{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC7.5","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMC7.5","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMC7.5","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC7.5","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse 1.5SMC Zener TVS diode, 1.5SMC7.5, 6.4V standoff / 6.75V breakdown, 11.87V clamping @ 134.5A, 1500W peak pulse, -55°C to 150°C TJ, surface mount, DO-214AB (SMCJ), tape & reel.","salesMarkdown":"## What the voltage ratings mean for your rail The 1.5SMC7.5 is a unidirectional Zener-type TVS diode in the Littelfuse 1.5SMC series, housed in the DO-214AB (SMCJ) surface-mount package — the most common SMC package choice for 1500W TVS devices. The reverse standoff voltage of 6.4 V sets the working rail; the part is invisible to the circuit until a transient exceeds that threshold. Minimum breakdown of 6.75 V means the device turns on hard when the rail climbs above that point, clamping the voltage at 11.87 V maximum under a 134.5 A peak pulse (10/1000 µs waveform). That clamping ceiling is what the downstream load sees during the event — the 5.47 V differential between standoff and clamping is the let-through margin the designer budgets against. ## Peak pulse capability and thermal margin The 134.5 A peak pulse current and the associated 1500 W peak pulse power rating define the transient energy the device survives without degradation. Because this is a unidirectional device, it protects one polarity only — any reverse polarity event on the protected rail passes through the TVS forward conduction path and may exceed the device's thermal limits. Confirm the rail polarity before committing to this variant. ## Sourcing status and what it means for the BOM Independent distribution is the primary sourcing channel; lot-specific availability and full traceability are confirmed at RFQ. The 1.5SMC series itself remains a standard Littelfuse family, so alternative voltage points in the series may offer a direct fit if the rail voltage allows a nearby standoff value.","metaTitle":"1.5SMC7.5 Littelfuse Zener TVS Diode, 6.4V Standoff","metaDescription":"Littelfuse 1.5SMC7.5 Zener TVS diode, 6.4V standoff, 6.75V min breakdown, 11.87V clamping @ 134.5A, DO-214AB SMC. Obsolete — quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Type":"Zener","Series":"1.5SMC","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Obsolete","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)":"6.75V","Voltage - Clamping (Max) @ Ipp":"11.87V","Voltage - Reverse Standoff (Typ)":"6.4V","Current - Peak Pulse (10/1000µs)":"134.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/118f1b70ec0f0941665a20e5472af60a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC7.5/alternatives.json"},"ai":{"faq":[{"question":"What standoff voltage does the 1.5SMC7.5 present to the protected circuit?","answer":"The reverse standoff voltage is 6.4 V typical — the circuit operates below this level without any TVS conduction. The minimum breakdown voltage of 6.75 V is the turn-on threshold, and the clamping maximum of 11.87 V at 134.5 A peak pulse is the let-through ceiling during a transient event."},{"question":"How is this part packaged, and does the package affect board integration?","answer":"It ships in tape and reel on a DO-214AB (SMCJ) supplier device package — the standard SMC footprint for 1500W TVS diodes. The surface-mount form factor suits automated placement; the SMCJ pinout routes the cathode to the board plane for thermal relief under the clamping event."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMC7.5","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMC7.5 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T12:23:09.418Z","lastPublished":"2026-07-21T12:23:09.418Z","indexable":true}}