component
MMBTRC118SS
Public Made by Adomby adom
ST Semtech Digital Transistors, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391
{
"schema_version": 1,
"type": "component",
"slug": "mmbtrc118ss",
"title": "MMBTRC118SS",
"brief": "ST Semtech Digital 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-thyristors",
"mmbtrc118ss",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "MMBTRC118SS",
"manufacturer": "ST Semtech",
"package": "SOT-23",
"pin_count": 3,
"category": "Transistors/Thyristors",
"subcategory": "Digital Transistors",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590908908506591232",
"parts": {
"symbol": "mmbtrc118ss.kicad_sym",
"footprint": "mmbtrc118ss.kicad_mod",
"model_3d": "mmbtrc118ss-hero.glb",
"model_3d_plain": "mmbtrc118ss-etched.glb",
"model_3d_step": "mmbtrc118ss-etched.step",
"model_3d_step_plain": "mmbtrc118ss.step",
"lbr": "mmbtrc118ss.lbr"
},
"distributor_links": {
"lcsc": "C7464244"
},
"distributor_check": {
"checked_at": "2026-10-17T21:26:33Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "Base",
"type": "input",
"description": "Base (Input) terminal of the NPN with built-in bias resistors; for the MMBTRC118SS the absolute maximum input voltage is 12 V / -5 V."
},
{
"number": "2",
"name": "Emitter",
"type": "passive",
"description": "Emitter (Common) terminal; the datasheet gives no separate electrical limit for this pin beyond the device absolute maximum ratings (junction temperature 150 °C, storage -55 to +150 °C)."
},
{
"number": "3",
"name": "Collector",
"type": "output",
"description": "Collector (Output) terminal; the absolute maximum output voltage is 50 V and output current is 100 mA."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The datasheet labels the emitter only as 'Emitter (Common)'; no ERC class is stated, so 'passive' is; The datasheet labels the collector as '(Output)', so 'output' follows its labelling. A KiCad 'passiv; The datasheet covers the MMBTRC116SS to MMBTRC122SS family in one SOT-23 pinout (1.Base 2.Emitter 3."
],
"pages_sent": 7,
"cost_usd": 0.0293,
"at": "2026-10-17T21:24:25"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590908908506591232",
"pages": 7,
"sha256": "f28e2347f7518bbb",
"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": "mmbtrc118ss.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": "2026-10-17",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "mmbtrc118ss-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": "7b5194f3341f5612f90f857d367cc74793d42236ce9d1de52a107725f01ecec9",
"checked": "2026-10-17",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "ST Semtech",
"Package": "SOT-23",
"Category": "Transistors/Thyristors",
"Pins": "3"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "f28e2347f7518bbbd9fb4208d573ab9fe3fdd496bcba1b95e35d497352dc2212",
"rows": [
{
"name": "Output Cutoff Current",
"symbol": "IO(OFF)",
"kind": "electrical",
"unit": "nA",
"min": null,
"typ": null,
"max": 500,
"conditions": "at VO = 50 V",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Input Current",
"symbol": "II",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 3.8,
"conditions": "at VI = 5 V",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Output Voltage",
"symbol": "VO(ON)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.3,
"conditions": "at IO = 10 mA, II = 0.5 mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Input Voltage (ON)",
"symbol": "VI(ON)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 3,
"conditions": "at VO = 0.3 V, IO = 20 mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Input Voltage (OFF)",
"symbol": "VI(OFF)",
"kind": "electrical",
"unit": "V",
"min": 0.3,
"typ": null,
"max": null,
"conditions": "at VCC = 5 V, IO = 100 µA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "DC Current Gain",
"symbol": "GI",
"kind": "electrical",
"unit": "",
"min": 33,
"typ": null,
"max": null,
"conditions": "at VO = 5 V, IO = 10 mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Transition Frequency",
"symbol": "fT",
"kind": "electrical",
"unit": "MHz",
"min": null,
"typ": 250,
"max": null,
"conditions": "at VO = 10 V, IO = 5 mA; characteristic of transistor only",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Output Voltage",
"symbol": "VO",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 50,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Input Voltage",
"symbol": "VI",
"kind": "absolute_maximum",
"unit": "V",
"min": -5,
"typ": null,
"max": 12,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Output Current",
"symbol": "IO",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 100,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Total Power Dissipation",
"symbol": "Ptot",
"kind": "absolute_maximum",
"unit": "mW",
"min": null,
"typ": null,
"max": 200,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Junction Temperature",
"symbol": "Tj",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Storage Temperature Range",
"symbol": "TStg",
"kind": "absolute_maximum",
"unit": "°C",
"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": 625,
"conditions": "Device mounted on FR-4 PC board, 2oz copper, minimum recommended pad layout",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Built-in input bias resistor R1",
"symbol": "R1",
"kind": "electrical",
"unit": "kΩ",
"min": null,
"typ": 2.2,
"max": null,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Built-in bias resistor R2",
"symbol": "R2",
"kind": "electrical",
"unit": "kΩ",
"min": null,
"typ": 10,
"max": null,
"conditions": "",
"source_page": 1,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"mmbtrc118ss"
],
"discovery_pitch": "MMBTRC118SS (ST Semtech) 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",
"mmbtrc118ss.kicad_sym",
"mmbtrc118ss.kicad_mod",
"mmbtrc118ss.glb",
"mmbtrc118ss.step",
"mmbtrc118ss.lbr",
"docs/hero.png",
"docs/mmbtrc118ss-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"mmbtrc118ss-hero.glb",
"mmbtrc118ss-hero.overlay.json",
"mmbtrc118ss-etched.glb"
],
"visibility": {
"public": true
}
}