{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMBJ48CA-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SMBJ48CA-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/SMBJ48CA-TR","factsUrl":"https://icboms.com/api/mcp/products/SMBJ48CA-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SMBJ, TRANSIL™ series, TVS diode, bidirectional, 1 channel, 48V reverse standoff, 53.3V breakdown min, 77.4V clamping, 600W peak pulse power, DO-214AA SMB surface mount, -55°C ~ 150°C.","salesMarkdown":"## 48 V rail protection — where the ratings land Its 48 V reverse standoff voltage means it will not conduct leakage current under normal 48 V operation, while the 53.3 V minimum breakdown voltage defines the threshold where avalanche conduction starts. At the rated peak pulse current of 8.1 A (10/1000 µs waveform) the clamping voltage reaches 77.4 V maximum, which is the hard limit the protected circuit must survive. This is a single-channel bidirectional device, meaning it clamps equally in both directions. The part comes in the standard DO-214AA (SMB) surface-mount package, a widely used footprint compatible with automated assembly. The wide temperature margin also means the device maintains its clamping characteristics across the full military temperature range.","metaTitle":"STMicroelectronics SMBJ48CA-TR TVS Diode, 600W Bidirectional","metaDescription":"STMicroelectronics SMBJ48CA-TR bidirectional TVS diode, 48V standoff, 600W peak pulse power, DO-214AA SMB package. -55°C to 150°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"STMicroelectronics","Type":"Zener","Series":"SMBJ, TRANSIL™","Package":"Tape & Reel (TR) Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AA, SMB","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"600W","Base Product Number":"SMBJ48","Operating Temperature":"-55°C ~ 150°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMB (DO-214AA)","Voltage - Breakdown (Min)":"53.3V","Voltage - Clamping (Max) @ Ipp":"77.4V","Voltage - Reverse Standoff (Typ)":"48V","Current - Peak Pulse (10/1000µs)":"8.1A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/28916e022258112f057e7568b7920d5a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SMBJ48CA-TR/alternatives.json"},"ai":{"faq":[{"question":"Is SMBJ48CA-TR bidirectional?","answer":"Yes, the SMBJ48CA-TR is a bidirectional TVS diode with one channel, clamping transients of either polarity."},{"question":"What is the peak pulse power of SMBJ48CA-TR?","answer":"The peak pulse power rating is 600 W for a 10/1000 µs exponential waveform. This defines the maximum transient energy the device can absorb without damage."},{"question":"Is SMBJ48CA-TR equivalent to SMBJ48A?","answer":"The SMBJ48A is a unidirectional version of the same 48 V standoff device. The SMBJ48CA-TR is bidirectional, so they are not drop-in equivalents — the unidirectional part has a single anode/cathode orientation, while the bidirectional part has no polarity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SMBJ48CA-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SMBJ48CA-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}}