{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMBJ70A-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SMBJ70A-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/SMBJ70A-TR","factsUrl":"https://icboms.com/api/mcp/products/SMBJ70A-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SMBJ70A-TR, TRANSIL™ series, unidirectional TVS diode, 600W peak pulse power, 70V reverse standoff, 77.8V breakdown, 113V clamping, DO-214AA SMB package, surface mount, -55°C to 150°C.","salesMarkdown":"## What this TVS protects and how it clamps The STMicroelectronics SMBJ70A-TR is a unidirectional transient-voltage-suppression diode from the TRANSIL™ family, built on Zener technology. It clamps voltage spikes on a 70V DC rail — the reverse standoff voltage of 70V means it stays out of conduction during normal operation. ## Package and footprint — DO-214AA SMB Housed in the DO-214AA (SMB) package, this is a surface-mount device with a standard two-pin footprint. The SMB body is smaller than the SMC package used for higher-power TVS diodes, so it fits tighter layouts but still handles the 600W rating.","metaTitle":"SMBJ70A-TR TVS Diode, 600W, 70V Standoff, DO-214AA","metaDescription":"STMicroelectronics SMBJ70A-TR unidirectional TVS diode, 600W peak pulse power, 70V reverse standoff, 77.8V breakdown, DO-214AA SMB. Active, available to order.","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":"SMBJ70","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMB (DO-214AA)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"77.8V","Voltage - Clamping (Max) @ Ipp":"113V","Voltage - Reverse Standoff (Typ)":"70V","Current - Peak Pulse (10/1000µs)":"5.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/28916e022258112f057e7568b7920d5a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SMBJ70A-TR/alternatives.json"},"ai":{"faq":[{"question":"Is SMBJ70A-TR unidirectional?","answer":"Yes, the SMBJ70A-TR is a unidirectional TVS diode, with one unidirectional channel. It protects a single polarity rail and will not clamp negative transients."},{"question":"What is the closest pin-compatible alternative to SMBJ70A-TR?","answer":"Within the same SMBJ family, the SMBJ70A (without the -TR suffix) is functionally identical — same 70V standoff, same 600W rating, same DO-214AA package. The -TR suffix on this part simply denotes Tape & Reel packaging; the bare SMBJ70A may ship in tube or bulk. For a drop-in BOM replacement, any SMBJ70A variant in the same package works."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SMBJ70A-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SMBJ70A-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}}