{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ120AE3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMAJ120AE3-TR13","canonicalUrl":"https://icboms.com/microchip/SMAJ120AE3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ120AE3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMAJ120AE3/TR13, Zener TVS diode, 120V reverse standoff, 500W peak pulse power, unidirectional, DO-214AC (SMA) surface-mount package.","salesMarkdown":"## 120V rail clamp in a DO-214AC footprint It clamps at 193V maximum while handling 500W peak pulse power — enough for general-purpose surge protection on industrial control, telecom, or power-supply secondary rails. The DO-214AC (SMA) package is a common surface-mount footprint; the copper pad area under the cathode tab sets the junction-to-ambient thermal resistance, so the PCB layout directly affects derating at elevated temperatures. ## Clamping voltage and pulse current With a breakdown voltage minimum of 133V and a clamping ceiling of 193V at 2.6A peak pulse current (, 10/1000µs waveform), this part leaves a 73V window between the 120V rail and the clamp — enough margin for most 120V-rated downstream components without sacrificing protection speed. The unidirectional configuration means it conducts only in one polarity; for AC or bidirectional rails, two devices or a bidirectional TVS would be needed.","metaTitle":"SMAJ120AE3/TR13 Zener TVS Diode – 120V, 500W, DO-214AC","metaDescription":"SMAJ120AE3/TR13 Zener TVS diode, 120V reverse standoff, 500W peak pulse, DO-214AC (SMA). 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":"SMAJ120","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)":"133V","Voltage - Clamping (Max) @ Ipp":"193V","Voltage - Reverse Standoff (Typ)":"120V","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":"Does SMAJ120AE3/TR13 work as a replacement for SMAJ120A?","answer":"The base product number is SMAJ120, and the 'AE3/TR13' suffix indicates the lead-finish and packaging variant. If your BOM calls for SMAJ120A, confirm the suffix matches your assembly requirements — the electrical specs (120V standoff, 500W peak pulse) are identical across the SMAJ120 family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMAJ120AE3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMAJ120AE3-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}}