{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC30AT3","brand":"onsemi","brandSlug":"onsemi","productSlug":"1.5SMC30AT3","canonicalUrl":"https://icboms.com/onsemi/1.5SMC30AT3","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC30AT3","rawCanonicalId":null},"summary":{"shortDescription":"onsemi 1.5SMC30AT3, Zener TVS diode, 1500W peak pulse power, 25.6V reverse standoff, 41.4V clamping, DO-214AB (SMC) surface-mount package.","salesMarkdown":"## Zener TVS for 24V rail protection The 1.5SMC30AT3 is a unidirectional Zener TVS diode from onsemi, rated for 1500W peak pulse power (10/1000µs waveform). It protects a single line with a 25.6V reverse standoff voltage, a minimum breakdown of 28.5V, and a maximum clamping voltage of 41.4V at 36A peak pulse current. This part is designed for general-purpose transient suppression on 24V DC rails — the standoff voltage sits comfortably above the nominal rail, while the clamp keeps the spike below downstream component ratings. ## Obsolete — sourcing options onsemi has marked the 1.5SMC30AT3 as Obsolete. No factory orders are accepted; availability is limited to existing distributor stock or last-time-buy remnants. For a BOM line that must be filled, the SMC footprint is shared by many active TVS parts from onsemi and other manufacturers — a cross-reference search is the practical next step. ## Package and mounting Supplied in Tape & Reel (TR) or Cut Tape (CT) options, surface-mount to SMC. The SMC body handles the 1500W pulse without exceeding the junction temperature limit of -65°C to 150°C.","metaTitle":"1.5SMC30AT3 Zener TVS Diode – onsemi, 1500W, DO-214AB (SMC)","metaDescription":"1.5SMC30AT3 from onsemi: Zener TVS, 1500W peak pulse, 25.6V standoff, 41.4V clamp, DO-214AB. Obsolete – confirm stock and cross-reference before BOM commitment.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"onsemi","Type":"Zener","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Obsolete","lifecycle_stage":"eol_hot","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)":"28.5V","Voltage - Clamping (Max) @ Ipp":"41.4V","Voltage - Reverse Standoff (Typ)":"25.6V","Current - Peak Pulse (10/1000µs)":"36A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/67cccc4ec8e3058e4b6b6ee8407ab63e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order 1.5SMC30AT3 or check stock?","answer":"The 1.5SMC30AT3 is obsolete per onsemi. No direct factory orders are available. Stock is limited to distributor inventory — submit an RFQ for current availability and pricing. We source across our network and confirm at quote time."},{"question":"What is the replacement for 1.5SMC30AT3?","answer":"onsemi has not published an official successor for this order code. A functionally equivalent TVS with the same DO-214AB footprint, 1500W rating, and similar standoff/clamp voltages (e.g., 1.5SMC30A from onsemi or a Littelfuse SMCJ series part) is the typical cross-reference path. Confirm the breakdown and clamp thresholds against your rail before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/1.5SMC30AT3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/1.5SMC30AT3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:13:22.046Z","lastPublished":"2026-07-17T20:13:22.046Z","indexable":true}}