{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMB20A","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMB20A","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMB20A","factsUrl":"https://icboms.com/api/mcp/products/1.5SMB20A","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5SMB series Zener TVS diode, 1.5SMB20A, 1500W peak pulse power, 27.7V clamping, 54.9A Ipp, DO-214AA SMB, surface mount, unidirectional.","salesMarkdown":"## 1.5 kW peak pulse in a DO-214AA footprint The 1.5SMB20A: That rating means it absorbs a 54.9 A surge and clamps it to 27.7 V max, protecting downstream 17.1 V rails from transients in telecom and industrial power interfaces. Packaged in a DO-214AA (SMB) surface-mount case, it fits standard pick-and-place assembly and reflow profiles. The 17.1 V reverse standoff voltage (V_RWM) is the DC operating level where the diode is effectively off, drawing negligible leakage. That 27.7 V clamp is the key number for the downstream regulator or IC's abs-max rating. For shorter pulses (8/20 µs), the peak power capability is significantly higher, but the datasheet's derating curve governs the actual safe operating area at elevated temperatures. ## Active production and sourcing posture Sourced through franchised and independent distribution channels.","metaTitle":"Littelfuse 1.5SMB20A TVS, 1500W, 27.7V Clamp, DO-214AA","metaDescription":"Littelfuse 1.5SMB20A Zener TVS diode, 1500W peak pulse power, 27.7V clamping, DO-214AA SMB. Active production. Sourced 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":"1.5SMB","Package":"Tape & Reel (TR)","Applications":"Telecom","Mounting Type":"Surface Mount","Package / Case":"DO-214AA, SMB","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMB","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AA (SMBJ)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"19V","Voltage - Clamping (Max) @ Ipp":"27.7V","Voltage - Reverse Standoff (Typ)":"17.1V","Current - Peak Pulse (10/1000µs)":"54.9A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2415","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/81b90dfb07fef606df152b0bf1427329.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does 1.5SMB20A come in?","answer":"It is shipped in Tape & Reel (TR) format."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMB20A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMB20A 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}}