{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE39A-TP","brand":"Micro Commercial Co","brandSlug":"micro-commercial-co","productSlug":"1.5KE39A-TP","canonicalUrl":"https://icboms.com/micro-commercial-co/1.5KE39A-TP","factsUrl":"https://icboms.com/api/mcp/products/1.5KE39A-TP","rawCanonicalId":null},"summary":{"shortDescription":"Micro Commercial Co 1.5KE39A-TP, unidirectional TVS Zener, 1500W peak pulse power, 33.3V reverse standoff, 53.9V clamp, DO-201AE axial through-hole.","salesMarkdown":"## Clamping voltage and the rail it protects The 1.5KE39A-TP is a 1500 W unidirectional TVS diode from Micro Commercial Co, built to clamp transients on a 33.3 V nominal rail. Its 37.1 V minimum breakdown ensures the device stays off the line during normal operation, while the 53.9 V maximum clamping voltage at peak pulse current (Ipp) limits the voltage the downstream circuitry sees during a surge event. This is a through-hole part in the DO-201AE axial package — a common footprint for industrial and telecom board-level protection where a soldered-in, replaceable device is preferred over a surface-mount option. ## What the ratings mean for the board The 33.3 V reverse standoff voltage (VRWM) is the rail voltage the TVS leaves undisturbed — a 24 V or 28 V supply bus, for example, sits well below this threshold. The 37.1 V breakdown (VBR) at 1 mA is the point where the device starts conducting; the 53.9 V clamp (VC) is the peak voltage the load sees during a 1500 W, 10/1000 µs surge. For a 24 V rail, this clamp margin (~2× the rail) is typical for protecting downstream DC-DC converters and ASICs rated at 60 V or higher. Power line protection is marked 'No' — this TVS is designed for signal or low-power supply rails, not for direct mains-voltage surge suppression. The single unidirectional channel suits DC rails where polarity is fixed; for AC or bidirectional protection, two devices back-to-back or a dedicated bidirectional part would be needed.","metaTitle":"1.5KE39A-TP TVS Diode, 1500W, 33.3V Standoff, DO-201AE","metaDescription":"1.5KE39A-TP 1500W unidirectional TVS, 33.3V reverse standoff, 53.9V clamp. Active production, through-hole DO-201AE. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Micro Commercial Co","Type":"Zener","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AE, Axial","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE39","Operating Temperature":"-55°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-201AE","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"37.1V","Voltage - Clamping (Max) @ Ipp":"53.9V","Voltage - Reverse Standoff (Typ)":"33.3V","Current - Peak Pulse (10/1000µs)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3013","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9600442db46e1e617905b120f9f9b3c6.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does 1.5KE39A-TP come in?","answer":"It is supplied in the DO-201AE axial through-hole package, available in Tape & Reel (TR) or Cut Tape (CT) options."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/micro-commercial-co/1.5KE39A-TP","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/micro-commercial-co/1.5KE39A-TP 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}}