{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ51AE3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMAJ51AE3-TR13","canonicalUrl":"https://icboms.com/microchip/SMAJ51AE3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ51AE3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMAJ51AE3/TR13, Zener TVS diode, unidirectional, 51 V reverse standoff, 56.7 V breakdown min, 82.4 V clamping, 500 W peak pulse, DO-214AC (SMA) surface mount, -65 to 150 °C junction temperature.","salesMarkdown":"## 51 V rail protection in a DO-214AC body The reverse standoff voltage of 51 V means it stays off the bus under normal conditions, and the minimum breakdown voltage of 56.7 V guarantees avalanche onset before the rail sees damaging overvoltage. Peak pulse power is rated at 500 W for the standard 10/1000 µs waveform — enough to handle common industrial surge events on a 48 V or 51 V supply. ## Clamping voltage and surge current — the real stress numbers That 82.4 V ceiling tells you what the downstream silicon sees during a strike — if your 51 V rail feeds a converter rated for 80 V absolute max, this diode leaves no margin; you need a lower-clamp part or a secondary protection stage. ## Active production, surface-mount reel RoHS compliance is standard for the suffix; no lead-free transition risk. The DO-214AC footprint is shared by many 500 W TVS diodes from other vendors, but the breakdown and clamping thresholds are specific to the SMAJ51 family. If you are replacing a competitor's 51 V TVS in the same package, confirm the breakdown min matches your rail tolerance.","metaTitle":"SMAJ51AE3/TR13 TVS Diode – 51 V Standoff, 500 W, DO-214AC","metaDescription":"SMAJ51AE3/TR13 Zener TVS diode, 51 V reverse standoff, 56.7 V breakdown min, 82.4 V clamping, 500 W peak pulse, DO-214AC SMA package.","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":"SMAJ51","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)":"56.7V","Voltage - Clamping (Max) @ Ipp":"82.4V","Voltage - Reverse Standoff (Typ)":"51V","Current - Peak Pulse (10/1000µs)":"6.1A"}},"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 peak pulse power rating and package of SMAJ51AE3/TR13?","answer":"Peak pulse power is 500 W for a 10/1000 µs waveform. Package is DO-214AC (SMA) surface mount, supplied in Tape & Reel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMAJ51AE3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMAJ51AE3-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}}