{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE400A-HF","brand":"Comchip Technology","brandSlug":"comchip-technology","productSlug":"1.5KE400A-HF","canonicalUrl":"https://icboms.com/comchip-technology/1.5KE400A-HF","factsUrl":"https://icboms.com/api/mcp/products/1.5KE400A-HF","rawCanonicalId":null},"summary":{"shortDescription":"Comchip Technology 1.5KE-HF series, Zener TVS diode, unidirectional, 1.5kW peak pulse, 342V standoff, 548V clamp, DO-201AA axial, through-hole.","salesMarkdown":"## 1.5 kW peak pulse, 342 V standoff — the clamping envelope that protects 400 V DC rails The 1.5KE400A-HF: Its 342 V reverse standoff voltage and 548 V maximum clamping at 2.72 A peak pulse current define the protection window for 400 V DC bus rails, industrial power supplies, and telecom rectifier outputs. The 380 V minimum breakdown voltage ensures the device starts conducting before the rail exceeds the downstream components' absolute maximum rating, while the 548 V clamp holds the transient below the typical 600 V MOSFET avalanche threshold. ## DO-201 axial package — through-hole mounting for high-surge board positions The operating junction temperature range spans -55°C to 150°C, covering industrial enclosures and outdoor telecom cabinets without derating at the hot end. Power line protection is not supported — this is a general-purpose transient suppressor, not a dedicated AC mains protector. For line-to-line or line-to-ground clamping on 240 VAC or 480 VAC circuits, select a TVS rated for continuous AC voltage stress.","metaTitle":"Comchip 1.5KE400A-HF TVS Diode, 1.5kW, 548V Clamp","metaDescription":"1.5KE400A-HF unidirectional TVS, 1500W peak pulse, 342V standoff, 548V clamp. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Comchip Technology","Type":"Zener","Series":"1.5KE-HF","Package":"Tape & Box (TB)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE","Operating Temperature":"-55°C ~ 150°C (TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"380V","Voltage - Clamping (Max) @ Ipp":"548V","Voltage - Reverse Standoff (Typ)":"342V","Current - Peak Pulse (10/1000µs)":"2.72A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6297","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9f43de99c350433b7129996d8f2ed805.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the 1.5KE400A-HF suitable for 400 V DC bus protection?","answer":"Yes. With a 342 V reverse standoff voltage and a 380 V minimum breakdown, it triggers before a 400 V nominal bus rises into the 500–600 V range where downstream MOSFETs or IGBTs would avalanche. The 548 V clamp keeps the transient below typical 600 V device ratings."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/comchip-technology/1.5KE400A-HF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/comchip-technology/1.5KE400A-HF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}