{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE22C","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE22C","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE22C","factsUrl":"https://icboms.com/api/mcp/products/1.5KE22C","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series bidirectional Zener TVS diode, 1.5KE22C, 1500W peak pulse power, 18.8V reverse standoff, DO-201AA axial through-hole, tape and reel.","salesMarkdown":"## Obsolete — sourcing reality for the 1.5KE22C The Littelfuse 1.5KE22C is officially marked Obsolete, meaning the manufacturer no longer produces this bidirectional Zener TVS diode. ## What the 1500W peak pulse rating means for the BOM The 49.7A peak pulse current (Ipp) at that waveform tells you the diode can shunt substantial fault energy without failing short. The 18.8V reverse standoff voltage (Vrwm) means this part begins conducting only when the line voltage exceeds that threshold, so it sits transparently on an 18V or lower rail. Breakdown occurs at 19.8V minimum, clamping the transient to 32.13V maximum — a tight enough window to protect 24V-rated ICs from overvoltage damage. ## Package and deployment context Housed in a DO-201AA (DO-27) axial-lead through-hole package — the same footprint used across the 1.5KE series. Single bidirectional channel means one device clamps both polarities, simplifying PCB layout on AC-coupled or bipolar DC lines. No power line protection feature — this is a secondary transient suppressor, not a primary mains protector.","metaTitle":"Littelfuse 1.5KE22C TVS Diode, 1500W, 18.8V Standoff","metaDescription":"Littelfuse 1.5KE22C bidirectional Zener TVS diode, 1500W peak pulse power, 18.8V reverse standoff.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Type":"Zener","Series":"1.5KE","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Obsolete","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"19.8V","Voltage - Clamping (Max) @ Ipp":"32.13V","Voltage - Reverse Standoff (Typ)":"18.8V","Current - Peak Pulse (10/1000µs)":"49.7A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.7081","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f1ea870152ad203d90f672f2af1c1ed0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for 1.5KE22C?","answer":"Submit an RFQ through this listing. As an obsolete part, stock is sourced from independent distribution on a per-order basis; current pricing and confirmed quantities are provided at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE22C","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE22C when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}