{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE200ARL","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"1.5KE200ARL","canonicalUrl":"https://icboms.com/stmicroelectronics/1.5KE200ARL","factsUrl":"https://icboms.com/api/mcp/products/1.5KE200ARL","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics 1.5KE200ARL, TRANSIL™ TVS diode, 1500W peak pulse power, 190V breakdown, 353V clamping, 28A Ipp, unidirectional, DO-201 axial, through hole.","salesMarkdown":"Its 1500W peak pulse power rating (10/1000µs waveform) tells you the energy it can absorb in a single surge event — enough for secondary protection on a 48V telecom bus or a 170V DC link. The 190V minimum breakdown voltage is the threshold where it starts conducting; below that, the 171V reverse standoff voltage means it sits quietly on a nominal 170V rail without leakage issues. ## Clamping voltage and peak current — sizing the protection That clamping voltage is the number you compare against the absolute maximum rating of the downstream silicon — if your DC-DC converter or IC can only take 300V, this part won't protect it; you need a lower-voltage device. The 28A Ipp rating is the surge current the part can handle; derate it for higher ambient temperatures per the thermal curve in the datasheet. Capacitance is 675pF at 1MHz, which is fine for DC or low-frequency signal lines but too high for high-speed data like Ethernet or USB 2.0. ## DO-201 axial — through-hole fit and thermal path Housed in a DO-201AA / DO-27 axial leaded package, this part is through-hole mounted — it's a direct fit for boards that already have a 1.5KE footprint or where you want the mechanical strength of a leaded part. The axial leads carry the surge current and the heat is sunk through the leads into the PCB pads; keep the trace width generous to the pads to minimize inductance and help with thermal spreading. No power line protection (no internal TVS for AC mains) — this is a DC-rail or low-frequency signal clamp. ## Active and available — sourcing posture No last-time-buy or obsolescence risk to plan around.","metaTitle":"1.5KE200ARL TVS Diode, 1500W, 190V Breakdown, DO-201","metaDescription":"STMicroelectronics 1.5KE200ARL TRANSIL™ TVS diode, 1500W peak pulse power, 190V min breakdown, 353V clamping, unidirectional, DO-201 axial.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"STMicroelectronics","Type":"Zener","Series":"1.5KE, TRANSIL™","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE200","Operating Temperature":"-","Power Line Protection":"No","Capacitance @ Frequency":"675pF @ 1MHz","Supplier Device Package":"DO-201","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"190V","Voltage - Clamping (Max) @ Ipp":"353V","Voltage - Reverse Standoff (Typ)":"171V","Current - Peak Pulse (10/1000µs)":"28A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3365","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/572f99690aeb2b0f302ed9cdcfd976ec.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE200ARL/alternatives.json"},"ai":{"faq":[{"question":"Is 1.5KE200ARL unidirectional or bidirectional?","answer":"It is a unidirectional device — one channel, anode and cathode polarity. Use it on DC rails where the transient is positive with respect to ground."},{"question":"What is the equivalent to 1.5KE200ARL?","answer":"Within the same 1.5KE family, the 1.5KE200A (without the 'RL' suffix) is functionally identical — same 190V breakdown, same 1500W rating, same DO-201 package. The 'RL' suffix denotes Tape & Reel packaging; the 'A' suffix indicates a 5% tolerance on breakdown voltage. For a bidirectional version, look at the 1.5KE200CA."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/1.5KE200ARL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/1.5KE200ARL 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}}