{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC6.8CAHR7G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5SMC6.8CAHR7G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5SMC6.8CAHR7G","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC6.8CAHR7G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor 1.5SMC6.8CAHR7G, automotive AEC-Q101 Zener TVS, 1500W peak pulse, 6.46V min breakdown, 10.5V max clamping, 150A peak pulse, DO-214AB SMC surface mount, -55°C to 150°C junction.","salesMarkdown":"## What this part is and what it protects The 1.5SMC6.8CAHR7G is an AEC-Q101 qualified unidirectional TVS Zener in the DO-214AB (SMC) package — designed to clamp voltage transients on automotive power rails before they reach downstream circuitry. The CA suffix designates the bidirectional variant — one bidirectional channel handles both polarities of transient event, which simplifies layout on sensor or communication lines that see symmetrical ESD or inductive swings. ## Clamping performance — the numbers that decide protection fit Reverse standoff voltage is 5.8 V typ — the diode sits idle below this and draws only leakage current. Breakdown triggers at 6.46 V minimum, clamping at 10.5 V maximum under the peak pulse current. The 10.5 V ceiling is what the protected load actually sees during a transient, so the downstream circuit must tolerate that as its worst-case stress level. Peak pulse current is 150 A at 10/1000 µs — this is the current the device can shunt without failing. The actual clamp voltage at 150 A stays within the 10.5 V datasheet ceiling, so the 1.5 kW rating is not a thermal average but a real SOA guarantee at the stated waveform. ## Temperature grade for under-hood and chassis deployment The upper bound is the key number for engine-compartment and direct-chassis mounting — an ECU in a sealed enclosure that runs hot in summer still has headroom before the TVS junction hits its limit. AEC-Q101 qualification means the part passed automotive-grade humidity, temperature cycling, and surge stress screening. For a sourcing buyer this is the gate-check: the part is not just a commercial TVS in the same package, it is the version automotive procurement teams require for safety and instrument bus lines. ## Package, mounting, and field-service fit The DO-214AB SMC is a three-lead gull-wing in a rectangular body — polarity band on the cathode side is visible under magnification and marks clearly for field replacement. The SMC sits flat on the board with a wide thermal pad under the cathode tab; adequate copper spreading on the pad helps the part survive repeated transients without overheating the epoxy body. Tape-and-reel packaging means the part is compatible with standard SMT pick-and-place lines. For field rework the SMC is hand-solderable with a fine-tip iron; no hot-air station is required provided the pad land pattern is accessible and flux-cleaning is part of the service procedure.","metaTitle":"1.5SMC6.8CAHR7G TVS Diode, 6.46V 1500W Automotive","metaDescription":"Taiwan Semiconductor 1.5SMC6.8CAHR7G — AEC-Q101 automotive TVS Zener, 6.46V breakdown, 10.5V clamping, 1500W peak pulse, DO-214AB SMC. Active.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Taiwan Semiconductor Corporation","Type":"Zener","Series":"Automotive, AEC-Q101, 1.5SMC","Package":"Tape & Reel (TR)","Applications":"Automotive","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":"-55°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMC)","Voltage - Breakdown (Min)":"6.46V","Voltage - Clamping (Max) @ Ipp":"10.5V","Voltage - Reverse Standoff (Typ)":"5.8V","Current - Peak Pulse (10/1000µs)":"150A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC6.8CAHR7G/alternatives.json"},"ai":{"faq":[{"question":"What does the CA suffix mean on the 1.5SMC series?","answer":"The CA variant is the bidirectional TVS — one bidirectional channel handles both polarities of transient, which matters on sensor lines and communication buses that see negative-going spikes as well as positive ones. The listing confirms 1 bidirectional channel on this specific part number."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5SMC6.8CAHR7G","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/1.5SMC6.8CAHR7G when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-14T23:42:54.282Z","lastPublished":"2026-09-14T23:42:54.282Z","indexable":true}}