{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE440CH","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5KE440CH","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE440CH","factsUrl":"https://icboms.com/api/mcp/products/1.5KE440CH","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor 1.5KE series bidirectional TVS diode, 1.5KE440CH, 1500W peak pulse power, 356V reverse standoff, 631V clamping, DO-201 axial, AEC-Q101 automotive grade.","salesMarkdown":"## 1.5 kW bidirectional TVS for 356 V rails The 1.5KE440CH: Its 356 V reverse standoff voltage and 631 V clamping point make it a fit for protecting 380 VDC bus rails or 277 VAC line-to-ground circuits against transient overvoltage events. AEC-Q101 qualification confirms the device meets automotive-grade stress and reliability screening — junction temperature range from -55°C to 175°C covers under-hood and engine-bay thermal profiles without derating the 2.4 A peak pulse current. ## Clamping voltage and breakdown margin Breakdown occurs at 396 V minimum, giving a 40 V margin above the 356 V standoff before the device starts conducting leakage current. The 631 V maximum clamping voltage limits the let-through energy to the downstream silicon — a 380 V rail sees the spike clipped to under 1.7× the nominal bus voltage. Single bidirectional channel means one DO-201 axial package replaces two series-back-to-back unidirectional TVS diodes, saving board space and reducing part count on the BOM. ## Active production, AEC-Q101 traceability AEC-Q101 qualification means the lot is traceable to a PPAP-compliant manufacturing flow.","metaTitle":"1.5KE440CH TVS Diode, 1.5kW, 356V, DO-201, AEC-Q101","metaDescription":"Taiwan Semiconductor 1.5KE440CH bidirectional TVS, 1500W peak pulse, 356V standoff, AEC-Q101 qualified. Active production, sourced to order. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Taiwan Semiconductor Corporation","Type":"Zener","Grade":"Automotive","Series":"1.5KE","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Through Hole","Qualification":"AEC-Q101","Package / Case":"DO-201AA, DO-27, Axial","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE440","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"396V","Voltage - Clamping (Max) @ Ipp":"631V","Voltage - Reverse Standoff (Typ)":"356V","Current - Peak Pulse (10/1000µs)":"2.4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3688","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9744e1a6c34bdbda9db61a737714d6ba.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is 1.5KE440CH's listed grade and qualification?","answer":"The grade is Automotive with AEC-Q101 qualification."},{"question":"What is the peak pulse power rating and clamping voltage?","answer":"Peak pulse power is 1500 W (1.5 kW) for a 10/1000 µs waveform."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE440CH","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/taiwan-semiconductor-corporation/1.5KE440CH 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}}