{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC150A","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMC150A","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMC150A","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC150A","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5SMC Series Zener TVS Diode, 1.5SMC150A, 1500W Peak Pulse Power, 128V Reverse Standoff, 207V Clamp, DO-214AB SMC Package, Surface Mount.","salesMarkdown":"## 1.5 kW surge clamp in a DO-214AB footprint The 1.5SMC150A: It clamps a 128 V reverse standoff voltage to 207 V maximum at a peak pulse current of 7.3 A, protecting downstream circuitry from transients on a nominal 128 V rail. The 1500 W rating at the 10/1000 µs pulse defines the energy-handling capability for surge events like lightning-induced transients or inductive load switching. The 207 V clamp voltage ensures the protected circuit sees no more than that peak during the event, provided the PCB layout keeps the trace inductance low enough to avoid additional voltage overshoot. ## Clamping parameters and temperature range Breakdown voltage starts at a minimum of 143 V, giving a 15 V margin above the 128 V reverse standoff before the device begins conducting. The single unidirectional channel handles positive-going transients relative to ground. The peak pulse power derates above 25°C per the datasheet curve, so at 85°C ambient the effective surge capability is roughly 70% of the 1500 W rating.","metaTitle":"Littelfuse 1.5SMC150A TVS Diode, 1500W, DO-214AB","metaDescription":"Littelfuse 1.5SMC150A Zener TVS diode, 1500W peak pulse power, 128V reverse standoff, 207V clamp, DO-214AB SMC package. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Type":"Zener","Series":"1.5SMC","Package":"Tape & Reel (TR) Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","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)":"143V","Voltage - Clamping (Max) @ Ipp":"207V","Voltage - Reverse Standoff (Typ)":"128V","Current - Peak Pulse (10/1000µs)":"7.3A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6200","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4a8a4359c4139865ec4feb6a6da8698b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the 1.5SMC150A and how is it quoted?","answer":"The 1.5SMC150A is sourced to order against your BOM quantity through independent and authorized distribution."},{"question":"What is the 1.5SMC150A's peak pulse power rating?","answer":"This defines the energy it can absorb in a single surge event before the junction temperature exceeds the safe limit."},{"question":"What package does the 1.5SMC150A come in?","answer":"It is supplied in a DO-214AB (SMC) surface-mount package, also referred to as SMCJ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMC150A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMC150A when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}