{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC6.8CAHE3/57T","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC6.8CAHE3-57T","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC6.8CAHE3-57T","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC6.8CAHE3%2F57T","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor, Automotive AEC-Q101, 1.5SMC TransZorb, 1.5SMC6.8CAHE3/57T, bidirectional TVS diode, 1500W peak pulse, 6.45V min breakdown, 10.5V clamping, DO-214AB SMC, surface mount, Tape & Reel.","salesMarkdown":"## 1500W peak pulse — what the clamping spec means The 1.5SMC6.8CAHE3/57T is a bidirectional TVS (Transient Voltage Suppressor) diode, also called a TransZorb, rated 1500W at the 10/1000 µs peak pulse waveform. In automotive environments, load-dump transients, inductive kickback, and switch-bounce events can deliver joule-level energy in milliseconds — the 1.5 kW peak rating tells you this part survives a surge event without going short-circuit and without the clamping voltage exceeding the protected load's abs-max. The 143A peak pulse current rating is the10/1000 µs current the clamping voltage is measured at — design your transient source impedance accordingly, because exceeding 143A at the 10/1000 µs wave shape puts the diode outside its rated SOA. ## 150°C junction rating and SMC thermal integration The DO-214AB (SMC) package thermal resistance from junction to ambient depends on board layout — the cathode tab must be connected to a copper plane on the PCB to conduct heat away. For the typical automotive ECU under-hood location, the 150°C junction ceiling gives headroom over the -40 to 125°C ambient band an engine-bay module sees in summer. Surface-mount Tape & Reel packaging suits high-volume pick-and-place assembly, and the DO-214AB footprint is a standard land pattern compatible with most TVS diode families, so second-sourcing is mechanically feasible without a board spin.","metaTitle":"1.5SMC6.8CAHE3/57T TVS Diode, 1500W, Bidirectional, AEC-Q101","metaDescription":"Vishay 1.5SMC6.8CAHE3/57T, 1500W peak pulse TVS / TransZorb diode, bidirectional, AEC-Q101, DO-214AB SMC. 6.45V breakdown, 10.5V clamping. Available to order.","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":"Automotive, AEC-Q101, 1.5SMC, TransZorb®","Package":"Tape & Reel (TR)","Applications":"Automotive","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMCJ)","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":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC6.8CAHE3%2F57T/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between the unidirectional and bidirectional TVS in the same 1.5SMC family?","answer":"The bidirectional variant — identified by the \"CA\" suffix in the part number — clips transients in both polarities, making it suitable for AC lines, differential signal pairs, or any node where the voltage can go negative during a fault. The unidirectional \"CA\" polarity — drops to 0V, and negative transients are clamped at approximately -0.7V forward conduction. For automotive signal lines that can see both positive and negative excursions, the bidirectional rating is the deciding factor over the CA variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC6.8CAHE3-57T","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/1.5SMC6.8CAHE3-57T 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}}