{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC68AHE3/9AT","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC68AHE3-9AT","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC68AHE3-9AT","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC68AHE3%2F9AT","rawCanonicalId":null},"summary":{"shortDescription":"Vishay 1.5SMC68AHE3/9AT unidirectional TVS/Zener diode, 58.1 V reverse standoff, 92 V clamping @ 16.3 A, 1.5 kW peak pulse, AEC-Q101 qualified, DO-214AB SMC surface-mount package.","salesMarkdown":"## Transient protection rating and what the clamping spec means The 1.5SMC68AHE3/9AT: That 92 V ceiling is the protected rail voltage under a IEC 61000-4-2 or similar surge event — the downstream circuitry sees no more than 92 V regardless of the incoming transient amplitude. The 1.5 kW peak pulse rating (1.5SMC —) defines the device's energy absorption ceiling for a 10/1000 µs waveforms — this series is sized for board-level signal and control line protection, not power bus clamping. The unidirectional single-channel topology means it handles one polarity of transient only; bidirectional protection requires two devices or the complementary polarity series. Power line protection is listed No — this is a signal/control-line TVS, not a primary power bus clamp. ## Automotive qualification and temperature grade AEC-Q101 qualification means the die and package passed the automotive stress sequence — humidity, temperature cycling, surge current, and mechanical shock — at the wafer level. The DO-214AB SMC package mounts flat to the PCB with solder-terminated leads — the cathode tab under the body is the primary heatsinking surface. The package is not isolated from the lead frame, so electrical isolation from a heatsink requires a separate dielectric pad or mica washer in thermally stressed layouts. ## Automotive TVS selection — where the 1.5SMC family fits The 1.5SMC series is the automotive screened sister to the standard 1.5SMC line — the base number 1.5SMC68 confirms the 68 V nominal standoff band, which targets 48 V automotive board nets and ECUs operating near that rail. TransZorb® is Vishay's trademark for the bidirectional TVS construction: the unidirectional variant used here is the correct orientation for protecting a rail referenced to chassis ground.","metaTitle":"1.5SMC68AHE3/9AT TVS Diode, 58.1V Standoff, 92V Clamp","metaDescription":"Vishay 1.5SMC68AHE3/9AT unidirectional TVS diode, 58.1 V standoff, 92 V clamping @ 16.3 A, 1.5 kW peak pulse, AEC-Q101, DO-214AB. Active — quoted 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":"1.5SMC68","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)":"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":"$0.4200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC68AHE3%2F9AT/alternatives.json"},"ai":{"faq":[{"question":"What type and series is 1.5SMC68AHE3/9AT?","answer":"The part is a unidirectional Zener-type TVS diode in the Automotive AEC-Q101 1.5SMC series, branded TransZorb®."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC68AHE3-9AT","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/1.5SMC68AHE3-9AT 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}}