component
MMBFJ111
Public Made by Adomby adom
onsemi JFETs, SOT-23. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+39@@ -0,0 +1,39 @@+# MMBFJ111++**onsemi** · JFETs · SOT-23++MMBFJ111 from onsemi, in a SOT-23. 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 | Gate | input | Gate control electrode for n-channel JFET; maximum gate-source breakdown voltage -35 V at VDS = 0; maximum forward gate current 50 mA; gate-source cut-off voltage -3.0 to -10.0 V for MMBFJ111. |+| 2 | Source | passive | Source terminal; interchangeable with drain per datasheet; carries maximum drain current 20 mA at VDS = 15 V with VGS = 0; operating junction temperature range -55 to 150°C. |+| 3 | Drain | passive | Drain terminal; interchangeable with source per datasheet; maximum drain-gate voltage 35 V; drain-source on-resistance 30 Ω at VGS = 0 for MMBFJ111; maximum device dissipation 350 mW. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | SOT-23 |+| Category | Transistors/Thyristors |+| Pins | 3 |++## CAD (KiCad official)++- Symbol: `MMBFJ111`+- Footprint: `Package_TO_SOT_SMD:SOT-23`+- 3D model: SOT-23 (KiCad packages3D, STEP)+- 3D model files: `mmbfj111-etched.step` / `mmbfj111-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mmbfj111.step` / `mmbfj111.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/8588884221414805504) (10 pp, sha256 `31bb42c5278ef581`, retrieved 2026-09-29, tier: lcsc)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/mmbfj111-datasheet.pdf)
page.jsonadded+113@@ -0,0 +1,113 @@+{+ "slug": "mmbfj111",+ "version": "0.1.0",+ "type": "component",+ "description": "onsemi JFETs, SOT-23. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "transistors-thyristors",+ "mmbfj111",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "mmbfj111.kicad_sym",+ "mmbfj111.kicad_mod",+ "mmbfj111.glb",+ "mmbfj111.step",+ "mmbfj111.lbr",+ "docs/hero.png",+ "docs/mmbfj111-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "MMBFJ111",+ "manufacturer": "onsemi",+ "package": "SOT-23",+ "pin_count": 3,+ "category": "Transistors/Thyristors",+ "subcategory": "JFETs",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884221414805504",+ "parts": {+ "symbol": "mmbfj111.kicad_sym",+ "footprint": "mmbfj111.kicad_mod",+ "model_3d": "mmbfj111-etched.glb",+ "model_3d_plain": "mmbfj111.glb",+ "model_3d_step": "mmbfj111-etched.step",+ "model_3d_step_plain": "mmbfj111.step",+ "lbr": "mmbfj111.lbr"+ },+ "distributor_links": {+ "lcsc": "C274688",+ "digikey": "MMBFJ111TR-ND",+ "mouser": "512-MMBFJ111"+ },+ "distributor_check": {+ "checked_at": "2026-09-29T17:07:18Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "MMBFJ111TR-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "512-MMBFJ111",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "Gate",+ "type": "input",+ "description": "Gate control electrode for n-channel JFET; maximum gate-source breakdown voltage -35 V at VDS = 0; maximum forward gate current 50 mA; gate-source cut-off voltage -3.0 to -10.0 V for MMBFJ111."+ },+ {+ "number": "2",+ "name": "Source",+ "type": "passive",+ "description": "Source terminal; interchangeable with drain per datasheet; carries maximum drain current 20 mA at VDS = 15 V with VGS = 0; operating junction temperature range -55 to 150°C."+ },+ {+ "number": "3",+ "name": "Drain",+ "type": "passive",+ "description": "Drain terminal; interchangeable with source per datasheet; maximum drain-gate voltage 35 V; drain-source on-resistance 30 Ω at VGS = 0 for MMBFJ111; maximum device dissipation 350 mW."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884221414805504",+ "pages": 10,+ "sha256": "31bb42c5278ef581",+ "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]"+ }+}