{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"P6SMB56CAT3","brand":"onsemi","brandSlug":"onsemi","productSlug":"P6SMB56CAT3","canonicalUrl":"https://icboms.com/onsemi/P6SMB56CAT3","factsUrl":"https://icboms.com/api/mcp/products/P6SMB56CAT3","rawCanonicalId":null},"summary":{"shortDescription":"onsemi P6SMB56CAT3 — automotive-grade bidirectional Zener TVS, DO-214AA (SMB), 47.8V reverse standoff, 77V clamp at 7.8A, 600W peak pulse power, AEC-Q101 qualified, obsolete.","salesMarkdown":"For BOM positions still requiring this exact order code, procurement must rely on independent distribution and broker channels. ## AEC-Q101 qualification — what it means for replacement This part carries Automotive, AEC-Q101 qualification, which means it was tested to the stress and reliability requirements for automotive-grade semiconductors — temperature cycling, high-temperature reverse bias, and surge endurance at -65°C to 150°C junction. Any pin-compatible replacement considered for a production line must also be AEC-Q101 certified to avoid a PPAP deviation. The bidirectional channel protects a single signal or power rail; the 185 pF capacitance at 1 MHz is typical for a 600 W TVS in this voltage class and will not load a 1 MHz bus, but should be checked for higher-frequency interfaces. ## Parametric baseline for cross-shopping The 47.8 V reverse standoff and 53.2 V minimum breakdown set the DC operating ceiling: the protected rail must stay below 47.8 V continuous. Clamping at 77 V at the 7.8 A peak pulse current defines the voltage the downstream circuit must survive during a surge. Package is DO-214AA (SMB), surface-mount, supplied on Tape & Reel.","metaTitle":"P6SMB56CAT3 onsemi TVS Diode — Obsolete, AEC-Q101, 600W","metaDescription":"P6SMB56CAT3 from onsemi — Zener TVS, bidirectional, 47.8V standoff, 77V clamp, 600W peak pulse, AEC-Q101 qualified.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"onsemi","Type":"Zener","Series":"Automotive, AEC-Q101","Package":"Tape & Reel (TR)","Applications":"Automotive","Mounting Type":"Surface Mount","Package / Case":"DO-214AA, SMB","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Power - Peak Pulse":"600W","Base Product Number":"P6SMB","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"185pF @ 1MHz","Supplier Device Package":"SMB","Voltage - Breakdown (Min)":"53.2V","Voltage - Clamping (Max) @ Ipp":"77V","Voltage - Reverse Standoff (Typ)":"47.8V","Current - Peak Pulse (10/1000µs)":"7.8A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7982f44255cb5d90f9a69b1cf2fcf475.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order P6SMB56CAT3 or request a quote?","answer":"Submit an RFQ through this page."},{"question":"Is there a direct replacement or cross-reference for P6SMB56CAT3?","answer":"Onsemi does not list an official successor or cross-reference for this obsolete order code. A pin-compatible alternative in the same DO-214AA package with AEC-Q101 qualification would need to match the 47.8 V standoff, 77 V clamp, and 600 W pulse rating — confirm with your application engineer before substituting."},{"question":"What is the P6SMB56CAT3's type and series?","answer":"It is a Zener TVS diode in the Automotive, AEC-Q101 series, bidirectional."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/P6SMB56CAT3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/P6SMB56CAT3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:24:53.180Z","lastPublished":"2026-07-17T20:24:53.180Z","indexable":true}}