{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ24CA-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SMAJ24CA-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/SMAJ24CA-TR","factsUrl":"https://icboms.com/api/mcp/products/SMAJ24CA-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SMAJ, TRANSIL™ series, Type Zener, SMAJ24CA-TR, Bidirectional, 1 channel, 400W peak pulse power, 24V reverse standoff, 50V clamping, DO-214AC (SMA) surface mount, -55°C to 150°C operating temperature.","salesMarkdown":"The 24V reverse standoff voltage means the part does not conduct at normal bus levels; the 26.7V minimum breakdown is where clamping begins, and the 50V maximum clamping at 46A peak pulse current sets the upper limit the protected circuitry must survive. ## Bidirectional — one device protects both polarities With a single bidirectional channel, this part clamps positive and negative transients symmetrically. That saves board space versus two unidirectional TVS diodes back-to-back, and it is the natural choice for AC-coupled signal lines, bipolar supplies, or any line where the transient polarity is unknown. ## DO-214AC (SMA) — a standard footprint with wide second-source coverage The SMAJ24CA-TR is supplied in the DO-214AC (SMA) surface-mount package, a widely used outline for 400W TVS diodes. The same footprint is shared across the SMAJ family and many competitors' 400W SMA parts, so PCB layout is straightforward and alternate sourcing is practical if supply tightens. There is no last-time-buy window, no end-of-life notice, and no successor part to track.","metaTitle":"STMicroelectronics SMAJ24CA-TR Bidirectional TVS Diode, 400W","metaDescription":"STMicroelectronics SMAJ24CA-TR bidirectional TVS diode, 400W peak pulse power, 24V standoff, 50V clamping. DO-214AC (SMA) surface mount.","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":"SMAJ24","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMA (DO-214AC)","Voltage - Breakdown (Min)":"26.7V","Voltage - Clamping (Max) @ Ipp":"50V","Voltage - Reverse Standoff (Typ)":"24V","Current - Peak Pulse (10/1000µs)":"46A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cb45a0c551131e855efff64db719fd1e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SMAJ24CA-TR/alternatives.json"},"ai":{"faq":[{"question":"Is SMAJ24CA-TR a bidirectional TVS diode?","answer":"Yes, the SMAJ24CA-TR has one bidirectional channel, meaning it clamps both positive and negative transients symmetrically. It is a Zener-type TVS, not a standard rectifier or regulator."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SMAJ24CA-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SMAJ24CA-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}}