{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMBJ40A-13-F","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"SMBJ40A-13-F","canonicalUrl":"https://icboms.com/diodes-inc/SMBJ40A-13-F","factsUrl":"https://icboms.com/api/mcp/products/SMBJ40A-13-F","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated SMBJ series Zener TVS, SMBJ40A-13-F, 600W peak pulse, 40V reverse standoff, unidirectional, DO-214AA SMB, Tape & Reel.","salesMarkdown":"## 40V rail clamp with 600W pulse capacity The SMBJ40A-13-F: It clamps a 40V reverse standoff rail at 64.5V max, with a breakdown voltage guaranteed between 44.4V and the clamp threshold. ## Voltage stack and pulse current The 40V reverse standoff is the continuous DC voltage the TVS blocks without conducting. Breakdown starts at 44.4V min, and the clamp voltage peaks at 64.5V at the rated 9.3A peak pulse current. This 24.5V window between standoff and clamp means a 48V bus or a 36V rail with transients up to 64.5V is within the device's protection envelope. For shorter pulses (8/20µs) the peak power capability is higher; derate above 25°C per the datasheet curve. ## Package and board-fit The SMB footprint is larger than the SMA sibling, offering better thermal dissipation for the 600W pulse. The cathode band on the package body marks the unidirectional orientation. The tape-and-reel packaging suits high-volume pick-and-place assembly. Marked as Active on the lifecycle record. No end-of-life notice or successor part is on file.","metaTitle":"Diodes SMBJ40A-13-F TVS, 600W, 40V Standoff, DO-214AA","metaDescription":"SMBJ40A-13-F Zener TVS diode, 600W peak pulse, 40V reverse standoff, unidirectional, DO-214AA SMB. Active production. Order against RFQ.","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","Product Status":"Active","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":"$0.4300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/205f8bffce2c4a83c3c83b7d81a1413c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does SMBJ40A-13-F use?","answer":"It uses a DO-214AA (SMB) surface-mount package, also designated as supplier device package SMB."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diodes-inc/SMBJ40A-13-F","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-F 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}}