{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE56CARL","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"1.5KE56CARL","canonicalUrl":"https://icboms.com/stmicroelectronics/1.5KE56CARL","factsUrl":"https://icboms.com/api/mcp/products/1.5KE56CARL","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics 1.5KE56CARL, TRANSIL™ series, bidirectional TVS Zener, 1500W peak pulse power, 53.2V breakdown, 100V clamping, DO-201AA axial package.","salesMarkdown":"## 1500 W surge clamp for 48 V rails It delivers 1500 W of peak pulse power in a standard 10/1000 µs waveform, with a reverse standoff voltage of 47.8 V and a minimum breakdown of 53.2 V. When the surge current hits, the clamping voltage holds at 100 V maximum, shunting up to 100 A (8/20 µs) away from the protected circuit. The DO-201AA axial-lead package suits through-hole mounting on boards where a high-energy pulse needs a rugged, solderable joint. The 47.8 V reverse standoff voltage means this TVS does not conduct at normal 48 V bus levels, so it adds no leakage on a powered rail. The 53.2 V minimum breakdown sets the threshold where clamping begins — a transient that exceeds this voltage triggers the avalanche. The 100 V clamping maximum at peak pulse current defines the worst-case voltage the downstream components must survive; if the load's absolute maximum rating is below 100 V, this part provides a hard clamp. The 1500 W rating (10/1000 µs) tells you the energy-handling capacity for a single surge event — enough for a lightning-induced transient on an outdoor telecom line or an inductive kick from a motor drive. The bidirectional construction (single device) protects against both positive and negative spikes, saving a diode bridge in AC-coupled or bipolar signal paths. The DO-201AA (DO-27) axial-lead package is a through-hole form factor with a body diameter sized for the 1500 W dissipation. It solders into a 1.1 mm diameter hole on the PCB; the leads are tin-plated and compatible with standard wave-solder profiles. No special footprint beyond the two-hole pattern is needed, and the part's MSL is not listed — but given the axial construction and plated leads, moisture sensitivity is not a concern for this package class. The leads are long enough for hand-replacement in repair scenarios, though the thermal mass means a soldering iron with a wide tip and good heat transfer is recommended.","metaTitle":"1.5KE56CARL TRANSIL™ TVS, 1500W Bidirectional, DO-201","metaDescription":"STMicroelectronics 1.5KE56CARL bidirectional TVS diode, 1500W peak pulse, 53.2V breakdown, 100V clamping.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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":"Obsolete","lifecycle_stage":"eol_hot","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE","Operating Temperature":"-","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"900pF @ 1MHz","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"53.2V","Voltage - Clamping (Max) @ Ipp":"100V","Voltage - Reverse Standoff (Typ)":"47.8V","Current - Peak Pulse (10/1000µs)":"100A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/572f99690aeb2b0f302ed9cdcfd976ec.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE56CARL/alternatives.json"},"ai":{"faq":[{"question":"What are the specifications of 1.5KE56CARL?","answer":"It is a bidirectional Zener TVS diode from the TRANSIL™ 1.5KE series. Key specs: 1500 W peak pulse power, 47.8 V reverse standoff, 53.2 V minimum breakdown, 100 V maximum clamping, 100 A peak pulse current (8/20 µs), 900 pF capacitance at 1 MHz, DO-201AA axial package, through-hole mounting, general-purpose applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/1.5KE56CARL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/1.5KE56CARL when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}