{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC170A-E3/57T","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC170A-E3-57T","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC170A-E3-57T","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC170A-E3%2F57T","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, TransZorb® series, TVS Zener diode, 1.5SMC170A-/57T, 1500W peak pulse power, 145V standoff, DO-214AB (SMC) surface mount package.","salesMarkdown":"## Surge protection for 145 V rails — the Vishay TransZorb® 1.5SMC170A-E3/57T Its 162 V minimum breakdown voltage and 234 V maximum clamping at 6.4 A (10/1000 µs waveform) define the protection window: the rail sees no voltage above 234 V during a surge event. Housed in the DO-214AB (SMC) surface-mount package, this unidirectional device protects a single line. The 1500 W rating at 10/1000 µs is the standard industrial surge benchmark — it covers most IEC 61000-4-5 surge levels for equipment connected to 120/240 VAC mains after the rectifier. ## Where the 1500 W rating matters in the protection chain For shorter pulses (8/20 µs) the diode can handle much higher peak current, but the 10/1000 µs rating is the one that governs most AC-line transient protection designs. Operating temperature spans -65°C to 150°C junction, making it suitable for outdoor enclosures, engine compartments, or industrial cabinets where ambient heat plus self-heating from repetitive surges must be budgeted. No power line protection feature (internal crowbar or foldback) — this is a straight clamping diode. The 145 V standoff means it leaks negligible current below that voltage and only starts conducting significantly above 162 V.","metaTitle":"Vishay 1.5SMC170A-E3/57T TVS Diode, 1500W, DO-214AB","metaDescription":"Vishay 1.5SMC170A-E3/57T TransZorb® TVS, 1500W peak pulse, 145V standoff, 234V clamp. Active production, DO-214AB SMC package. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"1.5SMC, TransZorb®","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC170","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMCJ)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"162V","Voltage - Clamping (Max) @ Ipp":"234V","Voltage - Reverse Standoff (Typ)":"145V","Current - Peak Pulse (10/1000µs)":"6.4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6200","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC170A-E3-57T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC170A-E3-57T 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}}