{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC9.1A R7G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5SMC9.1A-R7G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5SMC9.1A-R7G","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC9.1A%20R7G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor 1.5SMC9.1A R7G unidirectional TVS Zener, DO-214AB (SMC), 1500W peak pulse (10/1000µs), 7.78V reverse standoff, 13.4V clamping @ 117A, -55°C to 150°C junction, Tape & Reel.","salesMarkdown":"## 1500W peak pulse at 10/1000µs — what the headline rating means The 1.5SMC9.1A R7G ships on Tape & Reel, rated for surface-mount assembly. ## Standoff, clamping, and peak pulse current — the three numbers that govern TVS selection Reverse standoff of 7.78 V defines the maximum voltage the TVS sees during normal operation without conducting. Clamping voltage of 13.4 V at peak pulse current of 117 A is what the downstream circuit is protected to during a fault event — the TVS absorbs the surge energy and clamps the voltage at that level, so the protected rail sees 13.4 V, not the raw transient. These two numbers — standoff and clamping — define the protection window and drive the selection decision for any sensitive rail at this voltage band. ## Where a 1.5 kW TVS in this voltage band protects the rail General-purpose applications across industrial control, consumer electronics, and telecom hardware all use sensitive rails in the 5–12 V band that need a TVS to clamp transients. Minimum breakdown of 8.65 V gives a tight 8% window between breakdown floor and nominal standoff (7.78 V), which is expected for a Zener-based TVS in this series.","metaTitle":"1.5SMC9.1A R7G TVS Diode, 1500W, 7.78V Standoff","metaDescription":"Taiwan Semiconductor 1.5SMC9.1A R7G unidirectional TVS Zener in DO-214AB (SMC), 1500W peak pulse, 7.78V standoff, 13.4V clamping. Active — quoted to order.","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":"1.5SMC9.1","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)":"8.65V","Voltage - Clamping (Max) @ Ipp":"13.4V","Voltage - Reverse Standoff (Typ)":"7.78V","Current - Peak Pulse (10/1000µs)":"117A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC9.1A%20R7G/alternatives.json"},"ai":{"faq":[{"question":"What series does the 1.5SMC9.1A R7G belong to and what does that mean for pin-compatible alternatives?","answer":"The 1.5SMC series is Taiwan Semiconductor's general-purpose unidirectional TVS Zener line in the DO-214AB (SMC) package. Pin-compatible alternatives within the same series share the same footprint and pinout — the choice comes down to standoff voltage and peak pulse rating matching the protected rail. Confirm the standoff voltage, clamping level, and peak pulse current against your circuit before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5SMC9.1A-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/1.5SMC9.1A-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}}