{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC18A-M3/57T","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC18A-M3-57T","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC18A-M3-57T","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC18A-M3%2F57T","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division 1.5SMC, TransZorb® series, Zener TVS diode, 1500W peak pulse, 15.3V reverse standoff, 25.2V clamp, unidirectional, DO-214AB (SMC) surface mount, Tape & Reel.","salesMarkdown":"## What the 1500W rating means on your rail The 1.5SMC18A-M3/57T: That 59.5A peak current at the clamping voltage is the real protection envelope — if your fault source can deliver more than that, the TVS will fail short and you'll see the scorch mark on the board. ## Package and temperature — where it survives Housed in a DO-214AB (SMC) surface-mount package, the same footprint as the SMCJ series, so a rework station with a hot-air pencil set to 260°C for 10 seconds per joint will swap it cleanly. The operating junction temperature range spans -65°C to 150°C, which covers engine-bay ambient and industrial cabinet heat soak without derating the pulse power — the 1500W rating holds across that entire band. It is a single unidirectional channel, so it protects one DC rail polarity; for AC lines or bidirectional rails you would need two back-to-back or a bidirectional part.","metaTitle":"Vishay 1.5SMC18A-M3/57T TVS, 1500W, 15.3V Standoff, DO-214AB","metaDescription":"Vishay 1.5SMC18A-M3/57T Zener TVS diode, 1500W peak pulse, 15.3V reverse standoff, 25.2V clamp. Active production. Sourced and quoted to order.","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)","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":"1.5SMC18","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)":"17.1V","Voltage - Clamping (Max) @ Ipp":"25.2V","Voltage - Reverse Standoff (Typ)":"15.3V","Current - Peak Pulse (10/1000µs)":"59.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3333","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 1.5SMC18A-M3/57T?","answer":"Any 1500W TVS in the DO-214AB package with a 15.3V standoff and 25.2V clamp voltage is a functional equivalent — parts like the SMCJ18A from other brands share the same footprint and electrical window, though the surge current rating may differ slightly."},{"question":"What compliance documentation does Vishay provide for this part?","answer":"The 1.5SMC18A-M3/57T is RoHS compliant and lead-free per the M3 suffix; Vishay publishes a datasheet with full electrical characteristics, pulse derating curves, and package dimensions."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC18A-M3-57T","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/1.5SMC18A-M3-57T 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}}