component
TL431ASF
Public Made by Adomby adom
HTC Korea TAEJIN Tech Voltage Reference, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+39@@ -0,0 +1,39 @@+# TL431ASF++**HTC Korea TAEJIN Tech** · Voltage Reference · SOT-23++TL431ASF from HTC Korea TAEJIN Tech, 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 | REF | input | Reference voltage input; sets the regulated output voltage via external resistor divider; reference input current IREF typ. 1.8 µA, max 4.0 µA (IK = 10 mA, R1 = 10 kΩ, R2 = ∞). |+| 2 | A | power_in | Anode terminal; connected to circuit ground; cathode current range (continuous) −100 mA to 150 mA flows from cathode to anode. |+| 3 | K | passive | Cathode terminal (input supply voltage); regulated cathode-to-anode voltage VKA from VREF (≈ 2.495 V) to 40 V; minimum cathode current for regulation IK(MIN) = 0.5 mA; dynamic impedance ZKA typ. 0.27 Ω (IK = 1 mA-100 mA, f ≤ 1 kHz). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | HTC Korea TAEJIN Tech |+| Package | SOT-23 |+| Category | Power Management (PMIC) |+| Pins | 3 |++## CAD (KiCad official)++- Symbol: `TL431ASF`+- Footprint: `Package_TO_SOT_SMD:SOT-23`+- 3D model: SOT-23 (KiCad packages3D, STEP)+- 3D model files: `tl431asf-etched.step` / `tl431asf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tl431asf.step` / `tl431asf.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [HTC Korea TAEJIN Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586191211447398400) (12 pp, sha256 `66b4ce853f1e463b`, retrieved 2026-09-21, 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/tl431asf-datasheet.pdf)
page.jsonadded+111@@ -0,0 +1,111 @@+{+ "slug": "tl431asf",+ "version": "0.1.0",+ "type": "component",+ "description": "HTC Korea TAEJIN Tech Voltage Reference, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "tl431asf",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "tl431asf.kicad_sym",+ "tl431asf.kicad_mod",+ "tl431asf.glb",+ "tl431asf.step",+ "tl431asf.lbr",+ "docs/hero.png",+ "docs/tl431asf-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "TL431ASF",+ "manufacturer": "HTC Korea TAEJIN Tech",+ "package": "SOT-23",+ "pin_count": 3,+ "category": "Power Management (PMIC)",+ "subcategory": "Voltage Reference",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586191211447398400",+ "parts": {+ "symbol": "tl431asf.kicad_sym",+ "footprint": "tl431asf.kicad_mod",+ "model_3d": "tl431asf-etched.glb",+ "model_3d_plain": "tl431asf.glb",+ "model_3d_step": "tl431asf-etched.step",+ "model_3d_step_plain": "tl431asf.step",+ "lbr": "tl431asf.lbr"+ },+ "distributor_links": {+ "lcsc": "C262799"+ },+ "pins": [+ {+ "number": "1",+ "name": "REF",+ "type": "input",+ "description": "Reference voltage input; sets the regulated output voltage via external resistor divider; reference input current IREF typ. 1.8 µA, max 4.0 µA (IK = 10 mA, R1 = 10 kΩ, R2 = ∞)."+ },+ {+ "number": "2",+ "name": "A",+ "type": "power_in",+ "description": "Anode terminal; connected to circuit ground; cathode current range (continuous) −100 mA to 150 mA flows from cathode to anode."+ },+ {+ "number": "3",+ "name": "K",+ "type": "passive",+ "description": "Cathode terminal (input supply voltage); regulated cathode-to-anode voltage VKA from VREF (≈ 2.495 V) to 40 V; minimum cathode current for regulation IK(MIN) = 0.5 mA; dynamic impedance ZKA typ. 0.27 Ω (IK = 1 mA-100 mA, f ≤ 1 kHz)."+ }+ ],+ "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": 12,+ "cost_usd": 0.0994,+ "at": "2026-09-21T21:13:58"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586191211447398400",+ "pages": 12,+ "sha256": "66b4ce853f1e463b",+ "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]"+ }+}