{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC75CA-M3/57T","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC75CA-M3-57T","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC75CA-M3-57T","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC75CA-M3%2F57T","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor, 1.5SMC series, bidirectional Zener TVS diode, 1.5 kW peak pulse @ 10/1000 µs, 64.1V standoff / 71.3V breakdown / 104V clamping, DO-214AB SMC, -65°C to 150°C junction.","salesMarkdown":"The 1.5SMC75CA-M3/57T: That shape matches the lightning-surge and inductive-kick transient profile in most industrial and supply-line environments, so a part rated at this waveform handles the actual threat without derating. At the clamping voltage of 104 V with a 14.6 A peak pulse current, the device clamps the overvoltage spike and dissipates the surge energy as heat internally — the downstream IC or regulator sees the clamped level, not the raw transient. For a 64.1 V rail this 1.5 kW part sits between the working voltage and the catastrophic-overvoltage threshold with enough margin for typical IEC 61000-4-5 surge testing. ## The TVS operating window — standoff, breakdown, clamping The reverse standoff of 64.1 V is the maximum working voltage where the TVS stays off and draws only leakage current in normal operation — it sits above the nominal rail, so normal 48 or 60 V supply lines are undisturbed. At 71.3 V the Zener junction breaks down and the TVS begins conducting, clamping the voltage for the downstream circuit. The 104 V clamping ceiling at rated peak current is the voltage the protected load actually sees during a surge event — the difference between that ceiling and the breakdown threshold is the TVS's let-through margin. ## SMC/DO-214AB package and the TransZorb series The 1.5SMC series carries the TransZorb® brand, Vishay's original trademark for their Zener-based TVS construction — this architecture gives lower clamping voltage versus a MOV of equivalent peak rating, at the cost of tighter energy handling per event.","metaTitle":"Vishay 1.5SMC75CA-M3/57T TVS Diode, 1.5 kW","metaDescription":"Vishay 1.5SMC75CA-M3/57T bidirectional TVS diode, 1500W peak pulse, 64.1V standoff / 71.3V breakdown / 104V clamping. Active production, 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":"1.5SMC75","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)":"71.3V","Voltage - Clamping (Max) @ Ipp":"104V","Voltage - Reverse Standoff (Typ)":"64.1V","Current - Peak Pulse (10/1000µs)":"14.6A"}},"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/1.5SMC75CA-M3%2F57T/alternatives.json"},"ai":{"faq":[{"question":"What does the 64.1 V standoff voltage mean for my rail?","answer":"The reverse standoff of 64.1 V is the maximum continuous working voltage — the TVS stays off and draws only leakage current up to that level. For a 48 V nominal supply the 64.1 V standoff gives roughly 33% headroom, which is the normal TVS selection margin for supply-line protection."},{"question":"What is the closest pin-compatible alternative in the 1.5SMC family?","answer":"The 1.5SMC series covers multiple voltage breakpoints from roughly 6.8 V upward using the same DO-214AB footprint. The closest parametric match shares the 64.1 V standoff rating and 1.5 kW peak rating — the base product number 1.5SMC75 confirms the voltage class, and the CA suffix denotes bidirectional polarity. Cross-reference alternatives are confirmed at RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC75CA-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/1.5SMC75CA-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}}