{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE22C-B","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE22C-B","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE22C-B","factsUrl":"https://icboms.com/api/mcp/products/1.5KE22C-B","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series bidirectional Zener TVS diode, 1.5KE22C-B, 1500W peak pulse power, 18.8V reverse standoff, 32.13V clamping, DO-201AA axial, bulk.","salesMarkdown":"## 1500 W bidirectional Zener TVS — DO-201 axial, 1.5KE family The 1.5KE22C-B: Packaged in a DO-201AA (DO-27) axial-lead through-hole case, it suits legacy board layouts where surface-mount TVS arrays are not an option. The single bidirectional channel protects against both positive and negative transients without polarity concerns on the signal or power rail. ## Clamping parameters and thermal envelope for protection design The 32.13 V maximum clamping voltage at 49.7 A peak pulse current defines the voltage the protected circuit must survive during a transient event. The 1500 W rating assumes a 25°C ambient; derate above that per the standard TVS power-temperature curve. Power line protection is not specified — this is a general-purpose TVS for signal, data, or low-voltage DC bus clamping, not for AC mains or high-energy industrial supply lines. ## Obsolete — sourcing through independent distribution Littelfuse has marked the 1.5KE22C-B as obsolete. No official successor order code is recorded in the lifecycle data. The 1.5KE series remains a widely stocked TVS family across the aftermarket, so cross-reference to a functionally equivalent bidirectional 1500 W DO-201 device from the same or a compatible series is possible — confirm the breakdown and clamping window against the original design's protection threshold before substituting.","metaTitle":"Littelfuse 1.5KE22C-B TVS Diode, 1500W, DO-201, Obsolete","metaDescription":"Littelfuse 1.5KE22C-B bidirectional Zener TVS, 1500W peak pulse, 18.8V standoff, DO-201 axial. Obsolete — sourced to order via independent channels.","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":"Bulk","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":"$0.6300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/149eca2cbf10498ecc0c7eab912fe9f4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Who supplies the 1.5KE22C-B and how is it quoted?","answer":"This obsolete part is supplied through independent distribution channels. We source it against your BOM quantity and confirm availability and pricing at quote time — no stock-holding claim, no deferred lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE22C-B","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-B 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}}