{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC47","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMC47","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMC47","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC47","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5SMC series Zener TVS diode, 1.5SMC47, 1500W peak pulse power, 40.2V standoff, unidirectional, DO-214AB (SMC) package, Tape & Reel.","salesMarkdown":"The 1.5SMC47 is listed as Obsolete by Littelfuse. Sourced through independent distribution; quantities are lot-specific and confirmed at RFQ. ## Key ratings and what they mean for the BOM The clamping voltage at that peak current is 68.04 V, so a 40.2 V standoff rail sees the line held to under 68 V during a transient. Breakdown voltage is 42.35 V minimum — the diode starts conducting between 42.35 V and the clamping ceiling. Unidirectional (one channel), so it protects a single DC rail against positive transients to ground. DO-214AB (SMC) surface-mount package — the same footprint as the SMCJ series. The copper pad area under the cathode tab sets the thermal resistance; a full pad with thermal vias to the ground plane improves surge current handling. Supplied in Tape & Reel — compatible with automated pick-and-place assembly. No power line protection (not intended for AC mains clamping); use for DC rail transient suppression in general-purpose electronics.","metaTitle":"Littelfuse 1.5SMC47 TVS Diode, 1500W, DO-214AB","metaDescription":"Littelfuse 1.5SMC47 Zener TVS diode, 1500W peak pulse power, 40.2V standoff, DO-214AB. Obsolete — sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Type":"Zener","Series":"1.5SMC","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Obsolete","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMCJ)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"42.35V","Voltage - Clamping (Max) @ Ipp":"68.04V","Voltage - Reverse Standoff (Typ)":"40.2V","Current - Peak Pulse (10/1000µs)":"23.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/118f1b70ec0f0941665a20e5472af60a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC47/alternatives.json"},"ai":{"faq":[{"question":"How can I order 1.5SMC47 or check availability?","answer":"Submit an RFQ for lot-specific inventory."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMC47","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMC47 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T09:11:25.506Z","lastPublished":"2026-07-21T09:11:25.506Z","indexable":true}}