{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"P6KE400CA","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"P6KE400CA","canonicalUrl":"https://icboms.com/stmicroelectronics/P6KE400CA","factsUrl":"https://icboms.com/api/mcp/products/P6KE400CA","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics P6KE400CA TRANSIL™ bidirectional TVS diode, 600W peak pulse power, 342V reverse standoff, 706V clamping, DO-15 axial package, through-hole mount.","salesMarkdown":"## 342V standoff — this is a 342V nominal line protector The P6KE400CA is a bidirectional TRANSIL™ TVS diode from STMicroelectronics, part of the P6KE series. Its 342V reverse standoff voltage means it sits across a 342V DC or AC-rms nominal rail and stays out of the way until a transient hits. The 600W peak pulse power rating tells you how much transient energy it can absorb in a 10/1000 µs waveform — enough for industrial power supplies, motor drives, and AC line protection where the working voltage is in the 300-400V range. ## 706V clamp — what the downstream gear must survive When the transient fires, the diode clamps at 706V maximum at the peak pulse current of 5.7A. That clamp voltage is the ceiling your downstream rectifiers, capacitors, and switching transistors need to handle without failing. The bidirectional channel means one part handles both positive and negative surges — useful on AC lines or floating DC rails where polarity isn't fixed. ## DO-15 axial — field-swappable with a soldering iron The part comes in a DO-204AC, DO-15 axial package with through-hole mounting. That axial lead form is a field-service win — you can pull the old part and solder in a replacement with a standard iron, no hot-air station needed. Mark the orientation band: the cathode band is present even on a bidirectional part, but since it's bidirectional the polarity doesn't matter for circuit function. It ships in cut tape or tape and box, so small-quantity replacements are easy to source. ## Active production — no obsolescence worry No last-time-buy, no replacement hunt. It's a current-production part from STMicroelectronics, quoted to order against your BOM quantity. The base product number is P6KE400, and the full suffix 'CA' denotes the bidirectional version — the unidirectional sibling would be 'A' or 'C' depending on the variant.","metaTitle":"STMicroelectronics P6KE400CA TVS Diode, 600W, 342V Standoff","metaDescription":"P6KE400CA bidirectional TVS diode from STMicroelectronics. 600W peak pulse power, 342V reverse standoff, 706V clamp. DO-15 axial package. RoHS compliant.","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":"Cut Tape (CT); Tape & Box (TB)","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","Bidirectional Channels":"1","Capacitance @ Frequency":"180pF @ 1MHz","Supplier Device Package":"DO-15 (DO-204AC)","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":"$0.5800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d21127580ed2e5c86eab4a11f0f1e77c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can P6KE400CA be used for 24V circuit protection?","answer":"No — the 342V reverse standoff voltage is far above a 24V rail. For 24V protection you need a TVS with a standoff voltage around 24-30V, like the P6KE24A or P6KE30CA in the same family. The P6KE400CA is designed for 342V nominal lines such as three-phase rectified DC or 240V AC mains."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/P6KE400CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/P6KE400CA when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T15:56:33.532Z","lastPublished":"2026-07-16T15:56:33.532Z","indexable":true}}