{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC91A","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMC91A","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMC91A","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC91A","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse 1.5SMC91A unidirectional TVS diode, 77.8V standoff, 86.5V min breakdown, 125V clamping, 12.2A peak pulse, 1.5kW peak pulse power, DO-214AB SMC surface-mount.","salesMarkdown":"## TVS diode in the 1.5SMC family The 1.5SMC91A: The single unidirectional channel handles one polarity of the circuit; the polarity orientation on the board matters — the cathode connects to the positive rail.","metaTitle":"1.5SMC91A Littelfuse TVS Diode, 77.8V Standoff, 1.5kW","metaDescription":"Littelfuse 1.5SMC91A unidirectional TVS diode, 77.8V standoff, 125V clamping, 1.5kW peak pulse power, -55°C to 150°C junction. Active — quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Type":"Zener","Series":"1.5SMC","Package":"Tape & Reel (TR) Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC","Operating Temperature":"-55°C ~ 150°C (TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMCJ)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"86.5V","Voltage - Clamping (Max) @ Ipp":"125V","Voltage - Reverse Standoff (Typ)":"77.8V","Current - Peak Pulse (10/1000µs)":"12.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4a8a4359c4139865ec4feb6a6da8698b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC91A/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 1.5SMC91A and how is it quoted for volume purchases?","answer":"Volume leads are quoted per BOM quantity and lot-date requirements if traceability is specified."},{"question":"What is the 1.5SMC91A used for and what makes this voltage rating stand out?","answer":"It protects general-purpose circuits from voltage transients — the 77.8 V standoff and 86.5 V breakdown sit above standard 24 V and 48 V rails, and the 125 V clamping ceiling keeps downstream components within their abs-max ratings during a surge event. The 1.5 kW peak pulse rating means it survives single-event transients up to that energy without degradation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMC91A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMC91A 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}}