{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"P6KE12ARL","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"P6KE12ARL","canonicalUrl":"https://icboms.com/stmicroelectronics/P6KE12ARL","factsUrl":"https://icboms.com/api/mcp/products/P6KE12ARL","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics P6KE12ARL, TRANSIL™ series, unidirectional TVS Zener, 600W peak pulse power, 10V reverse standoff, 21.7V clamp, 184A (8/20µs), DO-204AC (DO-15) axial through-hole.","salesMarkdown":"## What this TRANSIL™ TVS is and where it goes The STMicroelectronics P6KE12ARL is a unidirectional TRANSIL™ transient voltage suppressor from the P6KE series, rated for 600W peak pulse power. It is a Zener-type device designed to clamp transients on 10V DC rails — the reverse standoff voltage is 10V, breakdown triggers at 11.4V minimum, and clamping maxes out at 21.7V at the peak pulse current of 184A (tested with an 8/20µs waveform). This is not a standard Zener regulator; it is built for surge protection in general-purpose industrial, telecom, and power supply circuits where a through-hole axial package (DO-15 / DO-204AC) is acceptable. ## 600W pulse — what that means on a 10V rail The 600W peak pulse rating (10/1000µs waveform) tells you this part can absorb a decent transient without failing short. On a 10V supply bus, the 21.7V clamp gives about 2x headroom above the rail — tight enough to protect downstream 12V-rated silicon from most industrial surges, but not so tight that it triggers on normal ripple. The 2300pF capacitance at 1MHz matters if you put it on a data line; for a power rail it is irrelevant. The P6KE12ARL is listed as obsolete per the lifecycle record. There is no official ST-specified successor in the lifecycle record, so if you need a drop-in replacement, you are looking at the broader P6KE family or a pin-compatible TRANSIL™ from the same series with matching standoff and package. ## Swapping it in the field — what to know Through-hole axial DO-204AC package — easy to swap on site with basic hand tools. The banded end marks the cathode; orientation matters for a unidirectional part. No special ESD precautions beyond the usual. If you are replacing a blown part, check the board for collateral damage before powering up.","metaTitle":"STMicroelectronics P6KE12ARL TRANSIL™ TVS, 600W","metaDescription":"ST P6KE12ARL TRANSIL™ unidirectional TVS diode. 600W peak pulse, 10V standoff, 21.7V clamp. DO-15 axial. RFQ for availability.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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":"Obsolete","lifecycle_stage":"eol_hot","Power - Peak Pulse":"600W","Base Product Number":"P6KE","Operating Temperature":"-","Power Line Protection":"No","Capacitance @ Frequency":"2300pF @ 1MHz","Supplier Device Package":"DO-15 (DO-204AC)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"11.4V","Voltage - Clamping (Max) @ Ipp":"21.7V","Voltage - Reverse Standoff (Typ)":"10V","Current - Peak Pulse (10/1000µs)":"184A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d21127580ed2e5c86eab4a11f0f1e77c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is P6KE12ARL's listed type and series?","answer":"The P6KE12ARL is a Zener-type transient voltage suppressor in the TRANSIL™ series, part of the P6KE family. It is a unidirectional device."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/P6KE12ARL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/P6KE12ARL when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T14:58:56.014Z","lastPublished":"2026-07-16T14:58:56.014Z","indexable":true}}