{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ18A-13-F","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"SMAJ18A-13-F","canonicalUrl":"https://icboms.com/diodes-inc/SMAJ18A-13-F","factsUrl":"https://icboms.com/api/mcp/products/SMAJ18A-13-F","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated SMAJ18A-13-F Zener TVS diode, unidirectional, 18V reverse standoff, 29.2V clamp, 400W peak pulse, DO-214AC SMA package, Tape & Reel.","salesMarkdown":"## Protection spec for an 18V rail The SMAJ18A-13-F: Its 20V minimum breakdown voltage triggers before the protected circuitry sees overvoltage, and the 29.2V maximum clamping voltage at 13.7A peak pulse current (10/1000µs waveform) limits the spike to a level most downstream 18V-rated parts survive. Rated for 400W peak pulse power, this part handles moderate surge events common in industrial control and general-purpose DC power buses. The wide range means no derating headache for most industrial and automotive under-hood applications. Surface-mount assembly on a standard FR-4 board with adequate copper area under the SMA pad keeps the thermal impedance low. No power line protection feature means this is a signal or low-power rail protector, not a mains-side suppressor. ## Lifecycle and BOM stability Marked as Active by Diodes Incorporated, the SMAJ18A-13-F carries no end-of-life notice. This is a standard catalog part in the SMAJ18A family, widely second-sourced across the TVS industry — the 18V standoff and DO-214AC footprint are common enough that a BOM position using this part number is not locked to a single supplier.","metaTitle":"SMAJ18A-13-F Diodes Inc TVS Diode, 18V, 400W, DO-214AC","metaDescription":"SMAJ18A-13-F Diodes Inc Zener TVS diode, 18V reverse standoff, 29.2V clamp, 400W peak pulse. Active lifecycle. DO-214AC SMA package. 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":"-","Package":"Tape & Reel (TR) Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AC, SMA","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"400W","Base Product Number":"SMAJ18","Operating Temperature":"-55°C ~ 150°C (TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMA","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"20V","Voltage - Clamping (Max) @ Ipp":"29.2V","Voltage - Reverse Standoff (Typ)":"18V","Current - Peak Pulse (10/1000µs)":"13.7A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0270111b098582f24c0b7d28e81a77ac.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diodes-inc/SMAJ18A-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/SMAJ18A-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}}