{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ33A-13","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"SMAJ33A-13","canonicalUrl":"https://icboms.com/diodes-inc/SMAJ33A-13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ33A-13","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated SMAJ33A-13 TVS Zener Diode, 33V Reverse Standoff, 53.3V Clamp, 400W Peak Pulse, DO-214AC (SMA), Surface Mount.","salesMarkdown":"## 33V rail clamp — what the ratings tell you The SMAJ33A-13 is a unidirectional TVS Zener diode from Diodes Incorporated, clamping a 33V nominal rail at 53.3V when hit with a 7.5A peak pulse (10/1000µs waveform). Rated for 400W peak pulse power, it shunts transients on a 33V supply line — think 24V industrial bus, 28V avionics, or 36V battery outputs — without the part self-destructing on a single event. ## Breakdown window and clamping ceiling Breakdown triggers at 36.7V minimum, so a 33V rail sitting at 10% tolerance (36.3V) stays below the avalanche knee — the diode only conducts when a real surge pushes past the regulation band. Clamp voltage of 53.3V at 7.5A peak pulse means downstream 40V-rated FETs or 50V-rated caps see a hard ceiling — the TVS absorbs the energy before the silicon behind it fails. No power-line protection — this is a signal-rail or low-side TVS, not meant for AC mains or high-energy industrial bus clamping where a higher joule rating is needed. ## DO-214AC footprint and temp range Packaged in DO-214AC (SMA), the same footprint as standard SMB/SMC TVS diodes — a rework tech can swap it with a hot-air station at 260°C peak profile without pad lifting. Operates from -55°C to 150°C junction — cold-crank battery dips at -40°C or engine-bay soak at 125°C both sit inside the safe operating area. Available on tape-and-reel or cut tape — pick-and-place ready for 8mm carrier pitch, 180mm reel for high-volume lines. Status is Active — no EOL notice, no last-time-buy window. Diodes Inc continues to fab and assemble this part.","metaTitle":"SMAJ33A-13 Diodes Inc TVS, 33V Standoff, DO-214AC","metaDescription":"SMAJ33A-13 TVS diode, 33V reverse standoff, 53.3V clamp, 400W peak pulse. Active production. Request RFQ for current pricing and availability.","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","lifecycle_stage":"eol_hot","Power - Peak Pulse":"400W","Base Product Number":"SMAJ33","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMA","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"36.7V","Voltage - Clamping (Max) @ Ipp":"53.3V","Voltage - Reverse Standoff (Typ)":"33V","Current - Peak Pulse (10/1000µs)":"7.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a6e414533ed6f0f7c15ae6d19d66ae3c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for SMAJ33A-13?","answer":"Submit an RFQ through this listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diodes-inc/SMAJ33A-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/SMAJ33A-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}}