{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE440CAHB0G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5KE440CAHB0G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE440CAHB0G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE440CAHB0G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor 1.5KE series bidirectional Zener TVS diode, 1500W peak pulse power, 376V reverse standoff voltage, 602V clamping, DO-201AA axial through-hole, AEC-Q101 automotive qualified.","salesMarkdown":"## 1.5 kW pulse rating in a DO-201 axial package The 1.5KE440CAHB0G: The 376 V reverse standoff voltage means it sits across a 375 VDC rail without conducting leakage; the 602 V clamping voltage at 2.5 A peak pulse current defines the maximum transient voltage the downstream circuitry sees before the diode clamps. ## Breakdown and clamping — the fit decision Minimum breakdown voltage is 418 V. For a 375 V nominal rail with 10 % tolerance, the rail sits at 412.5 V worst-case high — still below the 418 V breakdown threshold, so the diode stays off during normal operation. The 602 V maximum clamping voltage means a 2.5 A transient is clamped to 602 V, which is the voltage the downstream capacitor and rectifier must survive. The bidirectional configuration clamps both polarities with a single device — useful on AC-coupled data lines or DC rails where reverse-polarity transients are possible. Power line protection is marked as 'No', meaning this is a signal- or DC-rail protector, not a mains-side suppressor. ## Package and board integration Through-hole DO-201AA (DO-27) axial package with the cathode band marking the bidirectional orientation — the band is decorative on a bidirectional device, but the lead spacing matches standard 0.4-inch pitch PCB layouts. The DO-201 body is 9.1 mm long, 5.3 mm diameter; the leads are tin-plated copper, solderable per JEDEC J-STD-002. The bulk packaging means parts ship loose in an anti-static bag, not taped and reeled — factor manual insertion or a tube feeder into the assembly line. No moisture sensitivity level (MSL) rating is needed for hermetic glass-passivated junction TVS diodes in this package. ## Active production — sourcing posture Lifecycle status is Active — Taiwan Semiconductor continues to manufacture this part. The base product number 1.5KE440 covers the full family; the 'CAHB0G' suffix denotes the bidirectional, automotive-grade, bulk-pack variant.","metaTitle":"1.5KE440CAHB0G TVS Diode, 1.5kW, 376V Standoff, DO-201","metaDescription":"Taiwan Semiconductor 1.5KE440CAHB0G bidirectional Zener TVS, 1500W peak pulse, 376V reverse standoff, 602V clamp, AEC-Q101 automotive grade.","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","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)":"418V","Voltage - Clamping (Max) @ Ipp":"602V","Voltage - Reverse Standoff (Typ)":"376V","Current - Peak Pulse (10/1000µs)":"2.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3688","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a688563676897fea683fa9d5a5542f4e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Taiwan Semiconductor provide for 1.5KE440CAHB0G?","answer":"The part carries AEC-Q101 automotive qualification, which includes the full PPAP documentation package — test data, reliability reports, and a PCN notification process. RoHS and REACH compliance is standard for Taiwan Semiconductor's 1.5KE series; the specific compliance certificates are available on request at RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE440CAHB0G","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/1.5KE440CAHB0G 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}}