component
1N4749A-TR
Public Made by Adomby adom
Vishay Intertech Zener Diodes, DO-204AL(DO-41). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
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page.json+199−27@@ -1,8 +1,11 @@ {+ "schema_version": 1,+ "type": "component", "slug": "1n4749a-tr",+ "title": "1N4749A-TR",+ "brief": "Vishay Intertech Zener Diodes, DO-204AL(DO-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": "Vishay Intertech Zener Diodes, DO-204AL(DO-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",- "1n4749a-tr.kicad_sym",- "1n4749a-tr.kicad_mod",- "1n4749a-tr.glb",- "1n4749a-tr.step",- "1n4749a-tr.lbr",- "docs/hero.png",- "docs/1n4749a-tr-datasheet.pdf",- "viewers/symbol.html",- "viewers/footprint.html",- "1n4749a-tr-hero.glb",- "1n4749a-tr-hero.overlay.json"- ], "component": { "mpn": "1N4749A-TR", "manufacturer": "Vishay Intertech",@@ -124,7 +107,7 @@ 5.71 ], "zmin_mm": -2.5,- "centre_offset_mm": 0,+ "centre_offset_mm": 0.0, "footprint_binding": "identity", "sha256": "c3e23d4b276811b74eecb329bd4480209ad3dbc8cf6e6e3f2a5b542c5ca343c1", "checked": "2026-10-21",@@ -132,10 +115,199 @@ } ] },- "visibility": "public",- "org": "adom",+ "metadata": {+ "specs": {+ "Manufacturer": "Vishay Intertech",+ "Package": "DO-204AL(DO-41)",+ "Category": "Diodes",+ "Pins": "2"+ },+ "characteristics": {+ "version": 1,+ "source": "datasheet",+ "datasheet_sha256": "33369d6dd029950575c67d35bdc670118c9699955a372927720be2045a5973ce",+ "rows": [+ {+ "name": "Reverse leakage current at VR",+ "symbol": "IR",+ "kind": "electrical",+ "unit": "μA",+ "min": null,+ "typ": null,+ "max": 5,+ "conditions": "at VR = 18.2 V",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Dynamic resistance (Zener impedance)",+ "symbol": "ZZT",+ "kind": "electrical",+ "unit": "Ω",+ "min": null,+ "typ": null,+ "max": 25,+ "conditions": "f = 1 kHz, at IZT1 = 10.5 mA",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Dynamic resistance (knee impedance)",+ "symbol": "ZZK",+ "kind": "electrical",+ "unit": "Ω",+ "min": null,+ "typ": null,+ "max": 750,+ "conditions": "f = 1 kHz, at IZT2 = 0.25 mA",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Surge current",+ "symbol": "IR",+ "kind": "electrical",+ "unit": "mA",+ "min": null,+ "typ": null,+ "max": 190,+ "conditions": "tp = 10 ms",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Regulator current",+ "symbol": "IZM",+ "kind": "electrical",+ "unit": "mA",+ "min": null,+ "typ": null,+ "max": 38,+ "conditions": "Valid provided electrodes at a distance of 4 mm from case are kept at ambient temperature",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Forward voltage",+ "symbol": "VF",+ "kind": "electrical",+ "unit": "V",+ "min": null,+ "typ": null,+ "max": 1.2,+ "conditions": "IF = 200 mA",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Power dissipation",+ "symbol": "Ptot",+ "kind": "absolute_maximum",+ "unit": "mW",+ "min": null,+ "typ": null,+ "max": 1300,+ "conditions": "Leads at a distance of 4 mm from case kept at ambient temperature",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Thermal resistance junction to ambient air",+ "symbol": "RthJA",+ "kind": "thermal",+ "unit": "K/W",+ "min": null,+ "typ": null,+ "max": 110,+ "conditions": "Leads at a distance of 4 mm from case kept at ambient temperature",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Junction temperature",+ "symbol": "Tj",+ "kind": "absolute_maximum",+ "unit": "°C",+ "min": null,+ "typ": null,+ "max": 175,+ "conditions": "",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Storage temperature range",+ "symbol": "Tstg",+ "kind": "absolute_maximum",+ "unit": "°C",+ "min": -65,+ "typ": null,+ "max": 175,+ "conditions": "",+ "source_page": 1,+ "source": "datasheet"+ },+ {+ "name": "Zener voltage (nominal)",+ "symbol": "VZ",+ "kind": "electrical",+ "unit": "V",+ "min": null,+ "typ": 24,+ "max": null,+ "conditions": "at IZT1 = 10.5 mA",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Zener voltage tolerance",+ "symbol": "",+ "kind": "tolerance",+ "unit": "%",+ "min": -5,+ "typ": null,+ "max": 5,+ "conditions": "Standard Zener voltage tolerance",+ "source_page": 1,+ "source": "datasheet"+ }+ ]+ }+ },+ "variants": [],+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "1n4749a-tr"+ ],+ "discovery_pitch": "1N4749A-TR (Vishay Intertech) component page: datasheet pinout, KiCad symbol, footprint and 3D.", "author": { "name": "Ray", "email": "[email protected]"- }-}+ },+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "1n4749a-tr.kicad_sym",+ "1n4749a-tr.kicad_mod",+ "1n4749a-tr.glb",+ "1n4749a-tr.step",+ "1n4749a-tr.lbr",+ "docs/hero.png",+ "docs/1n4749a-tr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "1n4749a-tr-hero.glb",+ "1n4749a-tr-hero.overlay.json"+ ]+}