{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ11CAE3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMAJ11CAE3-TR13","canonicalUrl":"https://icboms.com/microchip/SMAJ11CAE3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ11CAE3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMAJ11CAE3/TR13, Zener TVS, bidirectional, 11V reverse standoff, 12.2V breakdown min, 18.2V clamp at 27.4A, 500W peak pulse, DO-214AC (SMA), Tape & Reel, -65°C~150°C","salesMarkdown":"## 11V rail protection — 12.2 V breakdown floor Its minimum breakdown voltage of 12.2 V sits above the 11 V reverse standoff, so the device stays transparent during normal operation and only conducts when the line exceeds the rail tolerance. The 500 W peak pulse rating (10/1000 µs waveform) translates to a 27.4 A peak current capability at the 18.2 V clamp voltage — enough to absorb the energy from a typical inductive kick or ESD event without the junction entering secondary breakdown. ## Bidirectional clamp — one device, both polarities A single bidirectional channel covers both positive and negative transients on the same pair of nodes — no need for two back-to-back unidirectional parts or a bridge rectifier. The 18.2 V clamp voltage is symmetric, so the protection level is identical regardless of surge polarity. This simplifies the BOM on AC-coupled lines, data pairs, or floating supplies where the return path is not ground-referenced. ## DO-214AC (SMA) — footprint and thermal path The DO-214AC (SMA) package is a standard surface-mount outline shared across the entire SMAJ series. A board laid out for any SMAJ voltage rating accepts this 11 V variant without a footprint change — the cathode band orientation is the only variable. The copper pad area under the package sets the junction-to-ambient thermal resistance; for a 500 W pulse the junction temperature rise is brief, but repetitive pulsing at high duty cycles demands a larger pad than the minimum footprint.","metaTitle":"SMAJ11CAE3/TR13 – Microchip 11V Bidirectional TVS, 500W","metaDescription":"SMAJ11CAE3/TR13 – Microchip Zener TVS, 11V reverse standoff, 12.2V breakdown, 18.2V clamp at 27.4A. Active production, DO-214AC (SMA), Tape & Reel.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Microchip Technology","Type":"Zener","Series":"-","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AC, SMA","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"500W","Base Product Number":"SMAJ11","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AC (SMA)","Voltage - Breakdown (Min)":"12.2V","Voltage - Clamping (Max) @ Ipp":"18.2V","Voltage - Reverse Standoff (Typ)":"11V","Current - Peak Pulse (10/1000µs)":"27.4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7b3ddece4863b4621debe180df56adc8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is SMAJ11CAE3/TR13 bidirectional?","answer":"Yes, it is a single bidirectional channel. It clamps both positive and negative surges symmetrically, so one device protects both polarities on a pair of nodes."},{"question":"What package does SMAJ11CAE3/TR13 use?","answer":"The package is DO-214AC (SMA), a standard surface-mount outline. The supplier device package is also listed as DO-214AC (SMA). It is supplied in Tape & Reel (TR) format."},{"question":"What is the peak pulse power rating of SMAJ11CAE3/TR13?","answer":"The peak pulse power is 500 W, tested with a 10/1000 µs waveform. At the 18.2 V clamp voltage, this corresponds to a peak pulse current of 27.4 A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMAJ11CAE3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMAJ11CAE3-TR13 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}}