{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC20A R7G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5SMC20A-R7G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5SMC20A-R7G","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC20A%20R7G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor 1.5SMC series Zener TVS diode, 1.5SMC20A R7G, 1500W peak pulse power, 17.1V reverse standoff, 27.7V clamping, unidirectional, DO-214AB (SMC) package, tape and reel.","salesMarkdown":"## Zener TVS diode, 1500 W peak pulse, 17.1 V standoff The 1.5SMC20A R7G: Its 17.1 V reverse standoff voltage means the protected rail can run at 17.1 V DC with negligible leakage; the device begins to avalanche at a minimum of 19 V and clamps at 27.7 V when the surge current reaches 56 A. The 27.7 V clamping ceiling is the voltage the downstream circuitry must survive — a 24 V bus with a 20 % tolerance sits at 28.8 V, so this part gives only 0.9 V of headroom above the clamp. For a 12 V or 15 V rail the margin is comfortable. ## Package and temperature range Housed in a DO-214AB (SMC) surface-mount package, the 1.5SMC20A R7G shares the standard footprint used across the 1.5SMC family. The junction temperature range spans -55°C to 150°C, covering both cold-start and under-hood ambient conditions without derating concerns. The unidirectional channel clamps only positive transients relative to ground — for AC lines or bidirectional protection, a different variant in the same package is needed. Listed as Active by Taiwan Semiconductor, so there is no end-of-life risk for current or new designs.","metaTitle":"1.5SMC20A R7G TVS Diode, 1500W, 17.1V Standoff, DO-214AB","metaDescription":"Taiwan Semiconductor 1.5SMC20A R7G Zener TVS, 1500W peak pulse, 17.1V reverse standoff, 27.7V clamp at 56A. Active, surface-mount DO-214AB. Quoted per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Taiwan Semiconductor Corporation","Type":"Zener","Series":"1.5SMC","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC20","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMC)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"19V","Voltage - Clamping (Max) @ Ipp":"27.7V","Voltage - Reverse Standoff (Typ)":"17.1V","Current - Peak Pulse (10/1000µs)":"56A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC20A%20R7G/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5SMC20A-R7G","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/1.5SMC20A-R7G 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}}