{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE170-B","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE170-B","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE170-B","factsUrl":"https://icboms.com/api/mcp/products/1.5KE170-B","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. 1.5KE series TVS Zener diode, 1.5KE170-B, unidirectional, 1500W peak pulse power, 145V reverse standoff, DO-201AA axial-lead package, bulk.","salesMarkdown":"## 1500 W axial-lead TVS — what the ratings mean for your rail The 1.5KE170-B: With a 145 V reverse standoff voltage, it sits across a 120 VAC or 145 VDC bus and stays transparent until a transient drives the voltage past the 153.45 V breakdown threshold. The 245.7 V clamping voltage limits the peak to 6.5 A of pulse current, protecting downstream semiconductors from avalanche failure. The DO-201AA axial-lead package (also known as DO-27) is a through-hole form factor that handles the thermal pulse of a 1500 W surge without derating. ## Obsolete — sourcing through independent channels Littelfuse lists the 1.5KE170-B as obsolete. No official successor part number is published.","metaTitle":"Littelfuse 1.5KE170-B TVS Diode, 1500W, Unidirectional","metaDescription":"Littelfuse 1.5KE170-B 1500W unidirectional TVS diode, 145V standoff, 245.7V clamp, DO-201 package. Obsolete — sourced to order. Request quote.","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","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"153.45V","Voltage - Clamping (Max) @ Ipp":"245.7V","Voltage - Reverse Standoff (Typ)":"145V","Current - Peak Pulse (10/1000µs)":"6.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/149eca2cbf10498ecc0c7eab912fe9f4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE170-B/alternatives.json"},"ai":{"faq":[{"question":"How can I order the 1.5KE170-B or check stock?","answer":"The 1.5KE170-B is obsolete but available through independent distribution. Submit an RFQ with your target quantity and preferred date-code range; we confirm availability, pricing, and packaging condition (sealed reel, bulk, or cut tape) at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE170-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/1.5KE170-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}}