{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC20CA-M3/57T","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC20CA-M3-57T","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC20CA-M3-57T","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC20CA-M3%2F57T","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, 1.5SMC TransZorb® series, bidirectional TVS diode, 1500W peak pulse power, 17.1V standoff, 27.7V clamp, DO-214AB (SMC) package, Tape & Reel.","salesMarkdown":"## Transient protection for a single line — both polarities The 1.5SMC20CA-M3/57T: A single device clamps a positive or negative transient on one line, which simplifies board layout for AC signal lines or bipolar DC rails where the polarity of the surge is unknown. Breakdown starts at 19 V minimum, and the clamping voltage is held to 27.7 V at the rated peak pulse current of 54.2 A. This gives a protection window that keeps the downstream circuitry below its absolute-maximum rating for a 24 V nominal bus. ## 1500 W pulse — what it means for a 24 V rail The 1500 W rating is measured with a 10/1000 µs exponential waveform — the standard for telecom and industrial surge testing per IEC 61000-4-5. For a shorter pulse like 8/20 µs (common in ESD or lightning surge), the peak power capability is higher, but the 1500 W figure is the conservative design-in number for the 1 ms pulse width. The base product number 1.5SMC20 covers both unidirectional and bidirectional variants — the 'CA' suffix marks this as the bidirectional version. For a unidirectional requirement, the 1.5SMC20A (without the 'C') is the sibling. The package is the same DO-214AB, so the PCB layout is identical.","metaTitle":"Vishay 1.5SMC20CA-M3/57T TVS Diode, 1500W Bidirectional","metaDescription":"Vishay 1.5SMC20CA-M3/57T bidirectional TVS diode, 1500W peak pulse power, 17.1V standoff, 27.7V clamp. Active production. Sourced to order against RFQ.","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":"$0.4447","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC20CA-M3%2F57T/alternatives.json"},"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-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/1.5SMC20CA-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}}