{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SM6T16V5AY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SM6T16V5AY","canonicalUrl":"https://icboms.com/stmicroelectronics/SM6T16V5AY","factsUrl":"https://icboms.com/api/mcp/products/SM6T16V5AY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SM6T16V5AY, Zener TVS, 600W Peak Pulse Power, 14.1V Reverse Standoff, 29V Clamping, Unidirectional, DO-214AA (SMB), AEC-Q101 Qualified.","salesMarkdown":"It is designed to protect a 14.1 V DC rail — typical of an automotive 12 V system — from transients up to 29 V clamping, with a peak pulse current capability of 136 A for an 8/20 µs waveform. The AEC-Q101 qualification and -55°C to 150°C operating junction temperature range suit it for under-hood and chassis-domain deployment where voltage spikes from load dump, alternator field decay, or inductive switching are a given. ## Clamping voltage and standoff — sizing the protection margin The reverse standoff voltage of 14.1 V means the diode stays off under normal battery voltage (up to ~14 V in a charged system). That 29 V ceiling is the number the downstream circuitry must survive — the designer checks the absolute-maximum rating of the ECU's input capacitors, the DC-DC converter's input range, and the microcontroller's VDD pin against this figure. A 600 W rating (10/1000 µs waveform) gives the headroom for repetitive load-dump events common in heavy truck and agricultural equipment applications. ## AEC-Q101 and the SM6TY series — what the suffix means The 'AY' suffix on the SM6T16V5AY designates the automotive-grade variant of the SM6T family, with full AEC-Q101 qualification and production-part-approval process (PPAP) support. The base part SM6T16V5 is the commercial-grade sibling, identical in electrical performance but lacking the extended temperature cycling and high-temperature reverse-bias (HTRB) testing required for automotive tier-1 submission. For a BOM destined for a passenger-vehicle ECU or a commercial-vehicle telematic module, the 'AY' suffix is the correct call — the commercial part cannot be substituted without requalification. ## Package and footprint — DO-214AA (SMB) The SMB (DO-214AA) package is a JEDEC-standard surface-mount outline shared with many 600 W TVS diodes from STMicroelectronics, Littelfuse, and onsemi. The solder pad footprint is common across suppliers, which simplifies second-source qualification.","metaTitle":"STMicroelectronics SM6T16V5AY Zener TVS, 600W, AEC-Q101","metaDescription":"STMicroelectronics SM6T16V5AY is a 600W Zener TVS diode in DO-214AA (SMB), AEC-Q101 qualified, with 14.1V reverse standoff and 29V clamping.","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":"SM6T16V5","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)":"15.7V","Voltage - Clamping (Max) @ Ipp":"29V","Voltage - Reverse Standoff (Typ)":"14.1V","Current - Peak Pulse (10/1000µs)":"136A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1650","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3a95ac6513bab2f04fd61565540cbe6f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SM6T16V5AY/alternatives.json"},"ai":{"faq":[{"question":"Is SM6T16V5AY AEC-Q101 qualified?","answer":"Yes. The SM6T16V5AY is part of the Automotive, AEC-Q101, SM6TY series, which means it has passed the AEC-Q101 stress tests for automotive-grade discrete semiconductors."},{"question":"What is the peak pulse power rating of SM6T16V5AY?","answer":"The SM6T16V5AY is rated for 600 W of peak pulse power, measured with a 10/1000 µs waveform. The peak pulse current is 136 A for an 8/20 µs waveform."},{"question":"Where can I buy SM6T16V5AY?","answer":"The SM6T16V5AY is available through independent distribution. Submit an RFQ for current availability and pricing — the part is quoted to order against your BOM line."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SM6T16V5AY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SM6T16V5AY 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}}