{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMBJ33CA-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SMBJ33CA-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/SMBJ33CA-TR","factsUrl":"https://icboms.com/api/mcp/products/SMBJ33CA-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SMBJ, TRANSIL™, TVS Diode, SMBJ33CA-TR, Zener, 600W Peak Pulse, 33V Standoff, Bidirectional, DO-214AA SMB, Surface Mount, -55°C~150°C.","salesMarkdown":"It is a single-channel bidirectional Zener-type suppressor, meaning it handles overvoltage events of either polarity with one device — useful for AC-coupled lines or where the signal swings both sides of ground. The 33 V reverse standoff voltage (36.7 V minimum breakdown) suits 24 V nominal rails or 28 V aircraft buses, while the 53.3 V clamping limit at 11.8 A peak pulse current (10/1000 µs waveform) keeps downstream components inside their voltage tolerance during a surge. ## Active production — no LTB worry The DO-214AA (SMB) package is a standard JEDEC outline shared across the SMBJ family, so if a future density or voltage variant is needed, the footprint stays the same. For a 24 V rail with occasional load-dump or lightning-coupled transients, the 33 V standoff leaves margin below the clamp voltage, and the 11.8 A peak current capacity covers most secondary-protection scenarios. No power line protection is built in — this is a pure transient suppressor, not a crowbar or a filter.","metaTitle":"STMicroelectronics SMBJ33CA-TR TVS Diode, 600W Bidirectional","metaDescription":"STMicroelectronics SMBJ33CA-TR TRANSIL™ TVS diode, 600W peak pulse power, 33V standoff, bidirectional, DO-214AA SMB package.","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":"SMBJ33","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)":"36.7V","Voltage - Clamping (Max) @ Ipp":"53.3V","Voltage - Reverse Standoff (Typ)":"33V","Current - Peak Pulse (10/1000µs)":"11.8A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/28916e022258112f057e7568b7920d5a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SMBJ33CA-TR/alternatives.json"},"ai":{"faq":[{"question":"Is SMBJ33CA-TR bidirectional?","answer":"Yes, the SMBJ33CA-TR has one bidirectional channel, meaning it clamps transients of either polarity with a single device. This is confirmed by the specification listing a single bidirectional channel."},{"question":"What is the peak pulse power of SMBJ33CA-TR?","answer":"The peak pulse power rating is 600 W, tested with a 10/1000 µs waveform. This is the maximum energy the diode can absorb in a single pulse before failure, and it drives the selection for surge protection on your rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SMBJ33CA-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SMBJ33CA-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}}