{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE51CAHB0G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5KE51CAHB0G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE51CAHB0G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE51CAHB0G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor Corporation 1.5KE series Zener TVS diode, bidirectional, 1500W peak pulse power, 43.6V standoff, 70.1V clamping, DO-201AA through-hole, AEC-Q101 automotive grade.","salesMarkdown":"## Automotive-grade 1.5 kW TVS in a through-hole package The 1.5KE51CAHB0G: It clamps a transient at 70.1 V max while conducting 22 A peak pulse current, protecting a 43.6 V nominal rail from surges that exceed the breakdown threshold of 48.5 V min. Qualified to AEC-Q101, this part is intended for automotive electronics where the under-hood or chassis-mounted ECU sees repetitive load-dump and inductive-switching transients. ## What the clamping and standoff ratings mean for the BOM A 48 V nominal bus that sees 44 V during normal operation stays below this threshold; the TVS remains transparent until a surge drives the line above 48.5 V breakdown. At the 22 A peak pulse current (10/1000 µs), the clamping voltage is 70.1 V max. For a downstream device rated at 60 V abs-max, this clamp leaves 10 V of margin—enough to survive a single high-energy pulse without secondary protection. The 1500 W rating is the product of clamp voltage and peak current, so a shorter pulse (e.g. 8/20 µs) allows higher peak current before the die reaches its thermal limit. ## Through-hole DO-201 and board integration The DO-201AA (DO-27) axial-lead package is a standard through-hole form factor. It mounts into a 1.0 mm (0.040 inch) diameter plated-through hole on a PCB or terminal block; the lead bend radius should stay above 1.5 mm to avoid cracking the glass passivation at the body exit. The bulk packaging means the parts ship loose in a tube or bag—no reel, so pick-and-place requires manual or tube-fed insertion.","metaTitle":"1.5KE51CAHB0G TVS Diode, 1500W, Bidirectional, DO-201","metaDescription":"Taiwan Semiconductor 1.5KE51CAHB0G Zener TVS, 1500W peak pulse, 43.6V standoff, AEC-Q101 automotive grade. Active production, through-hole DO-201.","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":"1.5KE51","Operating Temperature":"-55°C ~ 175°C (TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Voltage - Breakdown (Min)":"48.5V","Voltage - Clamping (Max) @ Ipp":"70.1V","Voltage - Reverse Standoff (Typ)":"43.6V","Current - Peak Pulse (10/1000µs)":"22A"}},"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":"How can I get pricing and availability for 1.5KE51CAHB0G?","answer":"Submit an RFQ through this listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE51CAHB0G","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/1.5KE51CAHB0G 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}}