{
  "v": "2.0",
  "page_type": "product",
  "title": "OP521 TT Electronics/Optek Technology | Sensors, Transducers | DigiKey",
  "breadcrumbs": [
    {
      "label": "Home",
      "href": "/python/html5/index.html"
    },
    {
      "label": "Brands",
      "href": "/python/html5/menu_brand_index/menu_brand_index_brands_87101ba214.html"
    },
    {
      "label": "TT Electronics/Optek Technology",
      "href": "/python/html5/menu_brand_products/1000/12000/menu_brand_products_TTElectronicsOptekTechnology_1_61aa0e279f.html"
    },
    {
      "label": "OP521",
      "href": null
    }
  ],
  "content": {
    "product": {
      "mpn": "OP521",
      "manufacturer": "TT Electronics/Optek Technology",
      "brand": "TT Electronics/Optek Technology",
      "brand_url": "/python/html5/menu_brand_products/1000/12000/menu_brand_products_TTElectronicsOptekTechnology_1_61aa0e279f.html",
      "title": "OP521 TT Electronics/Optek Technology | Sensors, Transducers | DigiKey",
      "description": "",
      "attributes": [
        {
          "name": "Brand name",
          "values": [
            {
              "value": "TT Electronics/Optek Technology",
              "url": "/python/html5/menu_attr_pair/1000/10000000/10745000/menu_attr_pair_Brandname_TTElectronicsOptekTechnology_1_d3d9f3ecfe.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/10000000/10745000/menu_attr_pair_Brandname_TTElectronicsOptekTechnology_1_d3d9f3ecfe.html"
        },
        {
          "name": "Manufacturer name",
          "values": [
            {
              "value": "TT Electronics/Optek Technology",
              "url": "/python/html5/menu_attr_pair/1000/10000000/10745000/menu_attr_pair_Manufacturername_TTElectronicsOptekTechnology_1_25b9ed3afc.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/10000000/10745000/menu_attr_pair_Manufacturername_TTElectronicsOptekTechnology_1_25b9ed3afc.html"
        },
        {
          "name": "Manufacturer",
          "values": [
            {
              "value": "TT Electronics/Optek Technology",
              "url": "/python/html5/menu_attr_pair/1000/10000000/10745000/menu_attr_pair_Manufacturer_TTElectronicsOptekTechnology_1_39ca49ec10.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/10000000/10745000/menu_attr_pair_Manufacturer_TTElectronicsOptekTechnology_1_39ca49ec10.html"
        },
        {
          "name": "DimensionUnit",
          "values": [
            {
              "value": "m",
              "url": "/python/html5/menu_attr_pair/1000/157000/menu_attr_pair_DimensionUnit_m_1_47c3cdc7aa.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/157000/menu_attr_pair_DimensionUnit_m_1_47c3cdc7aa.html"
        },
        {
          "name": "Extra Product Name",
          "values": [
            {
              "value": "OP521 TT Electronics/Optek Technology | Sensors, Transducers | DigiKey",
              "url": "/python/html5/menu_attr_pair/1000/24000000/24367000/menu_attr_pair_ExtraProductName_OP521TTElectronicsOptekTechnologySensorsTr_1_8378178587.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/24000000/24367000/menu_attr_pair_ExtraProductName_OP521TTElectronicsOptekTechnologySensorsTr_1_8378178587.html"
        },
        {
          "name": "atoms",
          "values": [
            {
              "value": "1",
              "url": "/python/html5/menu_attr_pair/menu_attr_pair_atoms_1_1_fa25edd0e2.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/menu_attr_pair_atoms_1_1_fa25edd0e2.html"
        },
        {
          "name": "extraShipping",
          "values": [
            {
              "value": "0",
              "url": "/python/html5/menu_attr_pair/1000/6000/menu_attr_pair_extraShipping_0_1_bd4d53cdf7.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/6000/menu_attr_pair_extraShipping_0_1_bd4d53cdf7.html"
        },
        {
          "name": "length",
          "values": [
            {
              "value": "935.0",
              "url": "/python/html5/menu_attr_pair/1000/24000000/24367000/menu_attr_pair_length_9350_1_4caac4da90.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/24000000/24367000/menu_attr_pair_length_9350_1_4caac4da90.html"
        },
        {
          "name": "length_Attrib",
          "values": [
            {
              "value": "Wavelength",
              "url": "/python/html5/menu_attr_pair/1000/1000000/1414000/menu_attr_pair_lengthAttrib_Wavelength_1_cb46fe08fc.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/1000000/1414000/menu_attr_pair_lengthAttrib_Wavelength_1_cb46fe08fc.html"
        },
        {
          "name": "moq",
          "values": [
            {
              "value": "1",
              "url": "/python/html5/menu_attr_pair/menu_attr_pair_moq_1_1_29ca727a89.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/menu_attr_pair_moq_1_1_29ca727a89.html"
        },
        {
          "name": "MPN",
          "values": [
            {
              "value": "OP521",
              "url": "/python/html5/menu_attr_pair/1000/24000000/24367000/menu_attr_pair_MPN_OP521_1_0f21961342.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/24000000/24367000/menu_attr_pair_MPN_OP521_1_0f21961342.html"
