component
ZM4740A
Public Made by Adomby adom
MSKSEMI 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.
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page.json+236−28@@ -1,8 +1,11 @@ {+ "schema_version": 1,+ "type": "component", "slug": "zm4740a",+ "title": "ZM4740A",+ "brief": "MSKSEMI 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": "MSKSEMI 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",- "zm4740a.kicad_sym",- "zm4740a.kicad_mod",- "zm4740a.glb",- "zm4740a.step",- "zm4740a.lbr",- "docs/hero.png",- "docs/zm4740a-datasheet.pdf",- "viewers/symbol.html",- "viewers/footprint.html",- "zm4740a-hero.glb",- "zm4740a-hero.overlay.json"- ], "component": { "mpn": "ZM4740A", "manufacturer": "MSKSEMI",@@ -127,8 +110,8 @@ 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": "2026-10-21",@@ -136,10 +119,235 @@ } ] },- "visibility": "public",- "org": "adom",+ "metadata": {+ "specs": {+ "Manufacturer": "MSKSEMI",+ "Package": "LL-41",+ "Category": "Diodes",+ "Pins": "2"+ },+ "characteristics": {+ "version": 1,+ "source": "datasheet",+ "datasheet_sha256": "2fe699a8fd952775503fab5704fb1e5d139c95f36b4228755301a50bee511e8d",+ "rows": [+ {+ "name": "Zener voltage tolerance (suffix A = ±5%)",+ "symbol": "",+ "kind": "tolerance",+ "unit": "%",+ "min": -5,+ "typ": null,+ "max": 5,+ "conditions": "Suffix A on ZM4740A; standard tolerance is ±10%, suffix B is ±2%",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Power Dissipation",+ "symbol": "Ptot",+ "kind": "absolute_maximum",+ "unit": "W",+ "min": null,+ "typ": null,+ "max": 1,+ "conditions": "Valid provided that electrodes are kept at ambient temperature",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Junction Temperature",+ "symbol": "Tj",+ "kind": "absolute_maximum",+ "unit": "℃",+ "min": null,+ "typ": null,+ "max": 175,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Storage Temperature Range",+ "symbol": "Tstg",+ "kind": "absolute_maximum",+ "unit": "℃",+ "min": -65,+ "typ": null,+ "max": 175,+ "conditions": "",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Dynamic Resistance",+ "symbol": "ZZT",+ "kind": "electrical",+ "unit": "Ω",+ "min": null,+ "typ": null,+ "max": 7,+ "conditions": "at IZT = 25 mA; 60 Hz AC, RMS 10% of IZT superimposed on IZT",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Dynamic Resistance",+ "symbol": "ZZK",+ "kind": "electrical",+ "unit": "Ω",+ "min": null,+ "typ": null,+ "max": 700,+ "conditions": "at IZK = 0.25 mA",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Reverse Current",+ "symbol": "IR",+ "kind": "electrical",+ "unit": "µA",+ "min": null,+ "typ": null,+ "max": 10,+ "conditions": "at VR = 7.6 V",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Maximum Surge Current",+ "symbol": "IZSM",+ "kind": "absolute_maximum",+ "unit": "mA",+ "min": null,+ "typ": null,+ "max": 454,+ "conditions": "Peak non-repetitive 1/2 square wave or sine pulse of 1/120 s superimposed on IZT",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Maximum Regulator Current",+ "symbol": "IZM",+ "kind": "electrical",+ "unit": "mA",+ "min": null,+ "typ": null,+ "max": 91,+ "conditions": "Valid provided that electrodes are kept at ambient temperature",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Zener Voltage (nominal)",+ "symbol": "VZnom",+ "kind": "electrical",+ "unit": "V",+ "min": null,+ "typ": 10,+ "max": null,+ "conditions": "at IZT = 25 mA",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Zener Test Current",+ "symbol": "IZT",+ "kind": "electrical",+ "unit": "mA",+ "min": null,+ "typ": 25,+ "max": null,+ "conditions": "Test current for VZnom and ZZT",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Reverse test voltage",+ "symbol": "VR",+ "kind": "electrical",+ "unit": "V",+ "min": null,+ "typ": 7.6,+ "max": null,+ "conditions": "Test voltage for IR",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Zzk test current",+ "symbol": "IZK",+ "kind": "electrical",+ "unit": "mA",+ "min": null,+ "typ": 0.25,+ "max": null,+ "conditions": "Test current for ZZK",+ "source_page": 3,+ "source": "datasheet"+ },+ {+ "name": "Thermal Resistance Junction to Ambient Air",+ "symbol": "RthA",+ "kind": "thermal",+ "unit": "K/mW",+ "min": null,+ "typ": 0.3,+ "max": null,+ "conditions": "Valid provided that electrodes are kept at ambient temperature",+ "source_page": 2,+ "source": "datasheet"+ },+ {+ "name": "Forward Voltage",+ "symbol": "VF",+ "kind": "electrical",+ "unit": "V",+ "min": null,+ "typ": 1,+ "max": null,+ "conditions": "at IF = 100 mA",+ "source_page": 2,+ "source": "datasheet"+ }+ ]+ }+ },+ "variants": [],+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "zm4740a"+ ],+ "discovery_pitch": "ZM4740A (MSKSEMI) 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",+ "zm4740a.kicad_sym",+ "zm4740a.kicad_mod",+ "zm4740a.glb",+ "zm4740a.step",+ "zm4740a.lbr",+ "docs/hero.png",+ "docs/zm4740a-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "zm4740a-hero.glb",+ "zm4740a-hero.overlay.json"+ ]+}