{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ28A-13-F","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"SMAJ28A-13-F","canonicalUrl":"https://icboms.com/diodes-inc/SMAJ28A-13-F","factsUrl":"https://icboms.com/api/mcp/products/SMAJ28A-13-F","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated SMAJ28A-13-F Zener TVS diode, 400W peak pulse power, 28V reverse standoff, 45.4V clamping, unidirectional, DO-214AC SMA package.","salesMarkdown":"## 400W peak pulse — what that means on the bench The SMAJ28A-13-F: That 400 W figure is the product of the clamping voltage and the peak pulse current — at the 45.4 V clamp, the device handles 8.8 A before the junction exceeds its thermal limit. The 28 V reverse standoff voltage (VRWM) means this part sits across a 24 V rail and does not conduct until the transient exceeds 31.1 V breakdown. The 45.4 V clamp is the voltage the downstream circuitry sees during the pulse — if your 24 V bus has a 40 V abs-max on the next IC, this TVS clamps below that threshold. Surface-mount in DO-214AC (SMA), the body is roughly 4.6 mm long by 2.8 mm wide with a 2.0 mm height. The copper pad pattern under the cathode tab is the primary heat path — a 12 mm² pad on the top layer drops the thermal resistance significantly versus the minimum land pattern. The part is RoHS-compliant and halogen-free per Diodes' standard material declaration.","metaTitle":"SMAJ28A-13-F Diodes Inc TVS Diode, 400W, DO-214AC","metaDescription":"SMAJ28A-13-F Diodes Incorporated Zener TVS, 400W peak pulse, 28V standoff, 45.4V clamp, DO-214AC. Active production, 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); 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":"SMAJ28","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMA","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"31.1V","Voltage - Clamping (Max) @ Ipp":"45.4V","Voltage - Reverse Standoff (Typ)":"28V","Current - Peak Pulse (10/1000µs)":"8.8A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0270111b098582f24c0b7d28e81a77ac.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy SMAJ28A-13-F and how is it quoted?","answer":"Sourced through authorized and independent distribution channels. Pricing and lead time are confirmed against your specific BOM quantity at RFQ — no stock-holding claim, quoted to order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diodes-inc/SMAJ28A-13-F","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diodes-inc/SMAJ28A-13-F 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}}