{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ78CE3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMAJ78CE3-TR13","canonicalUrl":"https://icboms.com/microchip/SMAJ78CE3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ78CE3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMAJ78CE3/TR13, Zener TVS diode, 78V reverse standoff, 86.7V min breakdown, 139V clamping at 3.6A, 500W peak pulse power, DO-214AC (SMA) package, Tape & Reel, Active.","salesMarkdown":"## 78 V rail protector — Zener TVS in DO-214AC Its 86.7 V minimum breakdown voltage means the avalanche triggers before the protected circuit sees damaging voltage, and the 139 V maximum clamping at 3.6 A peak pulse current (10/1000 µs waveform) keeps the spike below the breakdown of typical downstream semiconductors. Rated for 500 W peak pulse power, this part handles moderate transients on industrial or telecom supplies. The DO-214AC (SMA) surface-mount package suits automated assembly and keeps the footprint compact. On a 48 V nominal bus with 20 % tolerance, this part stays off until a transient pushes the rail above 78 V. The 86.7 V minimum breakdown ensures the avalanche starts early enough to clamp before the spike reaches 139 V. At 3.6 A peak pulse current, the clamping voltage is held to 139 V. For a 500 W peak pulse rating, the actual energy capability depends on the pulse duration — the 10/1000 µs waveform is the standard telecom test condition. If your transient is shorter, the part absorbs more peak power; if longer, derate accordingly. No power line protection — it is not designed for continuous overvoltage on AC mains, only for transient suppression on DC rails or signal lines. ## Active production — sourcing and package details The DO-214AC (SMA) package has a standard 0.065-inch body width and 0.040-inch height — confirm your solder paste stencil aperture for the gull-wing leads. For volume pricing and lead time, submit an RFQ against your BOM quantity.","metaTitle":"SMAJ78CE3/TR13 – Microchip 78V Zener TVS, 500W, DO-214AC","metaDescription":"Microchip SMAJ78CE3/TR13 Zener TVS diode: 78V reverse standoff, 86.7V min breakdown, 139V clamping at 3.6A, 500W peak pulse, DO-214AC SMA.","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":"SMAJ78","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)":"86.7V","Voltage - Clamping (Max) @ Ipp":"139V","Voltage - Reverse Standoff (Typ)":"78V","Current - Peak Pulse (10/1000µs)":"3.6A"}},"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 SMAJ78CE3/TR13 RoHS compliant?","answer":"The evidence does not explicitly list RoHS compliance. Check the latest Microchip datasheet or contact our team with your compliance requirement for confirmation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMAJ78CE3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMAJ78CE3-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}}