{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE170CA-B","brand":"Diodes Incorporated","brandSlug":"diodes-inc","productSlug":"1.5KE170CA-B","canonicalUrl":"https://icboms.com/diodes-inc/1.5KE170CA-B","factsUrl":"https://icboms.com/api/mcp/products/1.5KE170CA-B","rawCanonicalId":null},"summary":{"shortDescription":"Diodes Incorporated 1.5KE170CA-B Zener TVS Diode, Bidirectional, 1500W Peak Pulse, DO-201AA/DO-27 Axial, Bulk.","salesMarkdown":"## 1500W bidirectional Zener TVS — 145V standoff, 234V clamp The 1.5KE170CA-B: The 145V standoff means the part stays transparent on a nominal 120V or 130V rail — it only begins conducting when the transient exceeds the breakdown threshold. The 234V clamp ceiling protects downstream silicon rated for 250V or less, which covers most 120VAC secondary-side rectifier buses and 48V telecom rails. ## Obsolete — no successor on record from Diodes Diodes Incorporated lists the 1.5KE170CA-B as Obsolete. No official successor order code is published — the 1.5KE series itself is the reference, but specific voltage/package variants within it may also face end-of-life. For a BOM that already carries this part, the procurement path is independent-distribution surplus or broker channel, not a franchised new-production buy. The junction temperature range spans -55°C to 175°C, which covers outdoor telecom cabinets, industrial control enclosures, and under-hood automotive modules that see sustained heat soak. The DO-201AA/DO-27 axial leaded package is through-hole — it survives rework and field replacement cycles better than a surface-mount TVS in the same power class. ## Bidirectional, single-channel — no power-line protection The bidirectional channel clamps both polarities with a single device, which saves board space on AC-coupled signal lines or bipolar DC rails. For 120/230VAC primary-side protection, a varistor or higher-voltage TVS in a larger package is the correct choice. The 6.4A peak pulse current at 10/1000µs is the current the device can sink during the clamp event. At the 1500W peak power level, the junction temperature rise during the pulse is the limiting factor — the 175°C TJ max sets the derating curve above 25°C ambient. In a 85°C enclosure, the effective peak pulse power drops to roughly 60% of the 1500W rating.","metaTitle":"1.5KE170CA-B Diodes Inc TVS Diode, 1500W, Bidirectional","metaDescription":"1.5KE170CA-B Diodes Inc Zener TVS, 1500W peak pulse, 145V standoff, 234V clamp. Obsolete — sourced to order against RFQ through independent channels.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Diodes Incorporated","Type":"Zener","Series":"-","Package":"Bulk","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE170","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"162V","Voltage - Clamping (Max) @ Ipp":"234V","Voltage - Reverse Standoff (Typ)":"145V","Current - Peak Pulse (10/1000µs)":"6.4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4652","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b6b9d4121cb66208511919f4a66769e1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the 1.5KE170CA-B and get current pricing?","answer":"The 1.5KE170CA-B is obsolete from Diodes Incorporated. Submit an RFQ for a firm offer with lot traceability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diodes-inc/1.5KE170CA-B","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diodes-inc/1.5KE170CA-B when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-19T21:33:44.139Z","lastPublished":"2026-07-19T21:33:44.139Z","indexable":true}}