{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC27","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMC27","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMC27","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC27","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5SMC series Zener TVS diode, 1.5SMC27, 1500W peak pulse power, 23.1V standoff, DO-214AB (SMC) surface mount package, Tape & Reel.","salesMarkdown":"## 1500W peak pulse — the clamping decision The 1.5SMC27: That 1500W rating means this single device can absorb a transient energy pulse that would otherwise propagate into downstream silicon — the clamp voltage of 39.38V at 40.5A peak pulse current sets the protection ceiling for the rail it guards. The reverse standoff voltage is 23.1V, with a minimum breakdown of 24.35V. This gives a 1.25V guard band between normal operating voltage and the point where the device starts conducting — tight enough that a 24V rail needs to stay clean of transients below that threshold. ## DO-214AB footprint — board-fit reality Housed in a DO-214AB (SMC) package, the same footprint as the SMCJ industry standard. The unidirectional channel means a single die in the package — cathode band on the body marks the polarity. No power line protection (the device is a standalone transient suppressor, not a filtered TVS array). For a BOM that already carries this part, the existing layout and clamp voltage spec remain valid as long as stock is sourced. No pin-compatible direct replacement from Littelfuse is documented, so a board spin would be required to substitute a different TVS series.","metaTitle":"Littelfuse 1.5SMC27 TVS Diode, 1500W, DO-214AB","metaDescription":"Littelfuse 1.5SMC27 Zener TVS diode, 1500W peak pulse, 23.1V standoff, 39.38V clamp. DO-214AB SMC package. Obsolete — sourced 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)":"24.35V","Voltage - Clamping (Max) @ Ipp":"39.38V","Voltage - Reverse Standoff (Typ)":"23.1V","Current - Peak Pulse (10/1000µs)":"40.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/118f1b70ec0f0941665a20e5472af60a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC27/alternatives.json"},"ai":{"faq":[{"question":"What package does 1.5SMC27 come in?","answer":"The package is unidirectional (single channel) and is shipped in Tape & Reel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMC27","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMC27 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T08:41:04.231Z","lastPublished":"2026-07-21T08:41:04.231Z","indexable":true}}