{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC75AHE3/9AT","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC75AHE3-9AT","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC75AHE3-9AT","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC75AHE3%2F9AT","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101, 1.5SMC series, unidirectional Zener TVS diode, 1.5 kW peak pulse at 10/1000 µs, 64.1 V reverse standoff, 71.3 V minimum breakdown, 104 V clamping, DO-214AB (SMC) surface-mount package, -65°C to +150°C junction temperature, Tape & Reel.","salesMarkdown":"## Clamping, standoff, and breakdown — what the three voltages mean for the protection window The 1.5SMC75AHE3/9AT: The 64.1 V reverse standoff rating is the voltage the TVS sees in normal operation — the circuit runs below this without the device conducting. The 71.3 V minimum breakdown is where the TVS begins to clamp; above this threshold the Zener avalanche kicks in and the device presents a low-impedance path to ground. The 104 V maximum clamping voltage is what the downstream sensitive circuitry sees at the rated peak pulse current of 14.6 A — that 104 V ceiling is the design limit the protected side must withstand. Sizing against a fast-clamp TVS table while the threat is a 10/1000 µs load dump produces a conservative result, which is appropriate for automotive. The 14.6 A peak pulse current at the clamping voltage confirms the device handles the current through the TVS at the moment the clamp is active. ## AEC-Q101 qualification and the automotive deployment envelope The AEC-Q101 qualifier on this series confirms the part has passed the automotive stress-sequence — temperature cycling, high-temperature reverse bias, and terminal strength — at the component level before entering a module-level qualification flow. Junction temperature is rated to 150°C, and the -65°C lower limit covers cold-start conditions. The TransZorb® designation is Vishay's voltage-clamping geometry, meaning the response is bidirectional Zener-style avalanche, not a thyristor crowbar — the clamping voltage rises with current rather than latching, which keeps the protected circuit in a defined overvoltage state until the transient passes. ## DO-214AB footprint and surface-mount assembly The Tape & Reel packaging is the standard carrier format for automated placement; confirm the reel diameter and tape width against the assembly line feeder specification. Surface-mount TVS in this package class does not require a heatsink — the PCB pad area and the board copper define the thermal resistance from junction to ambient.","metaTitle":"Vishay 1.5SMC75AHE3/9AT TVS Diode, 75V, DO-214AB","metaDescription":"AEC-Q101 qualified unidirectional TVS diode, 1500W peak pulse, 64.1V standoff / 71.3V breakdown / 104V clamping. Active production, 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":"1.5SMC75","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)":"71.3V","Voltage - Clamping (Max) @ Ipp":"104V","Voltage - Reverse Standoff (Typ)":"64.1V","Current - Peak Pulse (10/1000µs)":"14.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC75AHE3%2F9AT/alternatives.json"},"ai":{"faq":[{"question":"What standoff voltage does the 1.5SMC75AHE3/9AT protect at?","answer":"The breakdown threshold of 71.3 V minimum is where clamping begins, and the 104 V clamping ceiling at 14.6 A peak defines the maximum overvoltage the downstream load sees during a fault transient."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC75AHE3-9AT","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/1.5SMC75AHE3-9AT 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}}