{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE43CAHB0G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5KE43CAHB0G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE43CAHB0G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE43CAHB0G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor Corporation 1.5KE series bidirectional TVS diode, automotive grade, 1.5kW peak pulse power, 36.8V reverse standoff, 59.3V clamping, DO-201AA axial, bulk.","salesMarkdown":"The 1.5KE43CAHB0G: That means you can design it into a new automotive ECU or a replacement run without worrying about a forced migration mid-production. ## 1.5 kW peak pulse — what the 59.3 V clamp means for a 36.8 V rail The reverse standoff voltage is 36.8 V — the rail it protects should never exceed this in steady state. When a transient hits, the device clamps at 59.3 V maximum while conducting 26 A of peak pulse current. For a 36.8 V nominal supply — common in 36 V battery systems or 28 V regulated buses with headroom — the 59.3 V clamp sits well below typical downstream component abs-max ratings (often 60-65 V for automotive-rated ICs). The 26 A peak current capability means it absorbs the surge without the part self-destructing, provided the PCB trace and upstream fuse or PTC can deliver that current momentarily. ## AEC-Q101 — the under-hood temperature grade Qualified to AEC-Q101, the automotive discrete semiconductor stress-test qualification. It sits in a single hole on the PCB — the anode band marks the cathode end for the unidirectional variant; on this bidirectional part the band is still present but the device conducts symmetrically. Bulk packaging means it ships loose in a bag or tube, not taped and reeled — factor that into your pick-and-place setup if you are hand-inserting or using a tube feeder. ## Bidirectional — one part covers both polarities A single bidirectional channel means the same device clamps a positive or negative transient with symmetrical breakdown and clamping voltages. Power line protection is marked as 'No' — this is not a dedicated surge-rated device for AC mains or high-energy industrial busbars. It is designed for the transient energies typical of automotive 12/24/36 V systems, not for direct lightning or grid-coupled surges.","metaTitle":"1.5KE43CAHB0G TVS Diode, 1.5kW, 36.8V, DO-201","metaDescription":"Taiwan Semiconductor 1.5KE43CAHB0G bidirectional TVS, 1.5kW peak pulse, 36.8V standoff, AEC-Q101. 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":"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":"1.5KE43","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"40.9V","Voltage - Clamping (Max) @ Ipp":"59.3V","Voltage - Reverse Standoff (Typ)":"36.8V","Current - Peak Pulse (10/1000µs)":"26A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5792","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a688563676897fea683fa9d5a5542f4e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the 1.5KE43CAHB0G and get a price?","answer":"No stock-holding or lead-time claim is made here."},{"question":"What compliance documentation does Taiwan Semiconductor provide for the 1.5KE43CAHB0G?","answer":"The part carries AEC-Q101 automotive qualification. RoHS and REACH compliance status is standard for the 1.5KE series — confirm the specific declaration at RFQ if your compliance audit requires it. No UL or IEC certification is listed in the record."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE43CAHB0G","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/1.5KE43CAHB0G 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}}