{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC480C","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMC480C","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMC480C","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC480C","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5SMC series bidirectional Zener TVS diode, order code 1.5SMC480C, 1500W peak pulse power, 408V reverse standoff, DO-214AB (SMC) surface mount package.","salesMarkdown":"The 1.5SMC480C is officially listed as Obsolete by Littelfuse. For new designs or BOM continuity, this part is sourced through independent distribution channels. ## 1500 W peak pulse — what it means for the clamping decision The reverse standoff voltage is 408 V, with breakdown guaranteed between 432 V and the clamping ceiling — this window defines the protection threshold for a 400 V nominal DC bus or AC line rectified rail. Bidirectional construction (one channel) means the device clamps symmetrically in both polarities — no need to orient the part on the board for reverse-voltage events, which simplifies layout for AC-coupled or bipolar signal lines. ## DO-214AB footprint and board integration The standard JEDEC footprint for this body size is 8.0 mm × 5.6 mm with a cathode-band indicator — the bidirectional part has no polarity mark, so the silkscreen should show a generic TVS symbol. The 150°C TJ ceiling means the junction can absorb repetitive pulses as long as the average power dissipation stays within the thermal impedance of the SMC package's copper pad area.","metaTitle":"Littelfuse 1.5SMC480C TVS Diode, 1500W, DO-214AB","metaDescription":"Obsolete Littelfuse 1.5SMC480C bidirectional Zener TVS, 1500W peak pulse, 408V standoff, DO-214AB.","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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMCJ)","Voltage - Breakdown (Min)":"432V","Voltage - Clamping (Max) @ Ipp":"690.9V","Voltage - Reverse Standoff (Typ)":"408V","Current - Peak Pulse (10/1000µs)":"2.3A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4a8a4359c4139865ec4feb6a6da8698b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC480C/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the 1.5SMC480C?","answer":"No official cross-reference or pin-compatible alternative is recorded from Littelfuse. A functionally equivalent bidirectional TVS in the same DO-214AB package with a 408 V standoff and 1500 W peak pulse rating would require parametric matching from another manufacturer — no direct drop-in is documented here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMC480C","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMC480C when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T09:16:16.193Z","lastPublished":"2026-07-21T09:16:16.193Z","indexable":true}}