{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC91AHM3_A/H","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC91AHM3_A-H","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC91AHM3_A-H","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC91AHM3_A%2FH","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor, Automotive AEC-Q101, 1.5SMC series, unidirectional Zener TVS, 1500 W peak pulse, 86.5 V min breakdown, 125 V clamping @ 12 A, SMC (DO-214AB), surface mount.","salesMarkdown":"## Voltage window: from standoff to clamping The 1.5SMC91AHM3_A/H: The 1500 W peak pulse rating (10/1000 µs waveform) is the protection ceiling this diode delivers in a clamp — it absorbs the transient energy and holds the downstream circuit at or below 125 V clamping voltage at the rated 12 A peak pulse current. That 125 V ceiling is the number the board designer verifies against the upstream semiconductor abs-max rating. Below the event, the reverse standoff typ is 77.8 V — the diode sits off and presents only its leakage to the rail. The breakdown minimum of 86.5 V establishes the margin between nominal operating voltage and the point where the device begins conducting in avalanche. The gap between 77.8 V and 86.5 V gives the circuit designer room to set a dc working voltage below the protection threshold without the TVS drawing leakage current continuously. Rated for junction temperatures from -65 °C to 150 °C and qualified to AEC-Q101, the thermal margin across that range supports engine-compartment and telematics-module transient-suppression rails where ambient spikes are common.","metaTitle":"Vishay 1.5SMC91AHM3_A/H TVS Diode, 1500W Peak Pulse","metaDescription":"Vishay 1.5SMC91AHM3_A/H — unidirectional Zener TVS, 1500 W peak pulse, 86.5 V breakdown, 125 V clamping, AEC-Q101, SMC (DO-214AB). Active.","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":"1.5SMC91","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)":"86.5V","Voltage - Clamping (Max) @ Ipp":"125V","Voltage - Reverse Standoff (Typ)":"77.8V","Current - Peak Pulse (10/1000µs)":"12A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3331","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC91AHM3_A%2FH/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 1.5SMC91AHM3_A/H in this Circuit Protection family?","answer":"No pin-compatible alternative is listed as an official cross-reference on this part number's record. The base product number 1.5SMC91 points to the family landing — any 1.5SMC91x variant in the same SMC package is a candidate for cross-shopping, but a parametric match on standoff voltage and peak pulse rating must be confirmed before substituting into a BOM."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC91AHM3_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/1.5SMC91AHM3_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}}