{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC300AHE3_ALL","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC300AHE3_ALL","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC300AHE3_ALL","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC300AHE3_ALL","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 1.5SMC TransZorb® series, TVS Zener diode, 1.5SMC300AHE3_ALL, 256V reverse standoff, 414V clamp, 1500W peak pulse, DO-214AB SMC package.","salesMarkdown":"## 1500W automotive-grade TVS — 256 V rail clamp The Vishay 1.5SMC300AHE3_ALL is a 1500 W peak-pulse TVS Zener diode from the TransZorb® series, qualified to AEC-Q101 for automotive applications. This is the energy it absorbs in a single surge event before the junction temperature exceeds the 150 °C maximum. For shorter pulses (8/20 µs) the peak power capability is higher, but the 10/1000 µs figure is the one to budget against the worst-case transient in the system. ## AEC-Q101 and the -65 to 150 °C operating envelope AEC-Q101 qualification means this part passed the automotive-grade stress tests: high-temperature reverse bias, temperature cycling, and ESD robustness per the JEDEC standard. Production status is active — the part is in current manufacture, not a last-time-buy or NRND item. ## DO-214AB SMC — footprint and board-fit note The copper pad area under the cathode tab sets the thermal resistance — a 600 mm² pad on 2 oz copper drops RθJA to roughly 60 °C/W, which matters when the part absorbs repetitive pulses.","metaTitle":"Vishay 1.5SMC300AHE3_ALL TVS, 256V Standoff, 1500W, DO-214AB","metaDescription":"Vishay 1.5SMC300AHE3_ALL automotive TVS diode, 256V reverse standoff, 414V clamp at 3.6A, 1500W peak pulse, AEC-Q101 qualified, DO-214AB.","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","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC300","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)":"285V","Voltage - Clamping (Max) @ Ipp":"414V","Voltage - Reverse Standoff (Typ)":"256V","Current - Peak Pulse (10/1000µs)":"3.6A"}},"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/1.5SMC300AHE3_ALL/alternatives.json"},"ai":{"faq":[{"question":"What does the 1500W peak-pulse power rating mean for my circuit?","answer":"The 1500 W rating is measured with a 10/1000 µs exponential waveform — the standard TVS test pulse. It means the diode can absorb a single surge of that energy without exceeding the 150 °C junction temperature limit. For repetitive pulses, derate the peak power per the pulse-train curve in the datasheet; the junction temperature accumulates across events."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC300AHE3_ALL","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/1.5SMC300AHE3_ALL 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}}