{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ170","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ170","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ170","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ170","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor, Zener type TVS diode, 1.5SMCJ170, unidirectional, 1500W peak pulse, 170V standoff, 189V min breakdown, 304V clamping @ 4.9A, -50°C to 150°C junction, surface mount, DO-214AB SMC package, Strip.","salesMarkdown":"The 1.5SMCJ170 is a unidirectional Zener-type TVS diode — the clamping element that shorts a voltage spike to ground before it reaches downstream circuitry. The 170 V reverse standoff is the maximum working voltage the line can sit at unpowered; any transient that drives the line above 189 V triggers avalanche breakdown, and the diode clamps the peak to 304 V while dissipating the surge energy across its junction. The 1.5 kW peak pulse rating (10/1000 µs waveform) tells you the surge energy budget it clears in a single event — this is the figure that gates the MOV or gas-tube alternative at this power class. ## Peak pulse handling and clamping action In a 48 V or 72 V rail protection scheme, a 1 kV surge event produces a clamping current well within this rating — the downstream IC or fet sees a 304 V clamped pulse at microsecond scale, not the raw surge. Power line protection is listed as No — this diode is not rated as a dedicated mains-/ protector; it is suited for secondary protection on low-voltage rails, signal lines, and dc power rails where the standoff voltage aligns with the working voltage of the protected circuit. ## SMC package and board assembly fit The DO-214AB (SMC) package with surface-mount termination is the standard pick-and-place footprint for 1.5 kW-class TVS diodes. The cathode band marks the unidirectional polarity — orient it cathode-facing the line side. The Strip packaging option indicates cut-tape or loose parts from a reel; reel quantities are standard at the distributor, but Strip packaging is typically used for prototypes and small runs rather than full-reel consumption.","metaTitle":"Diotec 1.5SMCJ170 TVS Diode, 170V Standoff, 1.5kW","metaDescription":"Diotec 1.5SMCJ170 unidirectional TVS diode, DO-214AB SMC package, 1500W peak pulse, 170V standoff / 189V breakdown / 304V clamping. Sourced to order on RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Diotec Semiconductor","Type":"Zener","Series":"-","Package":"Strip","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Operating Temperature":"-50°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMC/DO-214AB","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"189V","Voltage - Clamping (Max) @ Ipp":"304V","Voltage - Reverse Standoff (Typ)":"170V","Current - Peak Pulse (10/1000µs)":"4.9A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9158","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3fb0502b23c3703cafef426b7b2bf7e5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMCJ170/alternatives.json"},"ai":{"faq":[{"question":"Where can I source 1.5SMCJ170 and what are the typical lead times?","answer":"1.5SMCJ170 is sourced to order against your BOM quantity through independent distribution. Availability and current lead times are confirmed at quote time — the Diotec brand is supported through franchised and independent channels, so a spot check across both will give you the tightest delivery window."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ170","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diotec-semiconductor/1.5SMCJ170 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}}