        },
        {
          "name": "multiple",
          "values": [
            {
              "value": "1",
              "url": "/python/html5/menu_attr_pair/menu_attr_pair_multiple_1_1_2f60c1bab8.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/menu_attr_pair_multiple_1_1_2f60c1bab8.html"
        },
        {
          "name": "qtyInStock",
          "values": [
            {
              "value": "0",
              "url": "/python/html5/menu_attr_pair/menu_attr_pair_qtyInStock_0_1_38510c9e21.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/menu_attr_pair_qtyInStock_0_1_38510c9e21.html"
        },
        {
          "name": "SKU",
          "values": [
            {
              "value": "768508",
              "url": "/python/html5/menu_attr_pair/1000/24000000/24367000/menu_attr_pair_SKU_768508_1_e6ddd2462d.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/24000000/24367000/menu_attr_pair_SKU_768508_1_e6ddd2462d.html"
        },
        {
          "name": "Category",
          "values": [
            {
              "value": "Sensors, Transducers",
              "url": "/python/html5/menu_attr_pair/1000/1000000/1068000/menu_attr_pair_Category_SensorsTransducers_1_148aecdd99.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/1000000/1068000/menu_attr_pair_Category_SensorsTransducers_1_148aecdd99.html"
        },
        {
          "name": "Mfr",
          "values": [
            {
              "value": "TT Electronics/Optek Technology",
              "url": "/python/html5/menu_attr_pair/1000/10000000/10745000/menu_attr_pair_Mfr_TTElectronicsOptekTechnology_1_fce115e40f.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/10000000/10745000/menu_attr_pair_Mfr_TTElectronicsOptekTechnology_1_fce115e40f.html"
        },
        {
          "name": "Series",
          "values": [
            {
              "value": "-",
              "url": "/python/html5/menu_attr_pair/1000/160000/menu_attr_pair_Series_unknown_1_420ccc4cfd.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/160000/menu_attr_pair_Series_unknown_1_420ccc4cfd.html"
        },
        {
          "name": "Package",
          "values": [
            {
              "value": "Tape & Reel (TR)",
              "url": "/python/html5/menu_attr_pair/1000/710000/menu_attr_pair_Package_TapeReelTR_1_0d5e14422d.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/710000/menu_attr_pair_Package_TapeReelTR_1_0d5e14422d.html"
        },
        {
          "name": "Part Status",
          "values": [
            {
              "value": "Obsolete",
              "url": "/python/html5/menu_attr_pair/1000/709000/menu_attr_pair_PartStatus_Obsolete_1_a0246aad69.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/709000/menu_attr_pair_PartStatus_Obsolete_1_a0246aad69.html"
        },
        {
          "name": "Voltage - Collector Emitter Breakdown (Max)",
          "values": [
            {
              "value": "30 V",
              "url": "/python/html5/menu_attr_pair/1000/16000000/16747000/menu_attr_pair_VoltageCollectorEmitterBreakdownMax_30V_1_ce1b8cacf2.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/16000000/16747000/menu_attr_pair_VoltageCollectorEmitterBreakdownMax_30V_1_ce1b8cacf2.html"
        },
        {
          "name": "Current - Collector (Ic) (Max)",
          "values": [
            {
              "value": "20 mA",
              "url": "/python/html5/menu_attr_pair/1000/24000000/24367000/menu_attr_pair_CurrentCollectorIcMax_20mA_1_a656b8ff74.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/24000000/24367000/menu_attr_pair_CurrentCollectorIcMax_20mA_1_a656b8ff74.html"
        },
        {
          "name": "Current - Dark (Id) (Max)",
          "values": [
            {
              "value": "100 nA",
              "url": "/python/html5/menu_attr_pair/1000/24000000/24367000/menu_attr_pair_CurrentDarkIdMax_100nA_1_8f229a6704.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/24000000/24367000/menu_attr_pair_CurrentDarkIdMax_100nA_1_8f229a6704.html"
        },
        {
          "name": "Wavelength",
          "values": [
            {
              "value": "935nm",
              "url": "/python/html5/menu_attr_pair/1000/24000000/24367000/menu_attr_pair_Wavelength_935nm_1_241462c43c.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/24000000/24367000/menu_attr_pair_Wavelength_935nm_1_241462c43c.html"
        },
        {
          "name": "Viewing Angle",
          "values": [
            {
              "value": "-",
              "url": "/python/html5/menu_attr_pair/1000/2000000/2619000/menu_attr_pair_ViewingAngle_unknown_1_165e1a4772.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/2000000/2619000/menu_attr_pair_ViewingAngle_unknown_1_165e1a4772.html"
        },
        {
          "name": "Power - Max",
          "values": [
            {
              "value": "75 mW",
              "url": "/python/html5/menu_attr_pair/1000/24000000/24367000/menu_attr_pair_PowerMax_75mW_1_5e07ae4ce1.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/24000000/24367000/menu_attr_pair_PowerMax_75mW_1_5e07ae4ce1.html"
        },
        {
          "name": "Mounting Type",
