component
BC846B
Public Made by Adomby adom
Guangdong Hottech Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+38@@ -0,0 +1,38 @@+# BC846B++**Guangdong Hottech** · Bipolar (BJT) · SOT-23++BC846B from Guangdong Hottech, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | B | input | Base - NPN control terminal; hFE 200-450 (BC846B rank) at VCE=5 V, IC=2 mA; VBE(sat) max 1.1 V at IC=100 mA, IB=5 mA; VEBO max 6 V. |+| 2 | E | passive | Emitter - NPN emitter terminal; IEBO(cut-off) max 0.1 µA at VEB=5 V, IC=0. |+| 3 | C | passive | Collector - NPN collector terminal; IC max 100 mA, VCEO max 65 V, VCBO max 80 V, VCE(sat) max 0.5 V at IC=100 mA IB=5 mA, PC max 200 mW. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Guangdong Hottech |+| Package | SOT-23 |+| Category | Transistors/Thyristors |+| Pins | 3 |++## CAD (KiCad official)++- Symbol: `BC846B`+- Footprint: `Package_TO_SOT_SMD:SOT-23`+- 3D model: SOT-23 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Guangdong Hottech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586190177488818176) (4 pp, sha256 `4d3e72f410b72a1a`, retrieved 2026-09-17, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-sonnet-4-6` (text+vision), consensus `claude-opus-4-7` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/bc846b-datasheet.pdf)
page.jsonadded+110@@ -0,0 +1,110 @@+{+ "slug": "bc846b",+ "version": "0.1.0",+ "type": "component",+ "description": "Guangdong Hottech Bipolar (BJT), SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "transistors-thyristors",+ "bc846b",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "bc846b.kicad_sym",+ "bc846b.kicad_mod",+ "bc846b.glb",+ "bc846b.step",+ "bc846b.lbr",+ "docs/hero.png",+ "docs/bc846b-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "BC846B",+ "manufacturer": "Guangdong Hottech",+ "package": "SOT-23",+ "pin_count": 3,+ "category": "Transistors/Thyristors",+ "subcategory": "Bipolar (BJT)",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586190177488818176",+ "parts": {+ "symbol": "bc846b.kicad_sym",+ "footprint": "bc846b.kicad_mod",+ "model_3d": "bc846b.glb",+ "model_3d_step": "bc846b.step",+ "lbr": "bc846b.lbr"+ },+ "distributor_links": {+ "lcsc": "C181138"+ },+ "pins": [+ {+ "number": "1",+ "name": "B",+ "type": "input",+ "description": "Base - NPN control terminal; hFE 200-450 (BC846B rank) at VCE=5 V, IC=2 mA; VBE(sat) max 1.1 V at IC=100 mA, IB=5 mA; VEBO max 6 V."+ },+ {+ "number": "2",+ "name": "E",+ "type": "passive",+ "description": "Emitter - NPN emitter terminal; IEBO(cut-off) max 0.1 µA at VEB=5 V, IC=0."+ },+ {+ "number": "3",+ "name": "C",+ "type": "passive",+ "description": "Collector - NPN collector terminal; IC max 100 mA, VCEO max 65 V, VCBO max 80 V, VCE(sat) max 0.5 V at IC=100 mA IB=5 mA, PC max 200 mW."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-sonnet-4-6",+ "primary_mode": "text+vision",+ "consensus_model": "claude-opus-4-7",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "vision extraction: provenance cannot be text-verified; needs consensus"+ ],+ "pages_sent": 4,+ "cost_usd": 0.1533,+ "at": "2026-09-17T19:22:27"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586190177488818176",+ "pages": 4,+ "sha256": "4d3e72f410b72a1a",+ "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"+ }+ },+ "visibility": "public",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}