{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ30A-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SMAJ30A-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/SMAJ30A-TR","factsUrl":"https://icboms.com/api/mcp/products/SMAJ30A-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SMAJ30A-TR, TRANSIL™ TVS, Zener type, 30V reverse standoff, 33.3V breakdown min, 64.3V clamp @ 36A, 400W peak pulse, unidirectional, DO-214AC SMA, surface mount, -55°C~150°C.","salesMarkdown":"## 30V rail clamp — the protection window Its 30V reverse standoff voltage sits above the rail's steady-state tolerance, while the 33.3V minimum breakdown and 64.3V maximum clamp at 36A define the overvoltage window — the rail sees no conduction below 33.3V, and the clamp holds the transient below 64.3V even at the peak pulse current. ## 400W peak pulse — energy handling in the DO-214AC footprint The 36A peak pulse current at the 8/20µs waveform gives a realistic surge rating for industrial and telecom transient events. STMicroelectronics lists the SMAJ30A-TR as Active.","metaTitle":"STMicroelectronics SMAJ30A-TR TRANSIL TVS, 30V Standoff","metaDescription":"SMAJ30A-TR Zener TVS diode from STMicroelectronics, 30V reverse standoff, 33.3V breakdown, 64.3V clamp at 36A. 400W peak pulse, DO-214AC SMA.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"STMicroelectronics","Type":"Zener","Series":"SMAJ, TRANSIL™","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AC, SMA","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"400W","Base Product Number":"SMAJ30","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMA (DO-214AC)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"33.3V","Voltage - Clamping (Max) @ Ipp":"64.3V","Voltage - Reverse Standoff (Typ)":"30V","Current - Peak Pulse (10/1000µs)":"36A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cb45a0c551131e855efff64db719fd1e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SMAJ30A-TR/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy SMAJ30A-TR and how is it quoted?","answer":"Submit an RFQ for current availability and pricing — no stock-holding claim, no price figure on this page."},{"question":"Can SMAJ30A-TR be used for 24V overvoltage protection?","answer":"Yes. The 30V reverse standoff voltage clears a 24V rail with margin, and the 33.3V minimum breakdown ensures no leakage at nominal rail voltage. The 64.3V clamp protects downstream components rated above that level."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SMAJ30A-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SMAJ30A-TR 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}}