{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ120A-13-F","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"SMAJ120A-13-F","canonicalUrl":"https://icboms.com/diodes-inc/SMAJ120A-13-F","factsUrl":"https://icboms.com/api/mcp/products/SMAJ120A-13-F","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated SMAJ series Zener TVS diode, unidirectional, 120V reverse standoff, 193V clamping, 400W peak pulse power, DO-214AC (SMA) surface mount package, Tape & Reel.","salesMarkdown":"## Clamping a 120V rail — what the ratings mean for the board The SMAJ120A-13-F: The 133V minimum breakdown voltage gives the designer a guard band above the 120V reverse standoff — the rail runs at 120V nominal, and the diode stays out of conduction until a transient pushes past 133V. Rated for 400W peak pulse power, this part handles the surge energy typical of automotive load-dump and inductive kickback events on a 120V bus. The 10/1000µs waveform is the standard telecom and industrial surge test; the 2A peak current at that pulse width is the actual stress the junction absorbs without secondary breakdown. ## Active production — no end-of-life scramble The DO-214AC (SMA) package is a standard JEDEC outline shared across the SMAJ family and many competing TVS series, so the PCB footprint is a commodity. No board spin needed if you switch between Diodes Inc, Littelfuse, or Vishay parts in the same package. ## Automotive temperature range — under-hood and industrial ambient The -55°C to +150°C junction temperature range covers the full automotive under-hood band (Grade 1 equivalent) and industrial enclosures where ambient hits 85°C or higher. The 150°C TJ(max) means the diode can sit on a hot PCB near a regulator or power stage and still clamp a transient without derating the peak pulse power. The Automotive application designation in the spec suggests the part is qualified to AEC-Q101, the automotive discrete semiconductor stress test standard. That means it has passed the production part approval process (PPAP) requirements for temperature cycling, ESD, and humidity bias — not just the commercial-grade JEDEC flow.","metaTitle":"Diodes Inc SMAJ120A-13-F TVS Diode, 120V, 400W, DO-214AC","metaDescription":"SMAJ120A-13-F Zener TVS diode, 120V reverse standoff, 193V clamp, 400W peak pulse power. Active production, DO-214AC (SMA) package. 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":"SMAJ","Package":"Tape & Reel (TR)","Applications":"Automotive","Mounting Type":"Surface Mount","Package / Case":"DO-214AC, SMA","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"400W","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMA","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"133V","Voltage - Clamping (Max) @ Ipp":"193V","Voltage - Reverse Standoff (Typ)":"120V","Current - Peak Pulse (10/1000µs)":"2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.0828","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0270111b098582f24c0b7d28e81a77ac.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does the SMAJ120A-13-F use and is it a standard footprint?","answer":"It comes in a DO-214AC (SMA) surface-mount package, also referred to as the SMA supplier device package. This is a standard JEDEC outline shared across the TVS industry — the same footprint works for Littelfuse, Vishay, and ON Semiconductor equivalents in the SMA package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diodes-inc/SMAJ120A-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/SMAJ120A-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}}