{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMBJ170E3/TR13","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SMBJ170E3-TR13","canonicalUrl":"https://icboms.com/microchip/SMBJ170E3-TR13","factsUrl":"https://icboms.com/api/mcp/products/SMBJ170E3%2FTR13","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SMBJ170E3/TR13, Zener TVS, 170V reverse standoff, 304V clamp, 600W peak pulse, DO-214AA SMB, Tape & Reel","salesMarkdown":"When a transient exceeds 189V breakdown, it clamps at 304V max and shunts up to 2A of surge current (10/1000µs waveform). That 600W peak pulse rating tells you the energy it can absorb before the junction gives way; derate it for ambient above 25°C per the datasheet curve. ## Clamping voltage and the rail it saves The 304V clamp at 2A is the ceiling the protected rail sees during a surge. If your downstream device has an absolute max of, say, 300V, this part will not hold — you need a lower-voltage TVS or a multi-stage clamp. The 189V minimum breakdown means the part starts conducting well before the clamp, so a 170V rail with 10% tolerance is safe; a 180V rail risks nuisance triggering. ## Active production — no last-time-buy rush Microchip lists the SMBJ170E3/TR13 as Active. ## Temperature range and bench reality That 150°C ceiling is the die temperature, not the case — in a 85°C ambient with no airflow, the junction will run hotter, and the 600W peak pulse derates to roughly 400W at 100°C. For a board-level repair bench, the scorch mark on a failed TVS is usually at the package body, not the junction; if the SMBJ170E3/TR13 is the part that actually died, check the upstream series resistance before swapping.","metaTitle":"SMBJ170E3/TR13 TVS Diode - 170V Standoff, 600W","metaDescription":"SMBJ170E3/TR13 Zener TVS, 170V reverse standoff, 304V clamp, 600W peak pulse, DO-214AA SMB. Active production. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Microchip Technology","Type":"Zener","Series":"-","Package":"Tape & Reel (TR)","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":"SMBJ170","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMBJ (DO-214AA)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"189V","Voltage - Clamping (Max) @ Ipp":"304V","Voltage - Reverse Standoff (Typ)":"170V","Current - Peak Pulse (10/1000µs)":"2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2850","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f566c62ad8bf6be9ecf452f6999d0b7a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to SMBJ170E3/TR13?","answer":"Any SMBJ-series TVS in the DO-214AA package with the same footprint is a direct mechanical swap. For a different voltage rating, match the reverse standoff to your rail; the SMBJ170E3/TR13 is the 170V variant. No official second-source cross-reference is listed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SMBJ170E3-TR13","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SMBJ170E3-TR13 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}}