component
TL431IZT
Public Made by Adomby adom
STMicroelectronics Voltage Reference, TO-92. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+39@@ -0,0 +1,39 @@+# TL431IZT++**STMicroelectronics** · Voltage Reference · TO-92++TL431IZT from STMicroelectronics, in a TO-92. 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 | Cathode | passive | Cathode (K) terminal of the shunt regulator; operates over a cathode-to-anode voltage of Vref to 36 V and a cathode current range of 1 to 100 mA (absolute max -100 to +150 mA), with typical dynamic impedance 0.22 Ω. |+| 2 | Anode | passive | Anode (A) terminal of the shunt regulator, forming the return path for the cathode current; cathode-to-anode voltage rating is Vref to 36 V (absolute max 37 V). |+| 3 | Ref | input | Reference input to the internal comparator; reference input current range is -0.05 to +10 mA (absolute max) with typical Iref of 1.8 µA, used with external resistor divider to program the output voltage from 2.5 V to 36 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | TO-92 |+| Category | Power Management (PMIC) |+| Pins | 3 |++## CAD (KiCad official)++- Symbol: `TL431IZT`+- Footprint: `Package_TO_SOT_THT:TO-92_Inline`+- 3D model: TO-92 (KiCad packages3D, STEP)+- 3D model files: `tl431izt-etched.step` / `tl431izt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tl431izt.step` / `tl431izt.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/tl431izt.pdf) (22 pp, sha256 `d174b1869a9d426d`, retrieved 2026-09-23, tier: manufacturer)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5` (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/tl431izt-datasheet.pdf)
page.jsonadded+111@@ -0,0 +1,111 @@+{+ "slug": "tl431izt",+ "version": "0.1.0",+ "type": "component",+ "description": "STMicroelectronics Voltage Reference, TO-92. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "tl431izt",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "tl431izt.kicad_sym",+ "tl431izt.kicad_mod",+ "tl431izt.glb",+ "tl431izt.step",+ "tl431izt.lbr",+ "docs/hero.png",+ "docs/tl431izt-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "TL431IZT",+ "manufacturer": "STMicroelectronics",+ "package": "TO-92",+ "pin_count": 3,+ "category": "Power Management (PMIC)",+ "subcategory": "Voltage Reference",+ "datasheet": "https://www.st.com/resource/en/datasheet/tl431izt.pdf",+ "parts": {+ "symbol": "tl431izt.kicad_sym",+ "footprint": "tl431izt.kicad_mod",+ "model_3d": "tl431izt-etched.glb",+ "model_3d_plain": "tl431izt.glb",+ "model_3d_step": "tl431izt-etched.step",+ "model_3d_step_plain": "tl431izt.step",+ "lbr": "tl431izt.lbr"+ },+ "distributor_links": {+ "lcsc": "C2156686"+ },+ "pins": [+ {+ "number": "1",+ "name": "Cathode",+ "type": "passive",+ "description": "Cathode (K) terminal of the shunt regulator; operates over a cathode-to-anode voltage of Vref to 36 V and a cathode current range of 1 to 100 mA (absolute max -100 to +150 mA), with typical dynamic impedance 0.22 Ω."+ },+ {+ "number": "2",+ "name": "Anode",+ "type": "passive",+ "description": "Anode (A) terminal of the shunt regulator, forming the return path for the cathode current; cathode-to-anode voltage rating is Vref to 36 V (absolute max 37 V)."+ },+ {+ "number": "3",+ "name": "Ref",+ "type": "input",+ "description": "Reference input to the internal comparator; reference input current range is -0.05 to +10 mA (absolute max) with typical Iref of 1.8 µA, used with external resistor divider to program the output voltage from 2.5 V to 36 V."+ }+ ],+ "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-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 22,+ "cost_usd": 0.3314,+ "at": "2026-09-23T16:53:12"+ },+ "datasheet": {+ "url": "https://www.st.com/resource/en/datasheet/tl431izt.pdf",+ "pages": 22,+ "sha256": "d174b1869a9d426d",+ "source_tier": "mfr"+ },+ "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]"+ }+}