component
MMBT3904TT1G
Public Made by Adomby adom
onsemi Bipolar (BJT), SOT-416. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+39@@ -0,0 +1,39 @@+# MMBT3904TT1G++**onsemi** · Bipolar (BJT) · SOT-416++MMBT3904TT1G from onsemi, in a SOT-416. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | BASE | input | Control input terminal; rated for maximum 6.0 Vdc emitter-base voltage. |+| 2 | EMITTER | passive | Emitter terminal; source of charge carriers in this NPN silicon transistor. |+| 3 | COLLECTOR | output | Output terminal; rated for maximum 40 Vdc collector-emitter voltage and 200 mA continuous current. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | SOT-416 |+| Category | Transistors/Thyristors |+| Pins | 3 |++## CAD (KiCad official)++- Symbol: `MMBT3904TT1G`+- Footprint: `Package_TO_SOT_SMD:SOT-416`+- 3D model: SOT-416, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.8 mm nominal SOT-523 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)+- 3D model files: `mmbt3904tt1g-etched.step` / `mmbt3904tt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mmbt3904tt1g.step` / `mmbt3904tt1g.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588902343786582017) (8 pp, sha256 `615a6c2a9c3e0312`, retrieved 2026-10-01, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/mmbt3904tt1g-datasheet.pdf)
page.jsonadded+126@@ -0,0 +1,126 @@+{+ "slug": "mmbt3904tt1g",+ "version": "0.1.0",+ "type": "component",+ "description": "onsemi Bipolar (BJT), SOT-416. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "transistors-thyristors",+ "mmbt3904tt1g",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "mmbt3904tt1g.kicad_sym",+ "mmbt3904tt1g.kicad_mod",+ "mmbt3904tt1g.glb",+ "mmbt3904tt1g.step",+ "mmbt3904tt1g.lbr",+ "docs/hero.png",+ "docs/mmbt3904tt1g-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "MMBT3904TT1G",+ "manufacturer": "onsemi",+ "package": "SOT-416",+ "pin_count": 3,+ "category": "Transistors/Thyristors",+ "subcategory": "Bipolar (BJT)",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588902343786582017",+ "parts": {+ "symbol": "mmbt3904tt1g.kicad_sym",+ "footprint": "mmbt3904tt1g.kicad_mod",+ "model_3d": "mmbt3904tt1g-etched.glb",+ "model_3d_plain": "mmbt3904tt1g.glb",+ "model_3d_step": "mmbt3904tt1g-etched.step",+ "model_3d_step_plain": "mmbt3904tt1g.step",+ "lbr": "mmbt3904tt1g.lbr"+ },+ "distributor_links": {+ "lcsc": "C242260",+ "digikey": "MMBT3904TT1GOSTR-ND",+ "mouser": "863-MMBT3904TT1G"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T17:38:38Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "MMBT3904TT1GOSTR-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "863-MMBT3904TT1G",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "BASE",+ "type": "input",+ "description": "Control input terminal; rated for maximum 6.0 Vdc emitter-base voltage."+ },+ {+ "number": "2",+ "name": "EMITTER",+ "type": "passive",+ "description": "Emitter terminal; source of charge carriers in this NPN silicon transistor."+ },+ {+ "number": "3",+ "name": "COLLECTOR",+ "type": "output",+ "description": "Output terminal; rated for maximum 40 Vdc collector-emitter voltage and 200 mA continuous current."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 8,+ "cost_usd": 0.1327,+ "at": "2026-10-01T17:38:19"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588902343786582017",+ "pages": 8,+ "sha256": "615a6c2a9c3e0312",+ "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",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}