{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC120AHM3_A/H","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC120AHM3_A-H","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC120AHM3_A-H","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC120AHM3_A%2FH","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 1.5SMC TransZorb® series, unidirectional TVS, 1500W peak pulse, 102V reverse standoff, DO-214AB SMC package, Tape & Reel.","salesMarkdown":"The 1.5SMC120AHM3_A/H is a 1500 W peak-pulse unidirectional TVS diode from Vishay's automotive-grade 1.5SMC TransZorb series, rated for a 102 V reverse standoff and clamping at 165 V with a 9.1 A peak pulse current (10/1000 µs waveform). Housed in the DO-214AB (SMC) package, the part is surface-mount and mates with a standard SMC footprint — the same pad layout used across the 1.5SMC family. The single unidirectional channel means the cathode band marks the protected side; the anode connects to ground. Peak pulse power of 1500 W at 10/1000 µs is derated above 25 °C per the standard TVS derating curve — at 150 °C junction the effective power drops to about 25 % of the 1500 W rating, so the thermal pad area on the PCB should follow the datasheet's recommended copper land pattern. ## Where it lands — automotive and telecom transient protection Vishay lists this part for Automotive and Telecom applications — think 24 V truck ECUs, 12 V passenger-car body controllers, or 48 V telecom rectifier outputs where a unidirectional clamp shunts positive surges to ground. The TransZorb die structure delivers fast response time typical of silicon-avalanche TVS, clamping within picoseconds of the transient edge.","metaTitle":"1.5SMC120AHM3_A/H TVS Diode, 1500W, 102V Standoff, DO-214AB","metaDescription":"Vishay 1.5SMC120AHM3_A/H unidirectional TVS, 1500W peak pulse, 102V reverse standoff, AEC-Q101 qualified. Active production, sourced per RFQ.","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":"1.5SMC120","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)":"114V","Voltage - Clamping (Max) @ Ipp":"165V","Voltage - Reverse Standoff (Typ)":"102V","Current - Peak Pulse (10/1000µs)":"9.1A"}},"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 is the closest pin-compatible alternative to 1.5SMC120AHM3_A/H in this TVS family?","answer":"Within the 1.5SMC series, the non-automotive variant 1.5SMC120A (without the HM3 suffix) shares the same DO-214AB package and identical electrical ratings — 102 V standoff, 165 V clamp, 1500 W peak pulse — but lacks AEC-Q101 qualification. For designs that do not require automotive-grade screening, it is a drop-in substitute."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC120AHM3_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/1.5SMC120AHM3_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}}