{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC13AT3G","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMC13AT3G","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMC13AT3G","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC13AT3G","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5SMC series Zener TVS diode, 1.5SMC13AT3G, 1500W peak pulse power, 11.1V reverse standoff, 18.2V clamp, DO-214AB SMC package, Tape & Reel.","salesMarkdown":"## Obsolete 1500 W TVS — what the ratings mean for a replacement search The 1.5SMC13AT3G: Its 18.2 V clamping voltage at the 82 A peak-pulse current (10/1000 µs waveform) means it limits the overvoltage seen by downstream silicon to under 19 V — a figure that matters for a 12 V bus where the protected device's abs-max rating is typically 20-24 V. The 1500 W rating is the peak pulse power dissipation for a 10/1000 µs exponential waveform; derate this for shorter or longer pulses per the manufacturer's curve. For a 12 V automotive or industrial DC bus, the 11.1 V reverse standoff means the diode does not conduct at the nominal rail voltage, only above the 12.4 V minimum breakdown threshold. ## Package and board-fit — DO-214AB SMC footprint The DO-214AB (SMC) package is a standard surface-mount footprint for high-power TVS diodes. The part is unidirectional (single-channel Zener), so the cathode band on the body must align with the positive rail being protected. Operating temperature range is -65 °C to +150 °C junction, covering automotive under-hood and industrial enclosure environments. No power line protection (bidirectional) — this is strictly for unidirectional DC rail clamping. ## Sourcing an obsolete part — the procurement reality Littelfuse has marked the 1.5SMC13AT3G as obsolete.","metaTitle":"1.5SMC13AT3G Littelfuse TVS Diode, 1500W, 11.1V Standoff","metaDescription":"Littelfuse 1.5SMC13AT3G 1500W Zener TVS diode, 11.1V reverse standoff, 18.2V clamp.","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":"-65°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMC","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"12.4V","Voltage - Clamping (Max) @ Ipp":"18.2V","Voltage - Reverse Standoff (Typ)":"11.1V","Current - Peak Pulse (10/1000µs)":"82A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6200","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ea97bb520e37528ab309c554c0bb147d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does 1.5SMC13AT3G use?","answer":"It uses the DO-214AB (SMC) surface-mount package. The supplier device package is also listed as SMC."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMC13AT3G","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMC13AT3G 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}}