{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC91CA","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMC91CA","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMC91CA","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC91CA","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse 1.5SMC91CA bidirectional TVS diode, 77.8V standoff, 125V clamping @ 12.2A, 1.5kW peak pulse, -55°C to 150°C junction, DO-214AB SMC package, surface mount, Tape & Reel.","salesMarkdown":"## What a TVS diode built on a Zener junction means The 1.5SMC91CA: That Zener construction gives it a defined, repeatable clamping characteristic. ## The standoff, breakdown, and clamping chain 77.8 V reverse standoff is the maximum voltage the line can sit at continuously without the TVS conducting. The breakdown minimum of 86.5 V is where the junction begins to avalanche and the clamp activates. A longer or higher-energy waveform will derate the effective clamping capability. ## Thermal and package fit The DO-214AB (SMCJ) package is the standard surface-mount footprint for this power class. It solders in a standard reflow or wave profile; the cathode bar on the body aligns with the polarity markings and must be correctly oriented — a reversed TVS will conduct continuously and fail. Tape-and-reel and cut-tape packaging are both available, so the part suits both high-volume SMT assembly and low-quantity prototype runs without a minimum order penalty. The series is rated for general-purpose applications and does not carry a dedicated power-line-protection certification — for AC mains protection you need a part certified to IEC 61643-11 or equivalent; the 1.5SMC91CA is the right fit for DC bus, signal line, or telecommunications node protection. ## Sourcing posture Available through independent distribution; quoting and lead time confirmed against the BOM quantity at RFQ.","metaTitle":"Littelfuse 1.5SMC91CA TVS Diode, 125V Clamping, 1.5kW","metaDescription":"Littelfuse 1.5SMC91CA bidirectional TVS diode, 77.8V standoff, 125V clamping @ 12.2A, 1.5kW peak pulse, DO-214AB. 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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMCJ)","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":"$0.6700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4a8a4359c4139865ec4feb6a6da8698b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC91CA/alternatives.json"},"ai":{"faq":[{"question":"What is the 1.5SMC91CA used for?","answer":"The 1.5SMC91CA is a general-purpose bidirectional TVS diode for DC bus, signal line, and telecommunications node protection — it clamps voltage transients on lines that can briefly see up to roughly 77.8 V in normal operation, with a 125 V clamping ceiling under surge."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMC91CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMC91CA 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}}