TZ1897B

{
  "schema_version": 1,
  "type": "component",
  "slug": "tz1897b",
  "title": "TZ1897B",
  "brief": "TST Crystals, SMD2016-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "crystals-oscillators-resonators",
    "tz1897b",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TZ1897B",
    "manufacturer": "TST",
    "package": "SMD2016-4P",
    "pin_count": 4,
    "category": "Crystals/Oscillators/Resonators",
    "subcategory": "Crystals",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/b15e82e17977eca064ccd5ca7ecf3650.pdf",
    "parts": {
      "symbol": "tz1897b.kicad_sym",
      "footprint": "tz1897b.kicad_mod",
      "model_3d": "tz1897b-hero.glb",
      "model_3d_plain": "tz1897b-etched.glb",
      "model_3d_step": "tz1897b-etched.step",
      "model_3d_step_plain": "tz1897b.step",
      "lbr": "tz1897b.lbr"
    },
    "distributor_links": {
      "lcsc": "C337647",
      "digikey": "4606-TZ1897BTR-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T07:36:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "4606-TZ1897BTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IN/OUT",
        "type": "passive",
        "description": "Crystal terminal connected to one side of the 27.12 MHz resonator (interchangeable with pin 3)."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin connected to the metal cover, per the note that #2 and #4 are connected with a metal cover."
      },
      {
        "number": "3",
        "name": "IN/OUT",
        "type": "passive",
        "description": "Crystal terminal connected to the other side of the 27.12 MHz resonator (interchangeable with pin 1)."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin connected to the metal cover, per the note that #2 and #4 are connected with a metal cover."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet shows two base drawings (Base1 and Base2) with the same pin table but different pad pl; The datasheet gives no electrical pin types. IN/OUT is classed as passive because this is a crystal.",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 8,
        "cost_usd": 0.1998,
        "at": "2026-10-21T07:32:13"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/b15e82e17977eca064ccd5ca7ecf3650.pdf",
        "pages": 8,
        "sha256": "85dc12c9cd6fc688",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 4,
        "described": 4,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tz1897b.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2,
          1.6,
          0.93
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "eea7262e5781943394ac3ed4f9d076ea60a9856fdf5911f6ab502d1fcc1b0836",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tz1897b-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2,
          1.6,
          0.93
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "a9fb6191ec1107a02057cf60857f63e23b8404d9e6419d0f06c37ca2215f9415",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "TST",
      "Package": "SMD2016-4P",
      "Category": "Crystals/Oscillators/Resonators",
      "Pins": "4"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "85dc12c9cd6fc688e6e2c2ec07f001c44461f77387cfe8c008e2d4551f1330d1",
      "rows": [
        {
          "name": "Equivalent Series Resistance (ESR)",
          "symbol": "ESR",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Shunt Capacitance",
          "symbol": "Co",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Nominal Drive Level",
          "symbol": "",
          "kind": "electrical",
          "unit": "uW",
          "min": null,
          "typ": 10,
          "max": 100,
          "conditions": "typical and max as printed",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Frequency Stability over Operating Temperature Range",
          "symbol": "",
          "kind": "tolerance",
          "unit": "ppm",
          "min": -30,
          "typ": null,
          "max": 30,
          "conditions": "referred to the value at 25°C, over operating temperature range",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Frequency Make Tolerance (FL)",
          "symbol": "FL",
          "kind": "tolerance",
          "unit": "ppm",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "@ 25°C +/- 3°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Insulation Resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "MΩ",
          "min": 500,
          "typ": null,
          "max": null,
          "conditions": "DC 100V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -50,
          "typ": null,
          "max": 105,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Nominal Frequency",
          "symbol": "",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 27.12,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load Capacitance",
          "symbol": "CL",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tz1897b"
  ],
  "discovery_pitch": "TZ1897B (TST) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
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    "tz1897b.kicad_mod",
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    "tz1897b.step",
    "tz1897b.lbr",
    "docs/hero.png",
    "docs/tz1897b-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tz1897b-hero.glb",
    "tz1897b-hero.overlay.json",
    "tz1897b-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}