{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC18AHM3_A/H","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC18AHM3_A-H","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC18AHM3_A-H","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC18AHM3_A%2FH","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, 1.5SMC, TransZorb®, 1.5SMC18AHM3_A/H, Zener TVS, 1500W peak pulse, 15.3V standoff, DO-214AB (SMC), Surface Mount, Tape & Reel.","salesMarkdown":"## 1500 W peak pulse in a DO-214AB footprint The 1.5SMC18AHM3_A/H is a 1500 W peak-pulse Zener TVS diode from Vishay's automotive-grade 1.5SMC TransZorb series, qualified to AEC-Q101 for use in under-hood and chassis electronics where transient suppression must hold within tolerance over the full -65 °C to 150 °C junction temperature range. Housed in the DO-214AB (SMC) surface-mount package, it clamps a 15.3 V reverse standoff rail to 25.2 V maximum at a peak pulse current of 59.5 A (10/1000 µs waveform), which means a 12 V automotive bus sees the clamp voltage stay below the 30 V abs-max of downstream ECUs during a load-dump or inductive kickback event. ## Clamping voltage and breakdown margin Minimum breakdown voltage is 17.1 V, giving a 1.8 V guard band above the 15.3 V standoff — this margin ensures the diode does not conduct during normal 12 V system ripple (up to 16 V typical) but fires before the protected IC's abs-max rating is reached. The unidirectional single-channel design (one channel) is intended for DC rails where reverse polarity is handled separately; for AC or bidirectional lines, a bidirectional variant from the same 1.5SMC family would be the correct fit. ## Automotive qualification and sourcing posture No pin-compatible second-source is listed on the official record, so the Vishay part number is the sole qualified option for this specific clamp voltage and package.","metaTitle":"Vishay 1.5SMC18AHM3_A/H TVS Diode, 1500W, DO-214AB","metaDescription":"Vishay 1.5SMC18AHM3_A/H automotive AEC-Q101 TVS, 1500W peak pulse, 15.3V standoff, 25.2V clamp. Active production, sourced 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, Telecom","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC18","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMC)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"17.1V","Voltage - Clamping (Max) @ Ipp":"25.2V","Voltage - Reverse Standoff (Typ)":"15.3V","Current - Peak Pulse (10/1000µs)":"59.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3331","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Vishay provide for 1.5SMC18AHM3_A/H?","answer":"The part carries AEC-Q101 automotive qualification. RoHS and REACH compliance documentation is standard for Vishay's 1.5SMC series; specific certificates are available from the manufacturer or through the sourcing channel at RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC18AHM3_A-H","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/1.5SMC18AHM3_A-H 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}}