{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMBJ40A-13","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"SMBJ40A-13","canonicalUrl":"https://icboms.com/diodes-inc/SMBJ40A-13","factsUrl":"https://icboms.com/api/mcp/products/SMBJ40A-13","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated SMBJ series Zener TVS diode, SMBJ40A-13, 40V reverse standoff, 64.5V clamp, 600W peak pulse power, unidirectional, DO-214AA SMB surface mount.","salesMarkdown":"## Protection ratings and the clamping decision The SMBJ40A-13: Its 40 V reverse standoff voltage means the protected circuit sees no leakage at normal operating voltage up to 40 V. The 64.5 V clamp ceiling means the protected device needs a breakdown rating above that level — a 60 V-rated IC would be marginal; 75 V or higher is the safer choice. Housed in the DO-214AA (SMB) surface-mount package, the SMBJ40A-13 occupies a standard footprint shared across the SMBJ series. The part is unidirectional, so polarity matters in layout — the cathode band on the package must face the positive rail. ## Active lifecycle and sourcing posture The base product number SMBJ40 allows cross-referencing within the SMBJ family for alternate voltage variants if the 40 V standoff does not match the rail.","metaTitle":"Diodes Inc SMBJ40A-13 TVS Diode, 600W, DO-214AA SMB","metaDescription":"SMBJ40A-13 Zener TVS diode from Diodes Inc. 40V standoff, 64.5V clamp, 600W peak pulse power. Active production. Surface mount DO-214AA SMB. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Diodes Incorporated","Type":"Zener","Series":"SMBJ","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AA, SMB","lifecycle_stage":"eol_hot","Power - Peak Pulse":"600W","Base Product Number":"SMBJ40","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMB","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"44.4V","Voltage - Clamping (Max) @ Ipp":"64.5V","Voltage - Reverse Standoff (Typ)":"40V","Current - Peak Pulse (10/1000µs)":"9.3A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/5082cff9e06e9e3934f006f5710ece61.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SMBJ40A-13/alternatives.json"},"ai":{"faq":[{"question":"What is the SMBJ40A-13 used for?","answer":"This Zener TVS diode protects a single DC rail or signal line from voltage transients. With a 40 V reverse standoff and a 64.5 V clamping voltage, it is suited for 24-36 V DC buses in industrial control, telecom, and general-purpose power supplies where the protected device has a breakdown rating above 64.5 V."},{"question":"What package does the SMBJ40A-13 come in?","answer":"The SMBJ40A-13 is supplied in the DO-214AA (SMB) surface-mount package. It is available in Tape & Reel (TR) or Cut Tape (CT) options, making it suitable for both prototype assembly and production pick-and-place."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diodes-inc/SMBJ40A-13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diodes-inc/SMBJ40A-13 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}}