          "values": [
            {
              "value": "Surface Mount",
              "url": "/python/html5/menu_attr_pair/1000/710000/menu_attr_pair_MountingType_SurfaceMount_1_2b547b73a9.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/710000/menu_attr_pair_MountingType_SurfaceMount_1_2b547b73a9.html"
        },
        {
          "name": "Orientation",
          "values": [
            {
              "value": "Top View",
              "url": "/python/html5/menu_attr_pair/1000/1000000/1414000/menu_attr_pair_Orientation_TopView_1_a92569ab06.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/1000000/1414000/menu_attr_pair_Orientation_TopView_1_a92569ab06.html"
        },
        {
          "name": "Operating Temperature",
          "values": [
            {
              "value": "-25?C ~ 85?C (TA)",
              "url": "/python/html5/menu_attr_pair/1000/1000000/1414000/menu_attr_pair_OperatingTemperature_25C85CTA_1_8d4073c50f.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/1000000/1414000/menu_attr_pair_OperatingTemperature_25C85CTA_1_8d4073c50f.html"
        },
        {
          "name": "Package / Case",
          "values": [
            {
              "value": "1206 (3216 Metric)",
              "url": "/python/html5/menu_attr_pair/1000/1000000/1364000/menu_attr_pair_PackageCase_12063216Metric_1_ebb5ef48cc.html"
            }
          ],
          "name_url": "/python/html5/menu_attr_pair/1000/1000000/1364000/menu_attr_pair_PackageCase_12063216Metric_1_ebb5ef48cc.html"
        }
      ],
      "images": [],
      "distributors": [
        {
          "name": "Digi-Key",
          "sku": "768508",
          "url": "https://www.digikey.com/en/products/detail/tt-electronics-optek-technology/OP521/768508",
          "pricing": [],
          "stock": {
            "available": false,
            "quantity": null,
            "lead_time_days": null
          },
          "moq": 1,
          "multiple": 1
        },
        {
          "name": "Digi-Key",
          "sku": "365-1156-2-ND",
          "url": "http://www.digikey.com/product-detail/en/tt-electronics-optek-technology/OP521/365-1156-2-ND/768508",
          "pricing": [],
          "stock": {
            "available": false,
            "quantity": null,
            "lead_time_days": null
          },
          "moq": 1,
          "multiple": 2000
        },
        {
          "name": "Digi-Key",
          "sku": "365-1156-1-ND",
          "url": "https://www.digikey.com/product-detail/en/tt-electronics-optek-technology/OP521/365-1156-1-ND/768524",
          "pricing": [],
          "stock": {
            "available": false,
            "quantity": null,
            "lead_time_days": null
          },
          "moq": 1,
          "multiple": 1,
          "image": "https://www.dataalchemy.com/python/getu/a01d85ec-769e-4714-b44c-90d876eb62c0"
        },
        {
          "name": "Radwell",
          "sku": "OP521",
          "url": "http://www.radwell.com/Buy/OPTEK/OPTEK/OP521",
          "pricing": [
            {
              "quantity": 1,
              "price_usd": 0.51
            }
          ],
          "stock": {
            "available": false,
            "quantity": null,
            "lead_time_days": null
          },
          "moq": 1,
          "multiple": 1
        },
        {
          "name": "Hotenda",
          "sku": "H3943740",
          "url": "http://www.hotenda.com/product-item/optical-sensors-phototransistors/OP521/H3943740.html",
          "pricing": [],
          "stock": {
            "available": false,
            "quantity": null,
            "lead_time_days": null
          },
          "moq": 1,
          "multiple": 1
        },
        {
          "name": "Digi-Key",
          "sku": "768524",
          "url": "https://www.digikey.com/en/products/detail/tt-electronics-optek-technology/OP521/768524",
          "pricing": [],
          "stock": {
            "available": false,
            "quantity": null,
            "lead_time_days": null
          },
          "moq": 1,
          "multiple": 1
        },
        {
          "name": "Digi-Key",
          "sku": "2506472",
          "url": "https://www.digikey.com/en/products/detail/tt-electronics-optek-technology/OP521/2506472",
          "pricing": [],
          "stock": {
            "available": false,
            "quantity": null,
            "lead_time_days": null
          },
          "moq": 1,
          "multiple": 1
        }
      ],
      "amazon": {
        "available": false,
        "products": []
      },
      "metadata": {
        "generated_date": "2026-04-26",
        "last_updated": "2026-04-26",
        "data_sources": [
          "Digi-Key",
          "Hotenda",
          "Radwell"
        ],
        "completeness": 0.85,
        "version": "1.2"
      }
    }
  },
  "pagination": null,
  "nav": {
    "home": "/python/html5/index.html",
    "brands": "/python/html5/menu_brand_index/menu_brand_index_brands_87101ba214.html",
    "parts": "/python/html5/menu_part_index/menu_part_index_parts_909e6bf0ca.html",
    "attributes": "/python/html5/menu_attr_index/menu_attr_index_attributes_d7f67a250d.html"
  }
}