{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC20","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMC20","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMC20","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC20","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5SMC series Zener TVS diode, 1.5SMC20, 1500W peak pulse power, 17.1V standoff, DO-214AB (SMC) surface mount, unidirectional.","salesMarkdown":"## Obsolete — sourcing the 1.5SMC20 for your BOM For existing BOM lines that require this specific order code, sourcing is through independent distribution channels. ## Protection envelope — what the ratings mean This is a Zener-type TVS diode from the 1.5SMC series, rated for 1500W (1.5kW) peak pulse power under a 10/1000µs waveform. The 1500W rating defines the surge energy it can safely clamp — a key parameter for selecting the right protection device for a given transient threat level. It is a single unidirectional channel, meaning it protects one DC line against positive transients. For AC or bidirectional protection, two devices or a bidirectional TVS would be needed. ## Package and board-fit Housed in a DO-214AB (SMC) surface-mount package, also referred to as the SMCJ footprint. This is a standard, hand-solderable SMD package — a hot-air rework station or even a fine-tipped iron with careful technique can handle it for prototyping or small-batch rework.","metaTitle":"Littelfuse 1.5SMC20 TVS Diode, 1500W, DO-214AB","metaDescription":"Littelfuse 1.5SMC20 Zener TVS diode, 1500W peak pulse power, 17.1V standoff, 29.09V clamp. Obsolete — sourced to order. RFQ for availability.","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)":"18V","Voltage - Clamping (Max) @ Ipp":"29.09V","Voltage - Reverse Standoff (Typ)":"17.1V","Current - Peak Pulse (10/1000µs)":"54.9A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/118f1b70ec0f0941665a20e5472af60a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the 1.5SMC20 used for?","answer":"It is a Zener TVS diode used for transient voltage suppression on DC power or signal lines. With a 17.1V standoff and 1500W peak pulse rating, it clamps surges up to 29.09V, protecting downstream circuitry from events like ESD, load dump, or inductive kickback."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMC20","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMC20 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}