{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE51CA A0G","brand":"Taiwan Semiconductor Corporation","brandSlug":"taiwan-semiconductor-corporation","productSlug":"1.5KE51CA-A0G","canonicalUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE51CA-A0G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE51CA%20A0G","rawCanonicalId":null},"summary":{"shortDescription":"Taiwan Semiconductor Corporation 1.5KE series bidirectional TVS diode, Zener type, 1500W peak pulse power, 70.1V clamping, 22A IPP, DO-201AA axial, Tape & Box.","salesMarkdown":"## Protection window and surge capability The 1.5KE51CA A0G is a bidirectional Zener-type TVS diode — it clamps transients of either polarity, making it a single-component solution for AC signal lines or bipolar DC rails where a unidirectional part would need two devices back-to-back. The reverse standoff voltage of 43.6V means the protected rail can run at up to that voltage without the diode conducting leakage current in normal operation. The minimum breakdown voltage of 48.5V defines where clamping begins, and the maximum clamping voltage of 70.1V at 22A peak pulse current (10/1000µs waveform) sets the highest voltage the downstream circuitry sees during a surge event. ## Package, temperature range, and deployment context Housed in a DO-201AA axial-lead package (also known as DO-27), the 1.5KE51CA A0G is a through-hole part suited for point-to-point wiring or PCB mounting where the leads are formed and soldered into plated holes. The axial body handles the thermal pulse of a 1500W surge without exceeding the 175°C maximum junction temperature. Note that power line protection is marked as 'No' — this TVS is intended for signal and DC rail transient suppression, not for continuous AC mains overvoltage clamping where a varistor or higher-energy MOV would be specified. ## Sourcing and lifecycle posture The base product number 1.5KE51 identifies the voltage family; this specific suffix (CA) denotes bidirectional polarity, and the A0G suffix indicates the Tape & Box packaging format.","metaTitle":"1.5KE51CA A0G TVS Diode, 1500W, 70.1V Clamp, DO-201","metaDescription":"Taiwan Semiconductor 1.5KE51CA A0G bidirectional TVS diode, 1500W peak pulse power, 70.1V clamping, DO-201 axial. 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","Series":"1.5KE","Package":"Tape & Box (TB)","Applications":"General Purpose","Mounting Type":"Through Hole","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":"$1.2700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a688563676897fea683fa9d5a5542f4e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5KE51CA%20A0G/alternatives.json"},"ai":{"faq":[{"question":"How can I order 1.5KE51CA A0G or request a quote?","answer":"The 1.5KE51CA A0G is an active part from Taiwan Semiconductor Corporation and is available to order through independent distribution. Submit an RFQ with your target quantity and delivery timeline; pricing and lead time are confirmed at quote time."},{"question":"What is the difference between the 1.5KE51CA and a unidirectional 1.5KE51A variant?","answer":"The 'CA' suffix indicates bidirectional protection — a single device clamps transients of both polarities. The unidirectional 'A' variant protects only one polarity and has a lower clamping voltage for a given breakdown, but requires two devices back-to-back for AC or bipolar protection. The breakdown and standoff voltages are the same between the two."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/taiwan-semiconductor-corporation/1.5KE51CA-A0G","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/1.5KE51CA-A0G 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}}