{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMCJ85CA-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SMCJ85CA-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/SMCJ85CA-TR","factsUrl":"https://icboms.com/api/mcp/products/SMCJ85CA-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SMCJ85CA-TR, TRANSIL™ series, bidirectional TVS diode, 1500W peak pulse power, 85V reverse standoff, 94V breakdown, 178V clamping, DO-214AB (SMC) package, surface mount, -55°C to 150°C.","salesMarkdown":"## 1500 W of surge protection in a single bidirectional device This part is designed for general-purpose surge protection on AC or bipolar signal lines where polarity is not fixed — the bidirectional construction means you do not need to worry about orientation during assembly or in-circuit. For a 48 V or 60 V nominal bus with transients that could hit 150 V, this part leaves enough margin below the clamping ceiling to keep downstream silicon safe. ## Package and mounting — DO-214AB (SMC) Housed in the DO-214AB (SMC) package, this is a surface-mount device with a standard footprint shared across the SMCJ family. The SMC package is rated for the full 1500 W pulse without requiring a heatsink, relying on the PCB copper area for thermal dissipation.","metaTitle":"SMCJ85CA-TR STMicroelectronics TVS Diode","metaDescription":"SMCJ85CA-TR is a 1500W bidirectional TVS diode from STMicroelectronics, 85V standoff, 94V breakdown, 178V clamping. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"STMicroelectronics","Type":"Zener","Series":"SMCJ, TRANSIL™","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"SMCJ85","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMC","Voltage - Breakdown (Min)":"94V","Voltage - Clamping (Max) @ Ipp":"178V","Voltage - Reverse Standoff (Typ)":"85V","Current - Peak Pulse (10/1000µs)":"56A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/afa32e66ad58d9d3b67a92acb79ea14b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SMCJ85CA-TR/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy SMCJ85CA-TR online?","answer":"SMCJ85CA-TR is available to order through independent distribution. Submit an RFQ to confirm current availability and pricing for your required quantity."},{"question":"Is SMCJ85CA-TR bidirectional?","answer":"Yes, the SMCJ85CA-TR is a bidirectional TVS diode. It has one bidirectional channel, meaning it clamps transients of either polarity without needing to orient the part on the board."},{"question":"What is the peak pulse power of SMCJ85CA-TR?","answer":"The SMCJ85CA-TR is rated for 1500 W peak pulse power, measured with a 10/1000 µs waveform. This is the maximum surge energy it can absorb in a single pulse before damage."},{"question":"What is the difference between SMCJ85CA-TR and SMCJ85A-TR?","answer":"The SMCJ85CA-TR is the bidirectional version; the SMCJ85A-TR is the unidirectional version. Both share the same 85 V standoff, 94 V breakdown, and 178 V clamping ratings, but the unidirectional variant has a single polarity and must be oriented correctly in a DC circuit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SMCJ85CA-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SMCJ85CA-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}}