{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC120","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMC120","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMC120","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC120","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5SMC series Zener TVS diode, 1.5SMC120, 1500W peak pulse power, 102V standoff, 108V breakdown, 173.25V clamping, DO-214AB SMC package, Tape & Reel.","salesMarkdown":"## 1500W Zener TVS in DO-214AB — what the ratings mean for the board The 1.5SMC120: The 102V reverse standoff voltage means the diode sits transparently on a nominal 100V DC rail, only conducting when the line exceeds the 108V minimum breakdown threshold. This is a single unidirectional channel — one TVS die in the DO-214AB (SMCJ) package, rated for continuous operation from -55°C to 150°C junction temperature. The wide temperature range suits outdoor telecom rectifiers, industrial power supplies, and battery-charger output stages where the ambient inside the enclosure can exceed 85°C. ## Obsolete — sourcing reality for the 1.5SMC120 Littelfuse has marked the 1.5SMC120 as Obsolete. No official successor order code is recorded on the lifecycle entry — there is no direct pin-compatible replacement from Littelfuse that carries the same 102V standoff and 1500W rating in the DO-214AB package. Availability is lot-specific; a sealed reel with consistent date-codes is the preferred condition. The DO-214AB (SMC) footprint measures roughly 7.1 mm × 6.2 mm with a 2.6 mm seated height. The cathode band on the body matches the package marking — the unidirectional orientation matters for DC rail protection; reverse insertion defeats the clamping function. The SMC package is larger than the DO-214AA (SMB) used by lower-power TVS diodes, so a board designed for the 1.5SMC series has the pad area to handle the 1500W pulse without the solder joint fatigue seen on smaller packages under repetitive surge stress.","metaTitle":"Littelfuse 1.5SMC120 TVS Diode, 1500W, DO-214AB","metaDescription":"Obsolete Littelfuse 1.5SMC120 Zener TVS diode, 1500W peak pulse power, 102V standoff, DO-214AB SMC package.","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)":"108V","Voltage - Clamping (Max) @ Ipp":"173.25V","Voltage - Reverse Standoff (Typ)":"102V","Current - Peak Pulse (10/1000µs)":"9.2A"}},"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/1.5SMC120","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMC120 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}}