{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ12AQ-13-F","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"SMAJ12AQ-13-F","canonicalUrl":"https://icboms.com/diodes-inc/SMAJ12AQ-13-F","factsUrl":"https://icboms.com/api/mcp/products/SMAJ12AQ-13-F","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated SMAJ12AQ-13-F, Automotive Grade TVS Zener Diode, 400W Peak Pulse Power, 12V Reverse Standoff, 1 Channel, Unidirectional, DO-214AC (SMA) Package, Tape & Reel.","salesMarkdown":"## Active-lifecycle TVS for automotive BOMs The SMAJ12AQ-13-F: That makes it a drop-in for engine-bay or chassis-domain ECUs where the ambient can hit 125°C. ## Clamping performance at the 12V rail With a 12V reverse standoff voltage and a 13.3V minimum breakdown, this TVS starts conducting just above the nominal 12V supply — it clamps transients before they reach the 19.9V maximum clamping voltage. The 20.1A peak pulse current rating at the 10/1000µs waveform tells you it can absorb a 400W pulse without the junction exceeding its thermal limit. Unidirectional design means it protects a single polarity rail — ground the anode and connect the cathode to the 12V line. The DO-214AC (SMA) footprint is a standard surface-mount package; the pick-and-place machine handles it without special tooling, and the MSL rating is typically Level 1 for this package family, so no pre-bake is needed before reflow. ## Where it fits in the panel This TVS sits on the PCB right at the power input connector or after the reverse-polarity protection diode. Its job is to shunt ESD strikes and load-dump surges to ground before they reach the downstream DC-DC converter or microcontroller. The -55°C to 150°C junction temperature range covers both cold-crank and under-hood heat soak.","metaTitle":"SMAJ12AQ-13-F Diodes Inc TVS Diode, 400W, 12V, DO-214AC","metaDescription":"Active-production SMAJ12AQ-13-F from Diodes Inc. 400W peak pulse power, 12V reverse standoff, AEC-Q101 qualified. Available to order; RFQ for current pricing.","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":"SMAJ12","Operating Temperature":"-55°C ~ 150°C (TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMA","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"13.3V","Voltage - Clamping (Max) @ Ipp":"19.9V","Voltage - Reverse Standoff (Typ)":"12V","Current - Peak Pulse (10/1000µs)":"20.1A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/34f8b69d3d41ce3a7e5d6d3f2b7ec8e2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy SMAJ12AQ-13-F and get a price?","answer":"The SMAJ12AQ-13-F is available through independent distribution channels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diodes-inc/SMAJ12AQ-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/SMAJ12AQ-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}}