component
BC847A RFG
Public Made by Adomby adom
Taiwan Semiconductor(Taiwan Semicon) Bipolar Transistors - BJT, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214
{
"slug": "bc847a-rfg",
"version": "0.1.0",
"type": "component",
"description": "Taiwan Semiconductor(Taiwan Semicon) Bipolar Transistors - BJT, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"transistors",
"bc847a rfg",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"bc847a-rfg.kicad_sym",
"bc847a-rfg.kicad_mod",
"bc847a-rfg.glb",
"bc847a-rfg.step",
"bc847a-rfg.lbr",
"docs/hero.png",
"docs/bc847a-rfg-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"bc847a-rfg-hero.glb",
"bc847a-rfg-hero.overlay.json",
"bc847a-rfg-etched.glb"
],
"component": {
"mpn": "BC847A RFG",
"manufacturer": "Taiwan Semiconductor(Taiwan Semicon)",
"package": "SOT-23",
"pin_count": 3,
"category": "Transistors",
"subcategory": "Bipolar Transistors - BJT",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/57290698994adb0bcbabf14f882cd21f.pdf",
"parts": {
"symbol": "bc847a-rfg.kicad_sym",
"footprint": "bc847a-rfg.kicad_mod",
"model_3d": "bc847a-rfg-hero.glb",
"model_3d_plain": "bc847a-rfg-etched.glb",
"model_3d_step": "bc847a-rfg-etched.step",
"model_3d_step_plain": "bc847a-rfg.step",
"lbr": "bc847a-rfg.lbr"
},
"distributor_links": {
"lcsc": "C486131",
"digikey": "1801-BC847ARFGTR-ND",
"mouser": "821-BC847ARFG"
},
"distributor_check": {
"checked_at": "2026-10-31T12:34:01Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "1801-BC847ARFGTR-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "821-BC847ARFG",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "Base",
"type": "input",
"description": "Base terminal of the NPN transistor; for BC847 the emitter-base breakdown voltage is 6 V min and the emitter-base voltage rating is 6 V."
},
{
"number": "2",
"name": "Emitter",
"type": "passive",
"description": "Emitter terminal of the NPN transistor, the reference for the VCEO of 45 V and VEBO of 6 V ratings of the BC847."
},
{
"number": "3",
"name": "Collector",
"type": "passive",
"description": "Collector terminal of the NPN transistor; BC847 collector current is rated 0.1 A, VCEO 45 V, VCBO 50 V, and power dissipation 200 mW."
}
],
"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 assignments come from the package diagram on page 1 (1 Base, 2 Emitter, 3 Collector). Pin types ",
"vision extraction: provenance cannot be text-verified; needs consensus"
],
"pages_sent": 4,
"cost_usd": 0.1856,
"at": "2026-10-31T12:33:45"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/57290698994adb0bcbabf14f882cd21f.pdf",
"pages": 4,
"sha256": "5d0929d1f7b9c16c",
"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": "bc847a-rfg.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
2.5,
3.0,
1.2
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "bc847a-rfg-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
2.5,
3.0,
1.2
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "82b4cd1a3cf7336e1c581471d82fdfb2c8816b7c9005db13a088b00c744084e9",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "SOT-23",
"source_page": 3,
"D": {
"nom_mm": 2.9,
"range_mm": [
2.7,
3.1
]
},
"E1": {
"nom_mm": 1.3,
"range_mm": [
1.1,
1.5
]
},
"E": {
"nom_mm": 2.37,
"range_mm": [
2.1,
2.64
]
},
"e": {
"nom_mm": 1.91,
"range_mm": [
1.78,
2.04
]
},
"A": {
"nom_mm": 1.095,
"range_mm": [
0.89,
1.3
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "bc847a-rfg.step",
"verdict": "PASS",
"reasons": [
"height and body within the datasheet's package drawing"
],
"by": "factory/package_fit.py"
}
}
}
}