{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC24AT3","brand":"onsemi","brandSlug":"onsemi","productSlug":"1.5SMC24AT3","canonicalUrl":"https://icboms.com/onsemi/1.5SMC24AT3","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC24AT3","rawCanonicalId":null},"summary":{"shortDescription":"onsemi 1.5SMC24AT3, Zener TVS Diode, 1500W Peak Pulse Power, 20.5V Reverse Standoff, 1 Channel, DO-214AB SMC Package","salesMarkdown":"## What the 1500W rating means for a 24V rail The 1.5SMC24AT3 is a unidirectional Zener TVS diode rated for 1500W peak pulse power (10/1000µs waveform) with a reverse standoff voltage of 20.5V and a clamping voltage of 33.2V at 45A peak pulse current. This part is designed to clamp transients on a nominal 24V DC bus — the 20.5V standoff keeps leakage negligible under normal operation, while the 33.2V clamp protects downstream components from surges up to 45A. ## Obsolete — plan your BOM move now onsemi has marked the 1.5SMC24AT3 as Obsolete. For a production BOM, you need to secure remaining stock or qualify a replacement. The DO-214AB SMC footprint is shared by many TVS diodes in the 1.5SMC series — a drop-in alternative with the same 1500W rating and 20.5V standoff can be sourced, but confirm the clamping voltage and peak current match your surge requirement. ## Package and mounting for PCB fit Surface-mount SMC package, supplied in Tape & Reel or Cut Tape. The SMC body is larger than the SMA/SMB siblings — ensure your PCB land pattern matches the JEDEC standard for DO-214AB. Operating junction temperature range is -65°C to 150°C, covering industrial and automotive underhood environments.","metaTitle":"1.5SMC24AT3 Zener TVS Diode – onsemi, Obsolete, 1500W","metaDescription":"onsemi 1.5SMC24AT3 Zener TVS diode, 1500W peak pulse, 20.5V standoff, DO-214AB SMC. Obsolete – source stock or find replacement via RFQ.","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)":"22.8V","Voltage - Clamping (Max) @ Ipp":"33.2V","Voltage - Reverse Standoff (Typ)":"20.5V","Current - Peak Pulse (10/1000µs)":"45A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6200","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/67cccc4ec8e3058e4b6b6ee8407ab63e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between 1.5SMC24AT3 and 1.5SMC24A?","answer":"The 1.5SMC24AT3 is a specific onsemi ordering code within the 1.5SMC24A family — the 'T3' suffix typically denotes tape-and-reel packaging. The electrical ratings (20.5V standoff, 33.2V clamp, 1500W) are identical to the base 1.5SMC24A. The 'T3' variant is obsolete; the base 1.5SMC24A may still be active from other manufacturers, but confirm with the supplier."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/1.5SMC24AT3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/1.5SMC24AT3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:13:22.788Z","lastPublished":"2026-07-17T20:13:22.788Z","indexable":true}}