{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMB51CA","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMB51CA","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMB51CA","factsUrl":"https://icboms.com/api/mcp/products/1.5SMB51CA","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse 1.5SMB series bidirectional TVS diode, 1.5SMB51CA, 1500W peak pulse power, 70.1V clamping, DO-214AA SMB surface mount, tape and reel.","salesMarkdown":"## Transient protection envelope: 1500W peak pulse, 70.1V clamp The 1.5SMB51CA: The 48.5V minimum breakdown voltage ensures the device triggers before the protected circuitry sees damaging overvoltage, while the 43.6V reverse standoff voltage allows continuous operation on a 43.6V DC bus without leakage or degradation. ## DO-214AA SMB footprint and assembly fit Housed in the DO-214AA (SMB) surface-mount package, the 1.5SMB51CA uses the standard JEDEC footprint for this power level — compatible with reflow soldering and automated pick-and-place assembly without special handling. The -65°C to 150°C junction temperature range covers outdoor telecom cabinet deployment and industrial enclosures where ambient temperatures swing widely. ## Telecom application fit and sourcing posture Designated for Telecom applications, this TVS diode is suited for protecting communication line interfaces — RS-485, Ethernet PHY, T1/ — from lightning-induced surges and ESD events per Telcordia GR-1089 or ITU-T K.20/K.21 recommendations.","metaTitle":"1.5SMB51CA Littelfuse TVS Diode, 1500W, 70.1V Clamp","metaDescription":"Active Littelfuse 1.5SMB51CA bidirectional TVS diode, 1500W peak pulse, 70.1V clamping, DO-214AA SMB. Sourced to order against 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)":"48.5V","Voltage - Clamping (Max) @ Ipp":"70.1V","Voltage - Reverse Standoff (Typ)":"43.6V","Current - Peak Pulse (10/1000µs)":"21.7A"}},"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":"Where can I buy the 1.5SMB51CA and get a price?","answer":"Submit a request for quote to confirm current availability and pricing for your target quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMB51CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMB51CA 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}}