{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE520A-G","brand":"Comchip Technology","brandSlug":"comchip-technology","productSlug":"1.5KE520A-G","canonicalUrl":"https://icboms.com/comchip-technology/1.5KE520A-G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE520A-G","rawCanonicalId":null},"summary":{"shortDescription":"Comchip Technology 1.5KE-G series Zener TVS diode, 1.5KE520A-G, 1500W peak pulse power, 444.6V reverse standoff, 717.6V clamp, DO-201AA axial through-hole.","salesMarkdown":"## What the clamp voltage and standoff actually mean for your rail The 1.5KE520A-G: It is designed to clamp voltage spikes, not to regulate a DC rail. The 444.6 V reverse standoff (working voltage) means the diode is effectively open below that level; the leakage current stays negligible in normal operation. When a transient exceeds 494 V (minimum breakdown), the device enters avalanche and clamps at 717.6 V maximum, shunting the surge current through the junction. This is a single-pulse rating — repetitive surge events require derating per the manufacturer's pulse derating curve. ## Package and board integration Housed in a DO-201AA (DO-27) axial-lead package with a DO-201 supplier device designation. Through-hole mounting with 0.96 mm (0.038 inch) lead diameter — fits standard 1.0 mm PCB holes. The axial body is 7.6 mm long; lead spacing is non-critical for hand or wave solder. The junction operates across -55°C to 150°C, covering industrial and some military temperature envelopes. ## Signal line protection, not mains The 1.5KE520A-G carries no power line protection rating — it is intended for general-purpose transient suppression on signal, data, or DC bus lines where the working voltage is 444.6 V or below. The single unidirectional channel protects one polarity rail; a bidirectional pair or bridge arrangement is needed for AC-coupled lines. Comchip Technology lists the 1.5KE520A-G as Active.","metaTitle":"1.5KE520A-G Comchip Zener TVS, 1500W, DO-201AA","metaDescription":"1.5KE520A-G Zener TVS diode, 1500W peak pulse, 444.6V standoff, 717.6V clamp. Active production. Sourced to order. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Comchip Technology","Type":"Zener","Series":"1.5KE-G","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":"1.5KE","Operating Temperature":"-55°C ~ 150°C (TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"494V","Voltage - Clamping (Max) @ Ipp":"717.6V","Voltage - Reverse Standoff (Typ)":"444.6V","Current - Peak Pulse (10/1000µs)":"2.09A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6297","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between a Zener TVS like the 1.5KE520A-G and a Zener regulator diode?","answer":"A Zener TVS is designed to avalanche at a precise voltage and survive high peak pulse currents for microseconds; it is not intended for continuous reverse-bias regulation. The 1.5KE520A-G clamps transients at 717.6 V max but would overheat under sustained DC reverse current."},{"question":"What compliance documentation does Comchip provide for the 1.5KE520A-G?","answer":"Comchip Technology typically provides RoHS and REACH compliance declarations for the 1.5KE-G series. Specific documentation (UL recognition, IEC certification) is not listed in the available product data and should be requested at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/comchip-technology/1.5KE520A-G","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/comchip-technology/1.5KE520A-G 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}}