{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC20CA-E3/9AT","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC20CA-E3-9AT","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC20CA-E3-9AT","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC20CA-E3%2F9AT","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor, 1.5SMC TransZorb® series, bidirectional Zener TVS diode, 1500W peak pulse power, DO-214AB SMC package, Tape & Reel.","salesMarkdown":"## What the 1500W pulse rating means on the bench The 1.5SMC20CA-E3/9AT: That 1500W figure tells you how much energy it can shunt before the junction gives up — a 54.2A peak pulse current gets clamped to 27.7V max, which is the voltage the protected IC actually sees during the event. When you find a scorched TVS on a board, the question is whether the clamping voltage stayed below the downstream part's abs-max, or the surge walked right through. The 17.1V reverse standoff means the diode sits on a 12V or 15V rail without leaking appreciably — the breakdown threshold is 19V minimum, so it stays out of the circuit until a transient pushes it over. Bidirectional construction (one channel) means one part protects both polarities, which halves the component count on a bipolar signal line like RS-485 or CAN bus. ## Package and reflow reality Housed in a DO-214AB (SMC) package with the supplier device package designated DO-214AB (SMCJ). The footprint is standard for this power class — the large tab on the bottom side carries the heat into the board copper, so the PCB pad area directly sets the thermal impedance during the pulse. Surface-mount only; the Tape & Reel packaging suits automated pick-and-place, and the -65°C to 150°C operating range means it survives wave solder and reflow without cracking the junction.","metaTitle":"Vishay 1.5SMC20CA-E3/9AT Bidirectional TVS, 1500W, DO-214AB","metaDescription":"Vishay 1.5SMC20CA-E3/9AT bidirectional Zener TVS diode, 1500W peak pulse power, 27.7V clamping, DO-214AB SMC package. Active production, sourced 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":"1.5SMC20","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMCJ)","Voltage - Breakdown (Min)":"19V","Voltage - Clamping (Max) @ Ipp":"27.7V","Voltage - Reverse Standoff (Typ)":"17.1V","Current - Peak Pulse (10/1000µs)":"54.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2462","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/1.5SMC20CA-E3-9AT","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/1.5SMC20CA-E3-9AT 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}}