{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC20CA-E3/57T","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC20CA-E3-57T","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC20CA-E3-57T","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC20CA-E3%2F57T","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, 1.5SMC TransZorb® series, bidirectional Zener TVS diode, 1500W peak pulse power, 17.1V standoff, 27.7V clamp, DO-214AB SMC package, surface mount.","salesMarkdown":"## 1500 W bidirectional TVS for 12 V / 15 V rail protection The 1.5SMC20CA-E3/57T: With a 17.1 V reverse standoff voltage, it sits below the 18 V to 20 V regulation ceiling of a typical 15 V rail, so it stays transparent during normal operation and only conducts when a transient exceeds the breakdown threshold. The 27.7 V maximum clamping voltage at 54.2 A peak pulse current tells you the highest voltage the downstream circuitry sees during a surge — a 24 V-rated capacitor or a 30 V MOSFET on that rail has margin, but a 20 V-rated part does not. The 19 V minimum breakdown voltage sets the threshold where the device starts conducting — between 17.1 V (standoff) and 19 V the TVS is off; above 19 V it clamps. This window is tight enough to protect a 15 V rail without nuisance triggering from normal ripple. ## DO-214AB SMC package — board-fit and thermal path Housed in the DO-214AB (SMC) package, the device sits on a standard surface-mount footprint with a large copper pad on the cathode side — the pad area directly sets the junction-to-ambient thermal resistance, so a 1 oz copper pour of at least 300 mm² is recommended to sustain repetitive pulse trains without exceeding the 150 °C junction limit. The -65 °C to +150 °C junction temperature range covers cold-start automotive and outdoor telecom enclosures — the lower bound is well below the -40 °C typical for industrial, and the upper bound leaves margin for self-heating during a burst of surges.","metaTitle":"Vishay 1.5SMC20CA-E3/57T Bidirectional TVS, 1500W, DO-214AB","metaDescription":"Vishay 1.5SMC20CA-E3/57T bidirectional Zener TVS diode, 1500W peak pulse power, 17.1V standoff, 27.7V clamp. Active production, DO-214AB SMC package.","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":"1.5SMC20","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":"$0.6700","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-E3-57T","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/1.5SMC20CA-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}}