{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMB22CA","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMB22CA","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMB22CA","factsUrl":"https://icboms.com/api/mcp/products/1.5SMB22CA","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5SMB series bidirectional TVS diode, Type Zener, 1.5SMB22CA, DO-214AA (SMB) package, 1500W peak pulse power, 18.8V reverse standoff, 30.6V clamping voltage.","salesMarkdown":"## Clamping performance for 18.8V rails The 1.5SMB22CA: That 30.6V ceiling is what downstream silicon sees — if the protected device's abs-max rating sits above that, the TVS does its job. With a peak pulse power rating of 1500W (1.5kW), this part handles the surge energy typical of telecom line cards, where a lightning-induced transient can dump several hundred watts in a few microseconds. The DO-214AA (SMB) package keeps the thermal path short to the board copper, which is what actually sinks the pulse heat. ## Package and rework reality The cathode band is clearly marked on the body — no ambiguity about orientation when placing or reworking. Under hot air, the SMB body heats evenly; the leads wet out quickly with a standard SAC305 profile. It survives multiple reflow cycles without cracking the junction passivation, as long as the peak temperature stays within the JEDEC moisture sensitivity level the part is rated for. ## Active production — no end-of-life watch needed Littelfuse lists the 1.5SMB22CA as Active in production. There is no NRND notice, no last-time-buy window, and no official successor — the part is a current catalog item.","metaTitle":"Littelfuse 1.5SMB22CA TVS Diode, 30.6V Clamp, DO-214AA","metaDescription":"Littelfuse 1.5SMB22CA bidirectional TVS diode, 1500W peak pulse, 18.8V standoff, 30.6V clamp. Active production, DO-214AA SMB package. Quoted 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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AA (SMBJ)","Voltage - Breakdown (Min)":"20.9V","Voltage - Clamping (Max) @ Ipp":"30.6V","Voltage - Reverse Standoff (Typ)":"18.8V","Current - Peak Pulse (10/1000µs)":"49.7A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2635","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/81b90dfb07fef606df152b0bf1427329.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMB22CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMB22CA 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}}