{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ110E3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMAJ110E3-TR13","canonicalUrl":"https://icboms.com/microchip/SMAJ110E3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ110E3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMAJ110E3/TR13, Zener TVS Diode, 500W peak pulse power, 110V reverse standoff, unidirectional, DO-214AC (SMA) package, Tape & Reel.","salesMarkdown":"## Transient protection for 110V rails – what the ratings mean The 122V minimum breakdown voltage gives a 12V margin above the working rail before clamping starts — enough headroom for a 110V DC bus or AC line after rectification without nuisance triggering. That clamp voltage is the ceiling the protected circuit sees; a downstream DC-DC converter or relay coil rated for 200V would survive this transient. ## Package and thermal routing in the DO-214AC (SMA) footprint Housed in the DO-214AC (SMA) surface-mount package, this part reflows on a standard 2-layer board. The cathode tab on the SMA footprint is the primary heat path — the copper pad area under it directly sets the junction-to-ambient thermal resistance. For a 500W pulse, the thermal mass of the pad and board absorbs the energy; a 1 oz copper pour of at least 300 mm² is typical to keep the junction within the -65°C to 150°C operating range.","metaTitle":"SMAJ110E3/TR13 TVS Diode – 500W Zener, DO-214AC, Microchip","metaDescription":"Microchip SMAJ110E3/TR13 Zener TVS, 500W peak pulse power, 110V standoff, DO-214AC SMA package. Active lifecycle. Sourced per RFQ.","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":"SMAJ110","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AC (SMA)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"122V","Voltage - Clamping (Max) @ Ipp":"196V","Voltage - Reverse Standoff (Typ)":"110V","Current - Peak Pulse (10/1000µs)":"2.6A"}},"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":"What is the SMAJ110E3/TR13 peak pulse power rating?","answer":"500W for a 10/1000µs waveform. This is the maximum power the device can dissipate in a single transient pulse at 25°C. Derate for elevated ambient temperature per the power derating curve in the datasheet."},{"question":"Is SMAJ110E3/TR13 obsolete?","answer":"No — it is listed as Active with no announced end-of-life. Production is ongoing."},{"question":"SMAJ110E3/TR13 vs SMAJ110A – what is the difference?","answer":"Both are 500W Zener TVS diodes in DO-214AC with a 110V standoff. The SMAJ110A is a bidirectional device (two Zener diodes back-to-back), while the SMAJ110E3/TR13 is unidirectional. For a single-polarity DC rail, the unidirectional version has a slightly lower clamping voltage because only one junction conducts. For AC lines or bipolar supplies, the bidirectional SMAJ110A is the correct choice."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMAJ110E3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMAJ110E3-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}}