{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC540C","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMC540C","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMC540C","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC540C","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse 1.5SMC series Zener TVS diode, bidirectional, 1500W peak pulse power, 777V clamping, DO-214AB SMC package, Tape & Reel.","salesMarkdown":"The 1.5SMC540C: For a BOM that must stay in the DO-214AB footprint, a parametric search for a 1500 W bidirectional TVS with a 486 V standoff voltage is the starting point, but a board spin may be required. ## Clamping voltage and surge rating A single bidirectional channel handles surges in both polarities — useful on AC signal lines or DC rails where the polarity could reverse during a fault. The SMC footprint is larger than the SMA/SMB siblings — the extra copper area under the cathode tab helps dissipate the 1500 W pulse without exceeding the junction limit.","metaTitle":"1.5SMC540C Littelfuse TVS Diode, 1500W, Bidirectional","metaDescription":"Littelfuse 1.5SMC540C Zener TVS diode, 1500W peak pulse, 777V clamping, 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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMCJ)","Voltage - Breakdown (Min)":"486V","Voltage - Clamping (Max) @ Ipp":"777V","Voltage - Reverse Standoff (Typ)":"486V","Current - Peak Pulse (10/1000µs)":"2A"}},"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/1.5SMC540C/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 1.5SMC540C in this Circuit Protection family?","answer":"Littelfuse does not list an official successor or pin-compatible replacement for the 1.5SMC540C. A parametric search for a 1500 W bidirectional TVS in DO-214AB with a 486 V standoff voltage is the starting point for a substitute, but a board spin may be necessary."},{"question":"What compliance documentation does Littelfuse Inc. provide for 1.5SMC540C?","answer":"For obsolete parts sourced through independent channels, compliance status is confirmed at the time of quote."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMC540C","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMC540C when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T09:21:55.558Z","lastPublished":"2026-07-21T09:21:55.558Z","indexable":true}}