{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"P6KE440ARL","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"P6KE440ARL","canonicalUrl":"https://icboms.com/stmicroelectronics/P6KE440ARL","factsUrl":"https://icboms.com/api/mcp/products/P6KE440ARL","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics P6KE series, P6KE440ARL, Zener TVS diode, 600W peak pulse power, 376V standoff voltage, 418V breakdown, 776V clamping, DO-204AC (DO-15) axial package, through-hole mount.","salesMarkdown":"## Zener TVS for 376V rail protection The STMicroelectronics P6KE440ARL is a 600W Zener transient voltage suppressor from the P6KE series, designed to clamp overvoltage transients on DC power rails and signal lines operating at up to 376V continuous. It is a unidirectional device in a DO-204AC (DO-15) axial-lead through-hole package, rated for general-purpose surge protection where a single channel is sufficient. ## Voltage window and clamping behaviour The reverse standoff voltage of 376V is the maximum DC or peak AC voltage the protected line can carry without the device conducting appreciably. Breakdown occurs at a minimum of 418V, and the clamping voltage is held to a maximum of 776V at the rated peak pulse current of 5.2A (8/20µs waveform). This clamping ratio — 776V at 5.2A versus a 376V standoff — is typical for a Zener TVS; the design margin between the protected circuit's absolute maximum rating and the clamping voltage must be at least 776V to avoid damage during a surge event. ## Power handling and surge capability Rated at 600W peak pulse power for a 10/1000µs waveform, the device can absorb substantial transient energy. The 5.2A peak pulse current (8/20µs) is the current the part can safely shunt while clamping at 776V. No power line protection feature is included — this is a basic TVS diode, not a filtered or coordinated protector. Capacitance is 350pF at 1MHz, which may affect high-speed signal lines; for data-line protection, a lower-capacitance TVS or a steering-diode array is preferred. ## Package and assembly note The DO-15 axial package requires through-hole mounting with 0.040-inch (1.0 mm) diameter holes on a 0.300-inch lead spacing. Wave soldering or hand soldering is typical; the leads are tin-plated and solderable per standard IPC J-STD-001 profiles. ## Lifecycle and sourcing Cut Tape (CT) is also available for prototype or low-volume builds.","metaTitle":"STMicroelectronics P6KE440ARL Zener TVS, 600W, DO-15","metaDescription":"STMicroelectronics P6KE440ARL Zener TVS diode, 376V standoff, 600W peak pulse, DO-15 axial.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"STMicroelectronics","Type":"Zener","Series":"P6KE, TRANSIL™","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-204AC, DO-15, Axial","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"600W","Base Product Number":"P6KE440","Operating Temperature":"-","Power Line Protection":"No","Capacitance @ Frequency":"350pF @ 1MHz","Supplier Device Package":"DO-15 (DO-204AC)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"418V","Voltage - Clamping (Max) @ Ipp":"776V","Voltage - Reverse Standoff (Typ)":"376V","Current - Peak Pulse (10/1000µs)":"5.2A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6200","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d21127580ed2e5c86eab4a11f0f1e77c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can P6KE440ARL replace P6KE440A?","answer":"Yes, the die and electrical ratings are identical. The only difference is the packaging: P6KE440ARL ships in Tape & Reel, while P6KE440A typically ships in bulk or tube. Both are DO-15 axial, same voltage and power ratings."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/P6KE440ARL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/P6KE440ARL when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T16:25:14.523Z","lastPublished":"2026-07-16T16:25:14.523Z","indexable":true}}