{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC7.5CA","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMC7.5CA","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMC7.5CA","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC7.5CA","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse 1.5SMC7.5CA bidirectional Zener TVS diode, 1500W peak pulse, 6.4V reverse standoff, 7.13V min breakdown, 11.3V clamping @ 134.5A, DO-214AB SMC surface mount.","salesMarkdown":"## 1500W peak pulse — what that rating means in practice The 1.5SMC7.5CA clamps transients at 11.3V maximum when hit with a 10/1000µs surge waveform at 134.5A peak — that is the clamping voltage the downstream circuit sees if the surge reaches the diode's current-handling limit. The standoff voltage of 6.4V sets the working rail ceiling: the diode stays idle up to that level and activates above 7.13V breakdown. For a 5V or 12V rail, the 6.4V standoff gives comfortable headroom above normal operation while catching fast-edge transients before they reach the clamping ceiling. Bidirectional — the CA suffix means it clamps symmetrically in both polarities, so it protects differential signal lines, AC-coupled rails, or any node that sits at a floating or bipolar potential. A unidirectional UA variant of the same series would only block one polarity and leave the opposite direction unprotected. ## DO-214AB SMC package and the 1.5SMC series context The 1.5SMC series delivers 1500W (1.5kW) in the DO-214AB (SMCJ) footprint — the same body size as the common SMCJ TVS family. The surface-mount SMCJ-style body mounts flush to the PCB pad; the large die-to-heat-sink thermal path within the package is what lets it absorb the 134.5A pulse without the junction temperature exceeding 150°C. The low end covers cold-start and outdoor winter deployment; the high end leaves margin against self-heating during a sustained surge event.","metaTitle":"Littelfuse 1.5SMC7.5CA TVS Diode, 1500W, 6.4V","metaDescription":"Littelfuse 1.5SMC7.5CA bidirectional TVS diode, 1500W peak pulse, 6.4V standoff, 7.13V min breakdown, 11.3V clamping. Active status. 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)":"7.13V","Voltage - Clamping (Max) @ Ipp":"11.3V","Voltage - Reverse Standoff (Typ)":"6.4V","Current - Peak Pulse (10/1000µs)":"134.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/118f1b70ec0f0941665a20e5472af60a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC7.5CA/alternatives.json"},"ai":{"faq":[{"question":"What does the CA suffix on 1.5SMC7.5CA mean?","answer":"CA marks this as the bidirectional variant of the 1.5SMC7.5 — the device clamps both polarities. An A-suffix variant (unidirectional) would only block one direction; the CA is the right choice for AC rails, differential pairs, or any floating node where transients can appear in either direction."},{"question":"Where does the 1.5SMC7.5CA fit in the Littelfuse TVS lineup?","answer":"The 1.5SMC series is Littelfuse's 1500W (1.5kW) peak-pulse family in the DO-214AB SMCJ package — one power step above the 500W SMCJ series and below the 3000W 5SMC series. The 7.5V breakdown rating places it in the low-voltage TVS range, typically protecting 3.3V, 5V, or 12V rails against inductive kickback or lightning-surge transients."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMC7.5CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMC7.5CA 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}}