{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC68CAHE3_A/I","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC68CAHE3_A-I","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC68CAHE3_A-I","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC68CAHE3_A%2FI","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor, 1.5SMC68 series TransZorb®, Automotive Zener TVS diode, 58.1V standoff, 92V clamping, 16.3A peak pulse, 1500W peak pulse power, AEC-Q101, DO-214AB SMC, surface mount, Tape & Reel.","salesMarkdown":"## What the 1.5SMC68CAHE3_A/I is and where it fits This is a unidirectional Zener-based TVS (Transient Voltage Suppressor) from Vishay's 1.5SMC series — the TransZorb® family — qualified to AEC-Q101 for automotive environments. The 'C' in the order code marks it as bidirectional, and the 'HE3' suffix designates the automotive grade and the Tape & Reel packaging variant. The standoff voltage of 58.1 V typ means the diode sits idle on the line during normal operation, presenting a high-impedance leak path. When a surge drives the line above the breakdown threshold of 64.6 V min, the device clamps and conducts the fault current away from the downstream circuitry. ## Clamping ceiling and peak pulse power Rated 1500 W peak pulse power, which is the headroom that determines how large a surge the part absorbs before it fails — a 10/1000 µs surge within the rated energy envelope does not degrade the clamping characteristic. ## Automotive temperature grade and AEC-Q101 An ECU in a engine bay that sees 130 °C on a summer day still has thermal margin — the part does not derate until the junction approaches 150 °C. AEC-Q101 qualification means the part passed the automotive stress tests: humidity, temperature cycling, and surge lifetime — the kind of screening a commercial-grade TVS diode skips. For automotive designs the qualification is not optional; it is the gate to the Bill of Materials. ## Sourcing — active production and independent distribution The 1.5SMC series is a long-running platform in the standard DO-214AB SMC package, which means the same footprint is shared across many second-source TVS suppliers — a useful hedge for single-source exposure in a BOM. Available to order against BOM requirements through independent distribution channels. Confirm current lead times and pricing at RFQ — availability is quoted to order, not guaranteed from stock.","metaTitle":"Vishay 1.5SMC68CAHE3_A/I TVS Diode, 1500W, 58.1V","metaDescription":"AEC-Q101 automotive Zener TVS, 58.1V standoff, 92V clamping, 16.3A peak pulse, DO-214AB SMC. Quoted to order through independent distribution.","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","Grade":"Automotive","Series":"1.5SMC, TransZorb®","Packaging":"Tape & Reel (TR)","Part Status":"Active","Applications":"-","Mounting Type":"Surface Mount","Qualification":"AEC-Q101","Package / Case":"DO-214AB, SMC","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC68","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)":"64.6V","Voltage - Clamping (Max) @ Ipp":"92V","Voltage - Reverse Standoff (Typ)":"58.1V","Current - Peak Pulse (10/1000µs)":"16.3A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3853","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC68CAHE3_A%2FI/alternatives.json"},"ai":{"faq":[{"question":"What does the 64.6 V minimum breakdown voltage mean for circuit design?","answer":"The diode stays off and draws only leakage current up to 64.6 V — the line can run at the nominal 48-56 V operating voltage with margin to spare. The 92 V clamping ceiling is what the downstream circuitry must withstand when a surge drives the line above breakdown."},{"question":"Why is AEC-Q101 important for this part in automotive applications?","answer":"AEC-Q101 is the automotive discrete semiconductor stress qualification — it covers surge lifetime, temperature cycling, and humidity exposure that a commercial TVS does not screen to. An engine-compartment design without it will not pass automotive safety review."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC68CAHE3_A-I","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/1.5SMC68CAHE3_A-I 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}}