component
MMBTA14G-AE3-R
Public Made by Adomby adom
UTC(Unisonic Tech) Darlington Transistors, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375
{
"schema_version": 1,
"type": "component",
"slug": "mmbta14g-ae3-r",
"title": "MMBTA14G-AE3-R",
"brief": "UTC(Unisonic Tech) Darlington Transistors, SOT-23. 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",
"mmbta14g-ae3-r",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "MMBTA14G-AE3-R",
"manufacturer": "UTC(Unisonic Tech)",
"package": "SOT-23",
"pin_count": 3,
"category": "Transistors",
"subcategory": "Darlington Transistors",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/c6feda58e382441eb98d3d67f33cce73.pdf",
"parts": {
"symbol": "mmbta14g-ae3-r.kicad_sym",
"footprint": "mmbta14g-ae3-r.kicad_mod",
"model_3d": "mmbta14g-ae3-r-hero.glb",
"model_3d_plain": "mmbta14g-ae3-r-etched.glb",
"model_3d_step": "mmbta14g-ae3-r-etched.step",
"model_3d_step_plain": "mmbta14g-ae3-r.step",
"lbr": "mmbta14g-ae3-r.lbr"
},
"distributor_links": {
"lcsc": "C171471"
},
"distributor_check": {
"checked_at": "2026-10-22T08:43:39Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "E",
"type": "passive",
"description": "Emitter of the NPN Darlington transistor (SOT-23 pin assignment E-B-C for MMBTA14G-AE3-R); VEBO max 10V."
},
{
"number": "2",
"name": "B",
"type": "input",
"description": "Base of the NPN Darlington transistor; emitter-base voltage VEBO max 10V and IEBO max 100nA at VEB=10V."
},
{
"number": "3",
"name": "C",
"type": "passive",
"description": "Collector of the NPN Darlington transistor; VCES and VCBO max 30V, collector current IC max 500mA."
}
],
"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": [],
"pages_sent": 3,
"cost_usd": 0.0237,
"at": "2026-10-22T08:41:44"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/c6feda58e382441eb98d3d67f33cce73.pdf",
"pages": 3,
"sha256": "77eb45eb18074faa",
"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": "mmbta14g-ae3-r.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
2.5,
3,
1.2
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
"checked": "2026-10-22",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "mmbta14g-ae3-r-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
2.5,
3,
1.2
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "d6efd89f7a4e7e6a76554e20da7f347322e5d52b8570b3a9af13668437bc2f9f",
"checked": "2026-10-22",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "UTC(Unisonic Tech)",
"Package": "SOT-23",
"Category": "Transistors",
"Pins": "3"
},
"appearance": {
"housing": {
"quote": "Emitter-Base Voltage VEBO 10 V Collector Dissipation (TC=25C) PC 350 mW",
"page": 2,
"doc": "ds.pdf",
"material": "PC"
},
"version": 1,
"datasheet_sha256": "77eb45eb18074faa13b5d52fc2bf61570d64a5732939430c32b0e6346c8dee30"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "77eb45eb18074faa13b5d52fc2bf61570d64a5732939430c32b0e6346c8dee30",
"rows": [
{
"name": "Collector-Emitter Breakdown Voltage",
"symbol": "BVCES",
"kind": "electrical",
"unit": "V",
"min": 30,
"typ": null,
"max": null,
"conditions": "IC=100µA, IB=0",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector Cutoff Current",
"symbol": "ICBO",
"kind": "electrical",
"unit": "nA",
"min": null,
"typ": null,
"max": 100,
"conditions": "VCB=30V, IE=0",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Emitter Cutoff Current",
"symbol": "IEBO",
"kind": "electrical",
"unit": "nA",
"min": null,
"typ": null,
"max": 100,
"conditions": "VEB=10V, IC=0",
"source_page": 2,
"source": "datasheet"
},
{
"name": "DC Current Gain",
"symbol": "hFE",
"kind": "electrical",
"unit": "",
"min": 20000,
"typ": null,
"max": null,
"conditions": "VCE=5V, IC=100 mA (Note)",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector-Emitter Saturation Voltage",
"symbol": "VCE(SAT)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 1.5,
"conditions": "IC=100mA, IB=0.1mA (Note)",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Base-Emitter On Voltage",
"symbol": "VBE(ON)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 2,
"conditions": "VCE=5V, IC=100mA (Note)",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Current Gain Bandwidth Product",
"symbol": "fT",
"kind": "electrical",
"unit": "MHz",
"min": 125,
"typ": null,
"max": null,
"conditions": "VCE=5V, IC=10mA, f=100MHz",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector-Base Voltage",
"symbol": "VCBO",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 30,
"conditions": "TA=25°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector-Emitter Voltage",
"symbol": "VCES",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 30,
"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": 10,
"conditions": "TA=25°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector Dissipation",
"symbol": "PC",
"kind": "absolute_maximum",
"unit": "mW",
"min": null,
"typ": null,
"max": 350,
"conditions": "TC=25C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector Current",
"symbol": "IC",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 500,
"conditions": "TA=25°C",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Junction Temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "C",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Storage Temperature",
"symbol": "TSTG",
"kind": "absolute_maximum",
"unit": "C",
"min": -40,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"mmbta14g-ae3-r"
],
"discovery_pitch": "MMBTA14G-AE3-R (UTC(Unisonic Tech)) 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",
"mmbta14g-ae3-r.kicad_sym",
"mmbta14g-ae3-r.kicad_mod",
"mmbta14g-ae3-r.glb",
"mmbta14g-ae3-r.step",
"mmbta14g-ae3-r.lbr",
"docs/hero.png",
"docs/mmbta14g-ae3-r-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"mmbta14g-ae3-r-hero.glb",
"mmbta14g-ae3-r-hero.overlay.json",
"mmbta14g-ae3-r-etched.glb"
],
"visibility": {
"public": true
}
}