{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE56CAHB0G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5KE56CAHB0G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE56CAHB0G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE56CAHB0G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor Corporation 1.5KE series bidirectional TVS diode, 1.5KE56CAHB0G, 1500W peak pulse power, 47.8V reverse standoff, 77V clamping, DO-201 axial, AEC-Q101 automotive grade.","salesMarkdown":"## Parametric fit for 48V bus protection The 1.5KE56CAHB0G: The 47.8V reverse standoff is the working voltage — a 48V nominal DC bus (like an automotive 48V mild-hybrid rail or a telecom -48V supply) sits below this threshold, so the TVS draws negligible leakage in normal operation. Breakdown triggers at 53.2V minimum, giving a 5.4V guard band before the device starts conducting. Clamping at 77V means the protected circuit sees no more than 77V across the terminals during a 20A surge. For a downstream DC-DC converter rated at 80V abs-max, this 3V margin is tight — verify the converter's avalanche rating and input capacitance, which absorbs part of the surge energy before the TVS clamps. The DO-201 axial package is a through-hole leaded form factor. The 0.042-inch diameter leads solder into plated through-holes on a standard PCB; the body length is about 9.1 mm. Bulk packaging means loose tubes or trays — no tape-and-reel, so hand-placement or tube-fed insertion is the assembly method. ## Sourcing and lifecycle posture Active lifecycle status — Taiwan Semiconductor still produces this part. The 1.5KE series is a standard JEDEC-registered TVS family with multiple second-source suppliers (Littlefuse, Vishay, ON Semiconductor all make 1.5KE56CA equivalents). The AEC-Q101 qualification narrows the cross-reference field to automotive-grade variants only — verify the suffix (HB0G is TSC's automotive code) when substituting.","metaTitle":"1.5KE56CAHB0G TVS Diode, 1500W, Bidirectional, DO-201","metaDescription":"Taiwan Semiconductor 1.5KE56CAHB0G bidirectional TVS diode, 1500W peak pulse, 47.8V standoff, AEC-Q101 automotive grade. Active production, sourced to order.","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":"1.5KE56","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"53.2V","Voltage - Clamping (Max) @ Ipp":"77V","Voltage - Reverse Standoff (Typ)":"47.8V","Current - Peak Pulse (10/1000µs)":"20A"}},"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":"What is the closest pin-compatible alternative to 1.5KE56CAHB0G?","answer":"Any 1.5KE56CA bidirectional TVS in a DO-201 package from a major brand (Littlefuse, Vishay, ON Semiconductor) is functionally equivalent. The key difference is the AEC-Q101 automotive qualification — the HB0G suffix on the TSC part explicitly grades it for automotive use. Non-automotive 1.5KE56CA parts lack this qualification and may not meet the same reliability screening."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE56CAHB0G","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/1.5KE56CAHB0G 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}}