{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMB47CA","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMB47CA","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMB47CA","factsUrl":"https://icboms.com/api/mcp/products/1.5SMB47CA","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5SMB series bidirectional Zener TVS diode, 1.5SMB47CA, 1500W peak pulse power, 40.2V standoff, 64.8V clamp, DO-214AA (SMB) surface mount package, Tape & Reel.","salesMarkdown":"## 1500 W pulse rating and the clamp it delivers The 1.5SMB47CA: That 1500 W rating means the part absorbs a 23.5 A surge (at 64.8 V clamping) without failing — a telecom line card or DC power rail hit by lightning-induced transients survives the event if the TVS is placed close to the board edge. The reverse standoff voltage is 40.2 V typical, with a minimum breakdown of 44.7 V. A 40 V bus sees no leakage at normal operating levels; the diode only conducts when the surge pushes the line above the breakdown threshold. The clamping ceiling at 64.8 V means downstream components rated for 65 V or higher stay within their safe operating area. Single bidirectional channel — one device clamps both polarities, saving board space over two unidirectional diodes back-to-back. The DO-214AA (SMB) package is a common footprint; the same pad layout works for the whole 1.5SMB family, so swapping between voltage grades needs no board spin. ## Temperature range and rework bench reality Operating junction temperature spans -65°C to +150°C — wide enough for outdoor telecom cabinets or under-hood automotive auxiliary circuits. The DO-214AA body is small enough that a hot-air station at 260°C (lead-free profile) lifts the part cleanly without overheating adjacent passives, provided a preheat soak at 150°C is used. Use it on data lines, I/O ports, or DC supplies below 40 V where the 1500 W pulse rating matches the threat level.","metaTitle":"Littelfuse 1.5SMB47CA TVS Diode, 1500W, DO-214AA","metaDescription":"Littelfuse 1.5SMB47CA bidirectional Zener TVS diode, 1500W peak pulse, 40.2V standoff, 64.8V clamp. Active production, sourced per RFQ.","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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AA (SMBJ)","Voltage - Breakdown (Min)":"44.7V","Voltage - Clamping (Max) @ Ipp":"64.8V","Voltage - Reverse Standoff (Typ)":"40.2V","Current - Peak Pulse (10/1000µs)":"23.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2635","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/81b90dfb07fef606df152b0bf1427329.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the 1.5SMB47CA a bidirectional or unidirectional device?","answer":"It is a single bidirectional channel, clamping both positive and negative transients with one device."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMB47CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMB47CA 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}}