component
BRMMBT5551Q
Public Made by Adomby adom
Foshan Blue Rocket Elec Bipolar Transistors - BJT, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485
{
"schema_version": 1,
"type": "component",
"slug": "brmmbt5551q",
"title": "BRMMBT5551Q",
"brief": "Foshan Blue Rocket Elec Bipolar Transistors - BJT, 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",
"triode-mos tube-transistor",
"brmmbt5551q",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "BRMMBT5551Q",
"manufacturer": "Foshan Blue Rocket Elec",
"package": "SOT-23",
"pin_count": 3,
"category": "Triode/MOS Tube/Transistor",
"subcategory": "Bipolar Transistors - BJT",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/92a4801ed50bdac4899ca51fa0665292.pdf",
"parts": {
"symbol": "brmmbt5551q.kicad_sym",
"footprint": "brmmbt5551q.kicad_mod",
"model_3d": "brmmbt5551q-hero.glb",
"model_3d_plain": "brmmbt5551q-etched.glb",
"model_3d_step": "brmmbt5551q-etched.step",
"model_3d_step_plain": "brmmbt5551q.step",
"lbr": "brmmbt5551q.lbr"
},
"distributor_links": {
"lcsc": "C22356951"
},
"distributor_check": {
"checked_at": "2026-11-04T21:38:36Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "Base",
"type": "passive",
"description": "Base terminal of the NPN transistor, with absolute maximum base current IB of 300 mA."
},
{
"number": "2",
"name": "Emitter",
"type": "passive",
"description": "Emitter terminal of the NPN transistor, with absolute maximum emitter-to-base voltage VEBO of 6.0 V."
},
{
"number": "3",
"name": "Collector",
"type": "passive",
"description": "Collector terminal of the NPN transistor, with absolute maximum limits of VCBO 180 V, VCEO 160 V, collector current IC 600 mA and collector power dissipation PC 300 mW."
}
],
"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 pin assignments come from the text label 'PIN1: Base, PIN 2: Emitter, PIN 3: Collector' on page ; The datasheet lists only the SOT-23 package for this MPN (reel packaging: 3,000 units per reel), so ; The datasheet gives no per-pin limits. The descriptions quote the absolute maximum ratings from page"
],
"pages_sent": 6,
"cost_usd": 0.0176,
"at": "2026-11-04T21:38:28"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/92a4801ed50bdac4899ca51fa0665292.pdf",
"pages": 6,
"sha256": "38a6a67613c4e133",
"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": "brmmbt5551q.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": "2026-11-04",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "brmmbt5551q-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": "ca347b974e6651f2e8a232ce71998e81fc57d3be872ffb81b15590f375548e0e",
"checked": "2026-11-04",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Foshan Blue Rocket Elec",
"Package": "SOT-23",
"Category": "Triode/MOS Tube/Transistor",
"Pins": "3"
},
"appearance": {
"housing": {
"quote": "Base Current IB 300 mA Collector Power Dissipation PC 300 mW",
"page": 2,
"doc": "ds.pdf",
"material": "PC"
},
"version": 1,
"datasheet_sha256": "38a6a67613c4e13352c68393671d75437108cea52affb5e14222f91728108f80"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "38a6a67613c4e13352c68393671d75437108cea52affb5e14222f91728108f80",
"rows": [
{
"name": "Collector to Base Voltage",
"symbol": "VCBO",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 180,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector to Emitter Voltage",
"symbol": "VCEO",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 160,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Emitter to Base Voltage",
"symbol": "VEBO",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector Current",
"symbol": "IC",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 600,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Base Current",
"symbol": "IB",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 300,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector Power Dissipation",
"symbol": "PC",
"kind": "absolute_maximum",
"unit": "mW",
"min": null,
"typ": null,
"max": 300,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Junction Temperature",
"symbol": "Tj",
"kind": "absolute_maximum",
"unit": "℃",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Storage Temperature Range",
"symbol": "Tstg",
"kind": "absolute_maximum",
"unit": "℃",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector Cut-Off Current",
"symbol": "ICBO",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": null,
"max": 0.1,
"conditions": "VCB=180V IE=0",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Emitter Cut-off Current",
"symbol": "IEBO",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": null,
"max": 0.1,
"conditions": "VEB=6.0V IC=0",
"source_page": 2,
"source": "datasheet"
},
{
"name": "DC Current Gain hFE(1)",
"symbol": "hFE(1)",
"kind": "electrical",
"unit": "",
"min": 50,
"typ": 200,
"max": 400,
"conditions": "VCE=5.0V IC=10mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "DC Current Gain hFE(2)",
"symbol": "hFE(2)",
"kind": "electrical",
"unit": "",
"min": 20,
"typ": null,
"max": 160,
"conditions": "VCE=5.0V IC=50mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "DC Current Gain hFE(3)",
"symbol": "hFE(3)",
"kind": "electrical",
"unit": "",
"min": 40,
"typ": null,
"max": 190,
"conditions": "VCE=5.0V IC=1.0mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector-Emitter Saturation Voltage VCE(sat)(1)",
"symbol": "VCE(sat)(1)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.06,
"max": 0.15,
"conditions": "IC=10mA IB=1.0mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector-Emitter Saturation Voltage VCE(sat)(2)",
"symbol": "VCE(sat)(2)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.09,
"max": 0.3,
"conditions": "IC=50mA IB=5.0mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Base-Emitter Saturation Voltage VBE(sat)(1)",
"symbol": "VBE(sat)(1)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.7,
"max": 1,
"conditions": "IC=10mA IB=1.0mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Base-Emitter Saturation Voltage VBE(sat)(2)",
"symbol": "VBE(sat)(2)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.8,
"max": 1,
"conditions": "IC=50mA IB=5.0mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Base-Emitter Voltage",
"symbol": "VBE",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.68,
"max": 0.75,
"conditions": "VCE=5.0V IC=10mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Transition Frequency",
"symbol": "fT",
"kind": "electrical",
"unit": "MHz",
"min": 50,
"typ": null,
"max": 110,
"conditions": "VCE=10V IC=10mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Collector Output Capacitance",
"symbol": "Cob",
"kind": "electrical",
"unit": "pF",
"min": null,
"typ": 2.2,
"max": 5,
"conditions": "VCB=10V IE=0 f=1.0MHz",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Turn-on Time",
"symbol": "ton",
"kind": "electrical",
"unit": "μs",
"min": null,
"typ": 0.3,
"max": null,
"conditions": "IC=100mA IB1=-IB2=10mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Turn-off Time",
"symbol": "toff",
"kind": "electrical",
"unit": "μs",
"min": null,
"typ": 0.4,
"max": null,
"conditions": "IC=100mA IB1=-IB2=10mA",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Storage Time",
"symbol": "tstg",
"kind": "electrical",
"unit": "μs",
"min": null,
"typ": 0.2,
"max": null,
"conditions": "IC=100mA IB1=-IB2=10mA",
"source_page": 2,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"brmmbt5551q"
],
"discovery_pitch": "BRMMBT5551Q (Foshan Blue Rocket Elec) 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",
"brmmbt5551q.kicad_sym",
"brmmbt5551q.kicad_mod",
"brmmbt5551q.glb",
"brmmbt5551q.step",
"brmmbt5551q.lbr",
"docs/hero.png",
"docs/brmmbt5551q-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"brmmbt5551q-hero.glb",
"brmmbt5551q-hero.overlay.json",
"brmmbt5551q-etched.glb"
],
"visibility": {
"public": true
}
}