TIP120 NPN Darlington Transistor

@@ -2,9 +2,10 @@   "schema_version": 1,   "type": "component",   "slug": "tip120",-  "title": "TIP120",-  "brief": "NPN Darlington transistor, 60V, 5A, TO-220",+  "title": "TIP120 NPN Darlington Transistor",+  "brief": "NPN Darlington power transistor, 60 V / 5 A, with high current gain in a TO-220 package.",   "version": "0.1.0",+  "license": "CC-BY-SA-4.0",   "tags": [     "transistor",     "darlington",@@ -13,36 +14,96 @@     "to-220",     "st"   ],-  "license": "MIT",   "component": {     "mpn": "TIP120",     "manufacturer": "STMicroelectronics",     "package": "TO-220",-    "pin_count": null,-    "category": "library",-    "subcategory": "",-    "body_size": null,-    "parts": {},-    "distributor_links": {}+    "pin_count": 3,+    "category": "Discrete Semiconductor",+    "subcategory": "Bipolar Transistor (BJT)",+    "datasheet": "https://www.st.com/resource/en/datasheet/tip120.pdf",+    "parts": {+      "symbol": "tip120.kicad_sym",+      "footprint": "tip120.kicad_mod",+      "model_3d": "tip120.glb",+      "model_3d_step": "tip120.step"+    },+    "distributor_links": {},+    "pins": [+      {+        "number": "1",+        "name": "B",+        "type": "input",+        "description": "Base of the NPN Darlington pair. Drives the input transistor through an internal 7 k\u03a9 base-emitter shunt (R1); a second 70 \u03a9 resistor (R2) shunts the output stage. Max continuous base current IB = 0.12 A; VBE(on) \u2264 2.5 V at IC = 3 A, VCE = 3 V."+      },+      {+        "number": "2",+        "name": "C",+        "type": "passive",+        "description": "Collector of the NPN Darlington output transistor. Electrically common with the TAB (mounting/heat-sink flange). Rated VCEO = 60 V, IC(cont) = 5 A, IC(peak) = 8 A; VCE(sat) \u2264 2 V at IC = 3 A. Includes an internal collector-emitter clamp diode (anode = emitter, cathode = collector) for inductive-load flyback protection."+      },+      {+        "number": "3",+        "name": "E",+        "type": "passive",+        "description": "Emitter of the NPN Darlington output transistor; the low-side current-return terminal. Typically tied to ground/common in a low-side switching topology. Carries the full collector current in the on state."+      }+    ],+    "provenance": {+      "extractor": "ds2sf",+      "datasheet": {+        "url": "https://www.st.com/resource/en/datasheet/tip120.pdf",+        "pages": 13,+        "sha256": "e726b0e3ab76c110",+        "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"+    }   },-  "readme": "# TIP120\n\nNPN Darlington transistor, 60V, 5A, TO-220\n\nThe TIP120 is an NPN Darlington transistor with very high current gain (hFE > 1000). Rated at 60V and 5A. Used for driving high-current loads like relays, solenoids, and motors from microcontroller pins.",+  "metadata": {+    "specs": {+      "Type": "NPN Darlington power transistor",+      "Collector-emitter voltage (VCEO)": "60 V",+      "Collector current (IC)": "5 A continuous (8 A peak)",+      "DC current gain (hFE)": "1000 min, 2500 typ at 3 A",+      "Power dissipation": "65 W",+      "VCE(sat)": "2.0 V at 3 A",+      "Operating temperature": "-65 C to 150 C"+    }+  },+  "sections": [+    "hero",+    "viewers",+    "readme",+    "breadcrumbs",+    "info"+  ],+  "discovery_triggers": [+    "Darlington transistor",+    "NPN power switch",+    "drive a motor or solenoid",+    "high-current switch"+  ],+  "discovery_pitch": "An NPN Darlington that switches up to 5 A from a logic-level base drive, for motors, relays, and solenoids.",   "author": {-    "name": "Kyle Bergstedt",-    "email": "[email protected]"+    "name": "Ray",+    "email": "[email protected]"   },-  "visibility": "public",+  "dependencies": {},   "hero": {     "type": "image",     "path": "docs/hero.png"   },-  "sample_prompts": [],-  "discovery_triggers": [],-  "discovery_pitch": null,-  "metadata": {},-  "created_at": "2026-05-28T05:34:19.707Z",-  "updated_at": "2026-05-28T05:34:19.707Z",-  "description": "NPN Darlington power transistor, 60 V / 5 A, with high current gain in a TO-220 package.",-  "dependencies": {},   "files": [     "page.json",     "README.md",