{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC180","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMC180","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMC180","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC180","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5SMC series Zener TVS diode, 1.5SMC180, 1500W peak pulse power, 154V reverse standoff, 258.3V clamping, DO-214AB SMC surface mount package.","salesMarkdown":"## What the 1500 W rating means for the board The 1.5SMC180: The 258.3 V clamping voltage at 6.2 A peak pulse current (10/1000 µs waveform) defines the maximum voltage the downstream circuitry sees during a surge event — a critical number for selecting downstream capacitor voltage ratings and MOSFET Vds margins. ## Obsolete — sourcing through independent channels Littelfuse has marked the 1.5SMC180 as Obsolete. No official successor or second-source part number is recorded in the manufacturer's lifecycle documentation. For a BOM line that requires a guaranteed supply path, a form-fit-function evaluation against an active TVS diode with the same DO-214AB footprint and 154 V standoff is the practical next step. ## DO-214AB SMC — board-fit note The 1.5SMC180 is supplied in a DO-214AB (SMC) surface-mount package, also designated as the SMCJ footprint. The wide-body SMC package is sized to handle the 1500 W pulse without lifting the leads — the copper pad area under the cathode tab sets the thermal impedance for repetitive surge events. The -55°C to 150°C junction temperature range covers most industrial and telecom environments, though the 150°C TJ limit means the average power dissipation in a hot enclosure must be checked against the derating curve.","metaTitle":"Littelfuse 1.5SMC180 TVS Diode, 1500W, 154V Standoff","metaDescription":"Littelfuse 1.5SMC180 Zener TVS diode, 1500W peak pulse power, 154V reverse standoff, DO-214AB. Obsolete — sourced to order against RFQ.","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)":"162V","Voltage - Clamping (Max) @ Ipp":"258.3V","Voltage - Reverse Standoff (Typ)":"154V","Current - Peak Pulse (10/1000µs)":"6.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/118f1b70ec0f0941665a20e5472af60a.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMC180","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMC180 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}}