{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ24A-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SMAJ24A-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/SMAJ24A-TR","factsUrl":"https://icboms.com/api/mcp/products/SMAJ24A-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SMAJ, TRANSIL™ series, Type Zener, 400W Peak Pulse Power, 24V Reverse Standoff, 26.7V Breakdown (Min), 50V Clamping, 1 Unidirectional Channel, DO-214AC (SMA) Surface Mount, -55°C to 150°C.","salesMarkdown":"The STMicroelectronics SMAJ24A-TR is a unidirectional transient voltage suppression (TVS) diode from the TRANSIL™ series, designed to clamp overvoltage transients on power and signal lines. It is rated for a peak pulse power of 400W (10/1000µs waveform) and offers a reverse standoff voltage of 24V, a minimum breakdown voltage of 26.7V, and a maximum clamping voltage of 50V at the peak pulse current. The 24V reverse standoff voltage is the maximum DC or AC peak voltage the device can withstand without conducting — your protected rail should stay at or below this level. The minimum breakdown voltage of 26.7V is where the diode starts to avalanche; this 2.7V margin above standoff ensures no leakage under normal operation. The clamping voltage of 50V is the maximum voltage the load sees during a surge event — confirm your downstream components can tolerate a 50V transient. For a 24V nominal rail (e.g., 24V industrial sensors or automotive battery lines), this part provides a clean protection window. ## Package and mounting note The DO-214AC (SMA) package is a low-profile, surface-mount outline common for TVS diodes. It is RoHS compliant, which is standard for ST's TRANSIL™ series.","metaTitle":"STMicroelectronics SMAJ24A-TR TVS Diode, 24V Standoff","metaDescription":"SMAJ24A-TR is a 400W unidirectional TVS diode from ST's TRANSIL™ series. 24V reverse standoff, 26.7V min breakdown, 50V clamping. DO-214AC (SMA) package.","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","Capacitance @ Frequency":"-","Supplier Device Package":"SMA (DO-214AC)","Unidirectional Channels":"1","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":"$0.4200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cb45a0c551131e855efff64db719fd1e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SMAJ24A-TR/alternatives.json"},"ai":{"faq":[{"question":"Is SMAJ24A-TR unidirectional or bidirectional?","answer":"The SMAJ24A-TR is a unidirectional TVS diode with one channel. It protects against positive transients relative to ground."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SMAJ24A-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SMAJ24A-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}}