{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMAJ13CA-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SMAJ13CA-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/SMAJ13CA-TR","factsUrl":"https://icboms.com/api/mcp/products/SMAJ13CA-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SMAJ, TRANSIL™ series, Type Zener, Bidirectional TVS Diode, 400W Peak Pulse Power, 13V Reverse Standoff, 27.2V Clamp, DO-214AC (SMA) Surface Mount.","salesMarkdown":"## 400W bidirectional TVS for general-purpose rail protection It provides a single bidirectional channel with a reverse standoff voltage of 13V, a minimum breakdown voltage of 14.4V, and a maximum clamping voltage of 27.2V at the peak pulse current. The device is rated for 400W peak pulse power (10/1000µs waveform) and can handle an 85A peak pulse current (8/20µs waveform). ## Clamping voltage and breakdown — sizing the protection margin The 14.4V minimum breakdown voltage means the diode starts conducting when the rail exceeds that level, while the 27.2V maximum clamp limits the let-through voltage during a surge. For a 13V nominal rail (e.g., a 12V system with tolerance), the 27.2V clamp gives enough headroom to protect downstream components rated for 30V or higher. ## Package and footprint — DO-214AC (SMA) The SMAJ13CA-TR uses the industry-standard DO-214AC (SMA) surface-mount package. This footprint is shared by many TVS diodes across manufacturers, making PCB layout straightforward and second-sourcing easier. No second-source alternate is listed on the official cross-reference, but the SMAJ family is widely second-sourced by other manufacturers in the same DO-214AC footprint.","metaTitle":"STMicroelectronics SMAJ13CA-TR Bidirectional TVS Diode, 400W","metaDescription":"STMicroelectronics SMAJ13CA-TR bidirectional TVS diode, 400W peak pulse power, 13V standoff, 27.2V clamp, DO-214AC SMA.","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":"SMAJ13","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)":"14.4V","Voltage - Clamping (Max) @ Ipp":"27.2V","Voltage - Reverse Standoff (Typ)":"13V","Current - Peak Pulse (10/1000µs)":"85A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cb45a0c551131e855efff64db719fd1e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SMAJ13CA-TR/alternatives.json"},"ai":{"faq":[{"question":"Is SMAJ13CA-TR a bidirectional TVS diode?","answer":"Yes, the SMAJ13CA-TR is a single-channel bidirectional TVS diode. The 'CA' suffix in the ordering code indicates bidirectional clamping, so it protects both positive and negative transients on the same line."},{"question":"What is the peak pulse power of SMAJ13CA-TR?","answer":"The SMAJ13CA-TR is rated for 400W peak pulse power, measured with a 10/1000µs waveform. This rating defines the maximum transient energy the device can absorb in a single pulse."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SMAJ13CA-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SMAJ13CA-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}}