{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE400AHB0G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5KE400AHB0G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE400AHB0G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE400AHB0G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor 1.5KE series Automotive Zener TVS diode, 1.5KE400AHB0G, 1500 W peak pulse, 342 V standoff, 548 V clamp, DO-201AA (DO-27) axial, AEC-Q101, Bulk.","salesMarkdown":"## 1.5 kW automotive TVS in DO-201 axial The 1.5KE400AHB0G is a 1500 W peak-pulse-power Zener TVS diode from Taiwan Semiconductor, qualified to AEC-Q101 for automotive use. It clamps transients on a 342 V nominal rail to 548 V at 2.8 A (10/1000 µs waveform). The DO-201 (DO-27) axial-lead package suits through-hole assembly in high-reliability power supplies and ECU input protection. ## Clamping voltage and surge current for the rail Reverse standoff is 342 V — the TVS draws negligible leakage below that voltage, so it sits across a 342 V DC bus or a 240 VAC rectified line without loading the rail. Breakdown triggers at 380 V min, clamping at 548 V max with a 2.8 A peak pulse current. The 1500 W rating is the product of clamp voltage and peak current at the 10/1000 µs test waveform; actual energy capability depends on pulse duration and duty cycle. Single unidirectional channel — for AC lines or bipolar rails, two devices back-to-back are needed. The junction operates from -55 °C to 175 °C, covering the full automotive temperature envelope underhood. DO-201AA (DO-27) axial-lead package, 0.052-inch (1.3 mm) diameter leads. The through-hole body requires a 1.1 mm drill hole per lead; the cathode band identifies polarity. The axial format is hand-solder or wave-solder compatible and fits existing TVS footprints in power supply and motor-drive circuits.","metaTitle":"1.5KE400AHB0G TVS Diode, 1.5 kW, DO-201, AEC-Q101","metaDescription":"1.5KE400AHB0G from Taiwan Semiconductor is an automotive-grade 1.5 kW TVS diode. 342 V standoff, 548 V clamp, DO-201 (DO-27) axial package. Active production.","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":"Bulk","Applications":"-","Mounting Type":"Through Hole","Qualification":"AEC-Q101","Package / Case":"DO-201AA, DO-27, Axial","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE400","Operating Temperature":"-55°C ~ 175°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)":"2.8A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5564","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a688563676897fea683fa9d5a5542f4e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the 1.5KE400AHB0G automotive qualified?","answer":"Yes, it is AEC-Q101 qualified, the automotive discrete semiconductor reliability standard."},{"question":"What package does the 1.5KE400AHB0G come in?","answer":"DO-201AA (DO-27) axial-lead through-hole package. The supplier device package is DO-201. It is supplied in bulk packaging."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE400AHB0G","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/1.5KE400AHB0G 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}}