{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC6.8A-E3/9AT","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC6.8A-E3-9AT","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC6.8A-E3-9AT","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC6.8A-E3%2F9AT","rawCanonicalId":null},"summary":{"shortDescription":"Vishay, 1.5SMC TransZorb® series, unidirectional TVS Zener, 1.5SMC6.8A-/9AT, 5.8V reverse standoff, 6.45V minimum breakdown, 1500W peak pulse power, 143A peak pulse current, DO-214AB (SMC) surface mount, Tape & Reel.","salesMarkdown":"## What the clamping stack means for circuit protection The 1.5SMC6.8A-E3/9AT: The standoff voltage of 5.8 V sets the working rail — the TVS sits off-state below this without conduction. The breakdown minimum of 6.45 V is where the device first enters avalanche and begins clamping. Those three numbers — standoff, breakdown, clamping — are the selection chain: you size the standoff above your rail, the breakdown below the load's abs-max, and the clamping ceiling below what the protected device tolerates. ## TransZorb heritage and the 1.5SMC thermal envelope Vishay's TransZorb® series is a long-run TVS family — the DO-214AB SMC package carries 1500 W at the 10/1000 µs wave shape, which is the standard unidirectional clamping wave for mains-adjacent and supply-line protection. Junction temperature rating is -65 to +150 °C, giving the part headroom in enclosed equipment without active cooling — the thermal derate curve in the Vishay datasheet governs the allowable pulse repetition rate and duty cycle. ## SMC package — Tape & Reel assembly fit Surface-mount DO-214AB (SMCJ) lands are industry-standard across TVS families, so layout reuse from an alternate supplier is straightforward when second-source is desired. The Tape & Reel quantity confirms automated assembly flow — confirm reel diameter and leader length against your pick-and-place feeder spec before programming the placement head.","metaTitle":"1.5SMC6.8A-E3/9AT — 1500W TVS Diode, 6.45V Breakdown","metaDescription":"Vishay 1.5SMC6.8A-E3/9AT unidirectional TVS Zener, 1500W peak pulse power, 5.8V standoff, 6.45V breakdown, DO-214AB SMC.","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":"1.5SMC6.8","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMCJ)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"6.45V","Voltage - Clamping (Max) @ Ipp":"10.5V","Voltage - Reverse Standoff (Typ)":"5.8V","Current - Peak Pulse (10/1000µs)":"143A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2266","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC6.8A-E3%2F9AT/alternatives.json"},"ai":{"faq":[{"question":"What TVS ratings govern my protection circuit — standoff, breakdown, or clamping?","answer":"All three — standoff voltage (5.8 V) sets the working rail the TVS observes without conducting, minimum breakdown (6.45 V) is where avalanche begins, and the clamping voltage (10.5 V) at 143 A peak pulse is what the downstream load actually sees during a surge event. The stack determines whether the part fits your rail and survives the threat."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC6.8A-E3-9AT","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/1.5SMC6.8A-E3-9AT 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}}