{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ28CAQ-13-F","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"SMAJ28CAQ-13-F","canonicalUrl":"https://icboms.com/diodes-inc/SMAJ28CAQ-13-F","factsUrl":"https://icboms.com/api/mcp/products/SMAJ28CAQ-13-F","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated SMAJ28CAQ-13-F, Zener TVS diode, 28V reverse standoff, 400W peak pulse, bidirectional, DO-214AC SMA package, AEC-Q101 automotive grade.","salesMarkdown":"## 28V bidirectional TVS, AEC-Q101, DO-214AC The SMAJ28CAQ-13-F is a 28V bidirectional Zener TVS from Diodes Incorporated in the DO-214AC (SMA) surface-mount package. It clamps transients to 45.4V max at 8.8A peak pulse current (10/1000µs waveform) and handles 400W peak pulse power — sized for protecting 24V automotive rails from load-dump and inductive kickback events. The -55°C to 150°C junction temperature range covers the full automotive ambient envelope with margin for self-heating during a surge event. ## Clamping and surge rating for 24V rails Reverse standoff voltage is 28V — the TVS draws negligible leakage below this level, so it sits across a 24V nominal bus without loading it. Breakdown occurs at 31.1V min, clamping at 45.4V max with the 8.8A peak pulse current. The 400W peak pulse power rating at 10/1000µs is the standard telecom surge waveform; for shorter automotive transients (ISO 7637-2 pulses 1, 2a, 3a/b) the device handles higher peak currents because the energy per pulse is lower. ## Active lifecycle, automotive-grade sourcing The DO-214AC (SMA) footprint is shared across the entire SMAJ family — the same PCB land pattern works for any voltage variant in this series. Tape & Reel packaging is the standard 13-inch reel for automated pick-and-place assembly.","metaTitle":"SMAJ28CAQ-13-F Diodes Inc TVS, 28V Bidirectional, DO-214AC","metaDescription":"SMAJ28CAQ-13-F Zener TVS diode, 28V reverse standoff, 400W peak pulse, AEC-Q101 automotive grade. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Diodes Incorporated","Type":"Zener","Grade":"Automotive","Series":"-","Package":"Tape & Reel (TR) Cut Tape (CT)","Applications":"-","Mounting Type":"Surface Mount","Qualification":"AEC-Q101","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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMA","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":"$0.4200","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/34f8b69d3d41ce3a7e5d6d3f2b7ec8e2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What automotive qualification does SMAJ28CAQ-13-F carry?","answer":"It is AEC-Q101 qualified, the automotive-grade discrete semiconductor standard. The operating junction temperature range is -55°C to 150°C, covering under-hood and cabin electronics thermal profiles."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diodes-inc/SMAJ28CAQ-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/SMAJ28CAQ-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}}