{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ45A-13","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"SMAJ45A-13","canonicalUrl":"https://icboms.com/diodes-inc/SMAJ45A-13","factsUrl":"https://icboms.com/api/mcp/products/SMAJ45A-13","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated SMAJ45A-13 Zener TVS diode, 400W peak pulse, 45V reverse standoff, 72.7V clamping, unidirectional, DO-214AC SMA, Tape & Reel.","salesMarkdown":"## What the 400W peak pulse rating means for your protection budget The SMAJ45A-13: For a 45V rail, the 400W rating translates to a 5.5A peak pulse current capability, which covers most industrial signal-line and low-power DC bus transients from inductive load switching or ESD events. The 72.7V maximum clamping voltage at that 5.5A peak current is the voltage the downstream circuitry actually sees during a surge. A lower clamp voltage means better protection margin for sensitive ICs on the 45V rail — the designer should verify that the protected components have an absolute maximum rating above 72.7V. ## Active lifecycle — no last-time-buy pressure The part is supplied in Tape & Reel packaging (standard for DO-214AC SMA), which is the dominant format for automated SMT assembly. Reel quantity and pricing tiers are confirmed at quote time against the specific BOM volume. ## Package and temperature grade — board-fit and environment check Housed in the DO-214AC (SMA) surface-mount package, the SMAJ45A-13 uses the standard JEDEC footprint for 400W TVS diodes. The operating temperature range spans -55°C to 150°C (junction). This covers the full industrial temperature envelope plus margin into military/aerospace applications. The wide range means the TVS maintains its clamping characteristics across cold-start conditions and hot engine-bay environments alike. ## Sourcing and supply posture As an active, standard-catalog part from Diodes Incorporated, it does not carry the supply constraints of a sole-sourced or allocation-prone line. The 400W SMAJ family is widely second-sourced across multiple manufacturers, providing additional BOM hedge options if needed.","metaTitle":"SMAJ45A-13 TVS Diode, 45V, 400W, DO-214AC, Active","metaDescription":"Diodes Inc SMAJ45A-13 unidirectional TVS, 45V standoff, 72.7V clamp, 400W 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":"Diodes Incorporated","Type":"Zener","Series":"-","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AC, SMA","lifecycle_stage":"eol_hot","Power - Peak Pulse":"400W","Base Product Number":"SMAJ45","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMA","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"50V","Voltage - Clamping (Max) @ Ipp":"72.7V","Voltage - Reverse Standoff (Typ)":"45V","Current - Peak Pulse (10/1000µs)":"5.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a6e414533ed6f0f7c15ae6d19d66ae3c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy SMAJ45A-13 and how is it quoted?","answer":"The SMAJ45A-13 is available to order through independent distribution. Submit an RFQ for current availability and pricing tiers."},{"question":"What package does SMAJ45A-13 come in?","answer":"The supplier device package code is SMA."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diodes-inc/SMAJ45A-13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diodes-inc/SMAJ45A-13 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}}