{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"P6KE400ARL","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"P6KE400ARL","canonicalUrl":"https://icboms.com/stmicroelectronics/P6KE400ARL","factsUrl":"https://icboms.com/api/mcp/products/P6KE400ARL","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics P6KE400ARL, P6KE TRANSIL™ series, Zener TVS diode, 600W peak pulse power, 342V reverse standoff, 706V clamping, 1 channel unidirectional, DO-204AC (DO-15) axial through-hole package.","salesMarkdown":"The STMicroelectronics P6KE400ARL is a unidirectional Zener TVS diode from the P6KE TRANSIL™ series. It provides 600W peak pulse power (10/1000 µs waveform) with a reverse standoff voltage of 342V and a clamping voltage of 706V at the peak pulse current of 5.7A (8/20 µs). Packaged in a DO-15 (DO-204AC) axial leaded through-hole package, it is designed for general-purpose transient overvoltage protection in industrial power supplies, telecom line cards, and AC/DC converter input stages where a single unidirectional channel suffices. The 600W peak pulse power rating tells you the energy this part can absorb in a single surge event before failing. For a 342V standoff voltage, the device will not conduct appreciably below that level — it stays out of the way during normal operation. The 706V clamping voltage is the maximum voltage the load will see during a transient; if your downstream circuitry cannot tolerate that peak, you need a lower-clamp part or additional filtering. The 5.7A peak pulse current (8/20 µs) gives the surge current capability for short-duration events like lightning or inductive kickback. Capacitance is 360 pF at 1 MHz, which matters if you are protecting a high-speed data line — at 342V standoff this is a power-rail or slow-signal protector, not a high-frequency signal line clamp. ## Package and mounting — field-service friendly The DO-15 axial leaded package is a through-hole part. You can hand-solder it, replace it with basic tools, and visually confirm orientation (the cathode band is marked). No hot-air station needed. For a field-service repair technician, this is a swap-you-can-do-on-site part — just clip the leads, desolder the stubs, and insert the new one. The axial form factor also fits standard 0.4-inch lead spacing on perfboard or PCB.","metaTitle":"STMicroelectronics P6KE400ARL Zener TVS, 600W, DO-15 Axial","metaDescription":"ST P6KE400ARL Zener TVS diode, 600W peak pulse, 342V standoff, 706V clamp. DO-15 axial. Active.","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":"P6KE400","Operating Temperature":"-","Power Line Protection":"No","Capacitance @ Frequency":"360pF @ 1MHz","Supplier Device Package":"DO-15 (DO-204AC)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"380V","Voltage - Clamping (Max) @ Ipp":"706V","Voltage - Reverse Standoff (Typ)":"342V","Current - Peak Pulse (10/1000µs)":"5.7A (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":"What is the power rating of P6KE400ARL?","answer":"It is rated for 600W peak pulse power under a 10/1000 µs waveform. That is the energy it can absorb in a single surge event."},{"question":"What is the equivalent of P6KE400ARL?","answer":"The P6KE series includes other voltage variants (e.g., P6KE350A, P6KE440A) that share the same 600W power rating and DO-15 package but have different standoff and clamping voltages. For a direct pin-compatible replacement with the same 342V standoff, look for any P6KE400 variant — the suffix (ARL, A, etc.) mainly indicates packaging and lead finish, not electrical performance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/P6KE400ARL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/P6KE400ARL when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T14:54:40.993Z","lastPublished":"2026-07-16T14:54:40.993Z","indexable":true}}