.pdf",
"pages": 7,
"sha256": "8ce3cdb1f38d976e",
"source_tier": "mfr"
},
"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": "fcx493qta.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": "2026-10-22",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "fcx493qta-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": "60358db73ec421ce751328269492326614937ed908f29e6fa5ee5d1b1bcf84d0",
"checked": "2026-10-22",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Diodes Incorporated",
"Package": "SOT-89",
"Category": "Transistors/Thyristors",
"Pins": "3"
},
"appearance": {
"contacts": {
"quote": "• Terminals: Matte Tin Finish, Solderable per MIL-STD-202, Method 208",
"page": 1,
"doc": "ds.pdf",
"plating": "tin"
},
"version": 1,
"datasheet_sha256": "8ce3cdb1f38d976e9dd2e128dc512fab2d0c78564db48bb624067bf70ffcdb5b"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "8ce3cdb1f38d976e9dd2e128dc512fab2d0c78564db48bb624067bf70ffcdb5b",
"rows": [
{
"name": "Collector-Base Voltage",
"symbol": "VCBO",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 120,
"conditions": "TA = +25°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector-Emitter Voltage",
"symbol": "VCEO",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 100,
"conditions": "TA = +25°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Emitter-Base Voltage",
"symbol": "VEBO",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 7,
"conditions": "TA = +25°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Continuous Collector Current",
"symbol": "IC",
"kind": "absolute_maximum",
"unit": "A",
"min": null,
"typ": null,
"max": 1,
"conditions": "TA = +25°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Peak Pulse Current",
"symbol": "ICM",
"kind": "absolute_maximum",
"unit": "A",
"min": null,
"typ": null,
"max": 2,
"conditions": "TA = +25°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Continuous Base Current",
"symbol": "IB",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 200,
"conditions": "TA = +25°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector Power Dissipation",
"symbol": "PD",
"kind": "absolute_maximum",
"unit": "W",
"min": null,
"typ": null,
"max": 1,
"conditions": "Note 5, TA = +25°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Operating and Storage Temperature Range",
"symbol": "TJ,TSTG",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "ESD Human Body Model",
"symbol": "ESD HBM",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 4000,
"conditions": "JEDEC Class 3A",
"source_page": 2,
"source": "datasheet"
},
{
"name": "ESD Machine Model",
"symbol": "ESD MM",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 400,
"conditions": "JEDEC Class C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Thermal Resistance, Junction to Ambient Air",
"symbol": "RθJA",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 125,
"max": null,
"conditions": "Note 5",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Thermal Resistance, Junction to Leads",
"symbol": "RθJL",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 10.01,
"max": null,
"conditions": "Note 6",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector-Base Breakdown Voltage",
"symbol": "BVCBO",
"kind": "electrical",
"unit": "V",
"min": 120,
"typ": null,
"max": null,
"conditions": "IC = 100µA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Collector-Emitter Breakdown Voltage",
"symbol": "BVCEO",
"kind": "electrical",
"unit": "V",
"min": 100,
"typ": null,
"max": null,
"conditions": "IC = 1mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Emitter-Base Breakdown Voltage",
"symbol": "BVEBO",
"kind": "electrical",
"unit": "V",
"min": 7,
"typ": null,
"max": null,
"conditions": "IE = 100µA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Collector Cutoff Current",
"symbol": "ICBO",
"kind": "electrical",
"unit": "nA",
"min": null,
"typ": null,
"max": 100,
"conditions": "VCB = 100V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Emitter Cutoff Current",
"symbol": "IEBO",
"kind": "electrical",
"unit": "nA",
"min": null,
"typ": null,
"max": 100,
"conditions": "VEB = 5V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "DC current transfer Static ratio",
"symbol": "hFE",
"kind": "electrical",
"unit": "",
"min": 100,
"typ": null,
"max": 300,
"conditions": "IC = 1mA, VCE = 10V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "DC current transfer Static ratio",
"symbol": "hFE",
"kind": "electrical",
"unit": "",
"min": 100,
"typ": null,
"max": null,
"conditions": "IC = 250mA, VCE = 10V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "DC current transfer Static ratio",
"symbol": "hFE",
"kind": "electrical",
"unit": "",
"min": 60,
"typ": null,
"max": null,
"conditions": "IC = 500mA, VCE = 10V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "DC current transfer Static ratio",
"symbol": "hFE",
"kind": "electrical",
"unit": "",
"min": 20,
"typ": null,
"max": null,
"conditions": "IC = 1A, VCE = 10V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Collector-Emitter Saturation Voltage",
"symbol": "VCE(sat)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.3,
"conditions": "IC = 500mA, IB = 50mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Collector-Emitter Saturation Voltage",
"symbol": "VCE(sat)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.6,
"conditions": "IC = 1A, IB = 100mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Base-Emitter Saturation Voltage",
"symbol": "VBE(sat)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 1.15,
"conditions": "IC = 1A, IB = 100mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Base-Emitter Turn-on Voltage",
"symbol": "VBE(on)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 1,
"conditions": "IC = 1A, VCE = 10V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Transitional Frequency",
"symbol": "ft",
"kind": "electrical",
"unit": "MHz",
"min": 150,
"typ": null,
"max": null,
"conditions": "IC = 50mA, VCE = 10V, f = 100MHz",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Output capacitance",
"symbol": "Cobo",
"kind": "electrical",
"unit": "pF",
"min": null,
"typ": null,
"max": 10,
"conditions": "VCB = 10V, f = 1MHz",
"source_page": 4,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"fcx493qta"
],
"discovery_pitch": "FCX493QTA (Diodes Incorporated) 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",
"fcx493qta.kicad_sym",
"fcx493qta.kicad_mod",
"fcx493qta.glb",
"fcx493qta.step",
"fcx493qta.lbr",
"docs/hero.png",
"docs/fcx493qta-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"fcx493qta-hero.glb",
"fcx493qta-hero.overlay.json",
"fcx493qta-etched.glb"
],
"visibility": {
"public": true
}
}