component

TCZM4750ATR

Public Made by Adom

by adom

Tak Cheong Zener Diodes, LL-41. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

componentdiodestczm4750atrfactory-2.0.0extractor-text

Verified TCZM4750ATR

by Ray · last 30 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier lcsc, 2 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: TCZM4750ATR · LL-41 · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: all 2 pin names found in the 3-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: D_MELF
  • ✓files: 6 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-2bzcftei/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 1 records
  • •package_fit (skip): the datasheet dimensions give no height or body size to compare (datasheet p.3)
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 1 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ tczm4750atr.kicad_sym✓ tczm4750atr.kicad_mod✓ tczm4750atr.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
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← Commit history

tczm4750atr: factory component page (tier=lcsc)

Ray ·82b2a3eec9 ·8h ago ·parent 6e0fecd
1 file changed +175−29
page.json+175−29
page.json+175−29
@@ -1,8 +1,11 @@ {+  "schema_version": 1,+  "type": "component",   "slug": "tczm4750atr",+  "title": "TCZM4750ATR",+  "brief": "Tak Cheong Zener Diodes, LL-41. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.",   "version": "0.1.0",-  "type": "component",-  "description": "Tak Cheong Zener Diodes, LL-41. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.",+  "license": "CC-BY-SA-4.0",   "tags": [     "component",     "diodes",@@ -10,26 +13,6 @@     "factory-2.0.0",     "extractor-text"   ],-  "dependencies": {},-  "hero": {-    "type": "image",-    "path": "docs/hero.png"-  },-  "files": [-    "page.json",-    "README.md",-    "tczm4750atr.kicad_sym",-    "tczm4750atr.kicad_mod",-    "tczm4750atr.glb",-    "tczm4750atr.step",-    "tczm4750atr.lbr",-    "docs/hero.png",-    "docs/tczm4750atr-datasheet.pdf",-    "viewers/symbol.html",-    "viewers/footprint.html",-    "tczm4750atr-hero.glb",-    "tczm4750atr-hero.overlay.json"-  ],   "component": {     "mpn": "TCZM4750ATR",     "manufacturer": "Tak Cheong",@@ -123,8 +106,8 @@           2.2,           2.2         ],-        "zmin_mm": 0,-        "centre_offset_mm": 0,+        "zmin_mm": 0.0,+        "centre_offset_mm": 0.0,         "footprint_binding": "identity",         "sha256": "3b1fa81e2e3ea0ef2e0ddbeb3f62b354a14174610250e6069a5076959a63f835",         "checked": "2026-10-30",@@ -135,7 +118,7 @@       "package_code": "LL-41",       "source_page": 3,       "D": {-        "nom_mm": 5,+        "nom_mm": 5.0,         "range_mm": [           4.8,           5.2@@ -159,10 +142,173 @@       }     }   },-  "visibility": "public",-  "org": "adom",+  "metadata": {+    "specs": {+      "Manufacturer": "Tak Cheong",+      "Package": "LL-41",+      "Category": "Diodes",+      "Pins": "2"+    },+    "appearance": {+      "contacts": {+        "quote": "ƒ Matte Tin (Sn) Lead Finish ƒ Color band Indicates Negative Polarity",+        "page": 1,+        "doc": "ds.pdf",+        "plating": "tin"+      },+      "version": 1,+      "datasheet_sha256": "7bb75ebdfa147e19bee86a3b23a96027babdbe872412382eb31ca9dce1ce6b6f"+    },+    "characteristics": {+      "version": 1,+      "source": "datasheet",+      "datasheet_sha256": "7bb75ebdfa147e19bee86a3b23a96027babdbe872412382eb31ca9dce1ce6b6f",+      "rows": [+        {+          "name": "Reverse leakage current",+          "symbol": "IR",+          "kind": "electrical",+          "unit": "μA",+          "min": null,+          "typ": null,+          "max": 5,+          "conditions": "@ VR = 20.6 V",+          "source_page": 1,+          "source": "datasheet"+        },+        {+          "name": "Maximum zener knee current",+          "symbol": "IZK",+          "kind": "electrical",+          "unit": "mA",+          "min": null,+          "typ": null,+          "max": 0.25,+          "conditions": "",+          "source_page": 1,+          "source": "datasheet"+        },+        {+          "name": "Forward voltage",+          "symbol": "VF",+          "kind": "electrical",+          "unit": "V",+          "min": null,+          "typ": null,+          "max": 1.2,+          "conditions": "IF = 200 mA",+          "source_page": 2,+          "source": "datasheet"+        },+        {+          "name": "Storage temperature range",+          "symbol": "Tstg",+          "kind": "absolute_maximum",+          "unit": "°C",+          "min": -65,+          "typ": null,+          "max": 200,+          "conditions": "",+          "source_page": 1,+          "source": "datasheet"+        },+        {+          "name": "Maximum junction operating temperature",+          "symbol": "TJ",+          "kind": "absolute_maximum",+          "unit": "°C",+          "min": null,+          "typ": null,+          "max": 175,+          "conditions": "",+          "source_page": 1,+          "source": "datasheet"+        },+        {+          "name": "Total device dissipation",+          "symbol": "PD",+          "kind": "absolute_maximum",+          "unit": "W",+          "min": null,+          "typ": null,+          "max": 1,+          "conditions": "",+          "source_page": 1,+          "source": "datasheet"+        },+        {+          "name": "Thermal resistance junction to ambient",+          "symbol": "RθJA",+          "kind": "thermal",+          "unit": "°C/W",+          "min": null,+          "typ": 170,+          "max": null,+          "conditions": "junction to ambient, as printed in absolute maximum ratings table",+          "source_page": 1,+          "source": "datasheet"+        },+        {+          "name": "Zener voltage tolerance (suffix A, standard)",+          "symbol": "VZ",+          "kind": "tolerance",+          "unit": "%",+          "min": -5,+          "typ": null,+          "max": 5,+          "conditions": "Type suffix A = ±5% standard tolerance on nominal VZ; suffix C would be ±2%",+          "source_page": 2,+          "source": "datasheet"+        },+        {+          "name": "Nominal zener voltage",+          "symbol": "VZ",+          "kind": "electrical",+          "unit": "V",+          "min": null,+          "typ": 27,+          "max": null,+          "conditions": "@ IZT = 9.5 mA",+          "source_page": 2,+          "source": "datasheet"+        }+      ]+    }+  },+  "variants": [],+  "sections": [+    "hero",+    "viewers",+    "readme",+    "breadcrumbs",+    "info"+  ],+  "discovery_triggers": [+    "tczm4750atr"+  ],+  "discovery_pitch": "TCZM4750ATR (Tak Cheong) component page: datasheet pinout, KiCad symbol, footprint and 3D.",   "author": {     "name": "Ray",     "email": "[email protected]"-  }-}\ No newline at end of file+  },+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "tczm4750atr.kicad_sym",+    "tczm4750atr.kicad_mod",+    "tczm4750atr.glb",+    "tczm4750atr.step",+    "tczm4750atr.lbr",+    "docs/hero.png",+    "docs/tczm4750atr-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html",+    "tczm4750atr-hero.glb",+    "tczm4750atr-hero.overlay.json"+  ]+}