{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC43","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMC43","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMC43","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC43","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5SMC series Zener TVS diode, 1.5SMC43, 1500W peak pulse power, 36.8V reverse standoff, 25.6A peak pulse current, DO-214AB (SMC) surface mount, Tape & Reel.","salesMarkdown":"## 1500 W peak pulse — what it means for the rail The 1.5SMC43 is a Littelfuse Zener TVS diode from the 1.5SMC series, rated for 1500 W peak pulse power at 10/1000 µs waveform. ## Obsolete — sourcing reality for sustainment For BOM sustainment on existing designs, this part is sourced through independent distribution channels — quantities are lot-specific and confirmed at RFQ. A pin-compatible functional replacement from the same 1.5SMC series with the same standoff voltage may exist, but no direct cross-reference is recorded here — each replacement candidate must be verified against the original clamping and breakdown specs. The package footprint is standard for 1500 W TVS diodes — the same pad layout serves many alternate parts if a second-source is needed. The wide range means derating for ambient temperature is minimal in most indoor or engine-bay applications.","metaTitle":"Littelfuse 1.5SMC43 TVS Diode, 1500W, DO-214AB","metaDescription":"Littelfuse 1.5SMC43 Zener TVS diode, 1500W peak pulse power, 36.8V standoff, DO-214AB. Obsolete — sourced to order against RFQ through independent channels.","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)":"38.75V","Voltage - Clamping (Max) @ Ipp":"62.27V","Voltage - Reverse Standoff (Typ)":"36.8V","Current - Peak Pulse (10/1000µs)":"25.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/118f1b70ec0f0941665a20e5472af60a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC43/alternatives.json"},"ai":{"faq":[{"question":"What is the 1.5SMC43's type and series?","answer":"It is a Zener-type TVS diode from the 1.5SMC series, providing a single unidirectional channel of protection."},{"question":"What package does the 1.5SMC43 use?","answer":"The DO-214AB (SMC) surface-mount package, also known as SMCJ. It is supplied in Tape & Reel packaging."},{"question":"Does the 1.5SMC43 provide power line protection?","answer":"No."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMC43","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMC43 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T09:07:06.395Z","lastPublished":"2026-07-21T09:07:06.395Z","indexable":true}}