{"v":"2.0","page_type":"product","title":"H21A4","breadcrumbs":[{"label":"Home","href":"/python/html6/index.html"},{"label":"Brands","href":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html"},{"label":"Fairchild Semiconductor","href":"/python/html6/menu_brand_products/1000/112000/menu_brand_products_FAIRCHILDSEMICONDUCTOR_1_78b53d36da.html"},{"label":"H21A4","href":null}],"content":{"product":{"mpn":"H21A4","manufacturer":"Fairchild Semiconductor","brand":"Fairchild Semiconductor","brand_url":"/python/html6/menu_brand_products/1000/112000/menu_brand_products_FAIRCHILDSEMICONDUCTOR_1_78b53d36da.html","title":"H21A4","description":"","attributes":[{"name":"Brand name","values":[{"value":"Fairchild Semiconductor","url":"/python/html6/menu_attr_pair/1000/166000000/166920000/menu_attr_pair_Brandname_FairchildSemiconductor_1_c3bbd33ce1.html"}],"name_url":"/python/html6/menu_attr_pair/1000/166000000/166920000/menu_attr_pair_Brandname_FairchildSemiconductor_1_c3bbd33ce1.html"},{"name":"Manufacturer name","values":[{"value":"Fairchild Semiconductor","url":"/python/html6/menu_attr_pair/1000/21000000/21838000/menu_attr_pair_Manufacturername_FairchildSemiconductor_1_f010e3d6d0.html"}],"name_url":"/python/html6/menu_attr_pair/1000/21000000/21838000/menu_attr_pair_Manufacturername_FairchildSemiconductor_1_f010e3d6d0.html"},{"name":"Manufacturer","values":[{"value":"Fairchild Semiconductor","url":"/python/html6/menu_attr_pair/1000/149000000/149400000/menu_attr_pair_Manufacturer_FairchildSemiconductor_1_8e43a1325a.html"}],"name_url":"/python/html6/menu_attr_pair/1000/149000000/149400000/menu_attr_pair_Manufacturer_FairchildSemiconductor_1_8e43a1325a.html"}],"images":[],"distributors":[{"name":"Rochester Electronics","sku":"H21A4","url":"https://octopart.com/click/track?country=US&ak=1431dd31&sig=0ede75b&sid=5832&ppid=707791&vpid=84920846&ct=offers","pricing":[{"quantity":1,"price_usd":0.87}],"stock":{"available":true,"quantity":40,"lead_time_days":0},"moq":null,"multiple":null},{"name":"Ewing Components","sku":"H21A4","url":"https://octopart.com/click/track?country=US&ak=1431dd31&sig=0c7a4ef&sid=11603&ppid=707791&vpid=257868233&ct=offers","pricing":[],"stock":{"available":true,"quantity":7010,"lead_time_days":0},"moq":null,"multiple":null},{"name":"Digi-Key","sku":"H21A4-ND","url":"https://www.digikey.com/product-detail/en/on-semiconductor/H21A4/H21A4-ND/401316","pricing":[],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":50},{"name":"Hotenda","sku":"H3942911","url":"http://www.hotenda.com/product-item/optical-sensors-photointerrupters-slot-type-transistor-output/H21A4/H3942911.html","pricing":[],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1},{"name":"Digi-Key","sku":"401316","url":"https://www.digikey.com/en/products/detail/onsemi/H21A4/401316","pricing":[],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1},{"name":"Digi-Key","sku":"11553858","url":"https://www.digikey.com/en/products/detail/rochester-electronics-llc/H21A4/11553858","pricing":[],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.digikey.com/-/media/Images/Header/logo_dk.png"}],"amazon":{"available":false,"products":[]},"metadata":{"generated_date":"2026-09-16","last_updated":"2026-09-16","data_sources":["Digi-Key","Ewing Components","Hotenda","Rochester Electronics"],"completeness":0.65,"version":"1.2"}}},"pagination":null,"nav":{"home":"/python/html6/index.html","brands":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html","parts":"/python/html6/menu_part_index/menu_part_index_parts_909e6bf0ca.html","attributes":"/python/html6/menu_attr_index/menu_attr_index_attributes_d7f67a250d.html"}}