{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC56CH","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5SMC56CH","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5SMC56CH","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC56CH","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor Corporation, 1.5SMC56CH, unidirectional Zener TVS diode, 1500W peak pulse (10/1000µs), 45.4V standoff / 50.4V breakdown / 80.5V clamping, 19A peak pulse, AEC-Q101, DO-214AB surface mount.","salesMarkdown":"## What the clamping ratings mean for the protection circuit The 1.5SMC56CH: The standoff voltage of 45.4V typ means the line sits below the clamping threshold during normal operation — the TVS presents a high impedance until a transient pushes it into breakdown. When a surge fires, the 80.5V maximum clamping voltage at 19A peak pulse (10/1000µs) clamps the overvoltage before it reaches the downstream circuitry — the 1.5kW peak rating governs the transient energy the device can absorb in that pulse window. The minimum breakdown of 50.4V sits above the standoff, so the device never activates during a 45.4V nominal rail — the 5V margin between standoff and breakdown is the design window the line-card engineer sizes the supply tolerance around. ## Automotive grade and thermal envelope AEC-Q101 qualification means this part passed the automotive discrete semiconductor stress battery: humidity, temperature cycling, surge, and mechanical robustness. Even deployed in telecom, the qualification is a proxy for high reliability under variable operating conditions. The part is listed Active — it is in standard production with Taiwan Semiconductor Corporation and carries the standard TR tape-and-reel packaging.","metaTitle":"Taiwan Semiconductor 1.5SMC56CH Zener TVS, 1500W Peak","metaDescription":"1.5SMC56CH unidirectional Zener TVS, 1500W peak pulse, 80.5V clamping, AEC-Q101 qualified for telecom and automotive. Surface mount DO-214AB.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Taiwan Semiconductor Corporation","Type":"Zener","Grade":"Automotive","Series":"1.5SMC","Packaging":"Tape & Reel (TR)","Part Status":"Active","Applications":"Telecom","Mounting Type":"Surface Mount","Qualification":"AEC-Q101","Package / Case":"DO-214AB, SMC","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC56","Operating Temperature":"-55°C ~ 150°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMC)","Voltage - Breakdown (Min)":"50.4V","Voltage - Clamping (Max) @ Ipp":"80.5V","Voltage - Reverse Standoff (Typ)":"45.4V","Current - Peak Pulse (10/1000µs)":"19A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2084","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/06eccb446127f08085d367e58b7cbd8c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC56CH/alternatives.json"},"ai":{"faq":[{"question":"What voltage does 1.5SMC56CH actually clamp at during a surge?","answer":"The maximum clamping voltage is 80.5V at the rated peak pulse current of 19A (10/1000µs waveform). The device breaks down from 50.4V minimum and conducts to clamp the overvoltage at that 80.5V ceiling, protecting the downstream circuit from the surge peak."},{"question":"What does AEC-Q101 qualification mean for a telecom application?","answer":"AEC-Q101 is the automotive discrete semiconductor stress standard — it means the part passed humidity, temperature cycling, surge, and mechanical tests that exceed typical commercial requirements. For a telecom line card, it signals a higher confidence level under variable ambient conditions, though the electrical ratings (45.4V standoff, 80.5V clamping) are what govern the protection design regardless of the qualification badge."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5SMC56CH","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/taiwan-semiconductor-corporation/1.5SMC56CH 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}}