{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM6T39AY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM6T39AY","canonicalUrl":"https://icboms.com/stmicroelectronics/SM6T39AY","factsUrl":"https://icboms.com/api/mcp/products/SM6T39AY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM6T39AY, Automotive AEC-Q101, SM6TY, TRANSIL™, Zener, 600W, DO-214AA, SMB, Tape & Reel (TR); Cut Tape (CT).","salesMarkdown":"It is designed to protect sensitive downstream electronics from voltage transients on 24 V or 33 V nominal rails, with a reverse standoff voltage of 33.3 V and a maximum clamping voltage of 69.7 V at the peak pulse current. Its single unidirectional channel in a surface-mount DO-214AA (SMB) package suits automated assembly lines and high-volume production. ## 33.3 V standoff — what it protects With a reverse standoff voltage (VRWM) of 33.3 V, this diode is intended for 24 V automotive systems or 33 V DC rails where normal operating voltage stays below that threshold. The breakdown voltage range starts at 37.1 V, so the part begins conducting only when the line exceeds that level, leaving the protected bus undisturbed during normal operation. The clamping voltage of 69.7 V at the rated pulse current (57 A for an 8/20 µs waveform) defines the maximum voltage the downstream circuit will see during a surge event.","metaTitle":"STMicroelectronics SM6T39AY TVS Diode, 600W, AEC-Q101","metaDescription":"STMicroelectronics SM6T39AY automotive AEC-Q101 Zener TVS diode. 33.3V standoff, 69.7V clamping, 600W peak pulse. DO-214AA SMB. Active, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"STMicroelectronics","Type":"Zener","Series":"Automotive, AEC-Q101, SM6TY, TRANSIL™","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"Automotive","Mounting Type":"Surface Mount","Package / Case":"DO-214AA, SMB","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"600W","Base Product Number":"SM6T39","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMB (DO-214AA)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"37.1V","Voltage - Clamping (Max) @ Ipp":"69.7V","Voltage - Reverse Standoff (Typ)":"33.3V","Current - Peak Pulse (10/1000µs)":"57A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3a95ac6513bab2f04fd61565540cbe6f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SM6T39AY/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the SM6T39AY and get a price?","answer":"The SM6T39AY is available to order through independent distribution. Submit an RFQ to receive a current price quote and availability confirmation — no static list price is published here."},{"question":"Is the SM6T39AY automotive AEC-Q101 qualified?","answer":"Yes, the SM6T39AY is part of the Automotive, AEC-Q101, SM6TY, TRANSIL™ series, confirming AEC-Q101 qualification for automotive applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM6T39AY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM6T39AY 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}}