{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VIPER17HN","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"VIPER17HN","canonicalUrl":"https://icboms.com/stmicroelectronics/VIPER17HN","factsUrl":"https://icboms.com/api/mcp/products/VIPER17HN","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics VIPer™ plus series, VIPER17HN, offline flyback switcher, 10 W output, 800 V breakdown, 115 kHz fixed switching frequency, 8-DIP through-hole package, Active production.","salesMarkdown":"## 10 W flyback with an 800 V internal MOSFET The VIPER17HN is an offline flyback converter from ST's VIPer™ plus family, integrating an 800 V power MOSFET and a 115 kHz fixed-frequency PWM controller in a single 8-DIP through-hole package. It delivers up to 10 W of isolated output power — enough for auxiliary supplies in appliance, industrial, or IoT gateway power stages. The 800 V breakdown voltage gives headroom for universal AC input without an external clamping circuit, simplifying the primary-side layout. ## Sizing the supply around the 10 W ceiling The 10 W power rating is the continuous output capability at the nominal input voltage and ambient temperature — actual deliverable power depends on the transformer design, heatsinking, and the 70% maximum duty cycle. The 8.5 V to 23.5 V Vcc range allows the IC to run directly from an auxiliary winding or a small bias supply, and the 14 V start-up threshold ensures clean turn-on without external start-up resistors. Fault protection includes current limiting, over-temperature shutdown, and over-voltage lockout, which together prevent the supply from running into destructive failure modes during a load fault or a transformer saturation event. It is ROHS3 compliant and supplied in a standard Tube — the 8-DIP (0.300\", 7.62 mm) through-hole package is a common footprint that can be hand-soldered or wave-soldered without reflow profile concerns.","metaTitle":"VIPER17HN STMicroelectronics Offline Flyback Switch 10 W","metaDescription":"ST VIPER17HN offline flyback switcher: 10 W output, 800 V breakdown, 115 kHz fixed freq, Active production.","metaKeywords":null},"attributes":{"series":"VIPer™ plus","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"STMicroelectronics","Series":"VIPer™ plus","Package":"Tube","Topology":"Flyback","Duty Cycle":"70%","Mounting Type":"Through Hole","Power (Watts)":"10 W","Package / Case":"8-DIP (0.300\\\", 7.62mm), 7 Leads","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"-","Fault Protection":"Current Limiting, Over Temperature, Over Voltage","Output Isolation":"Isolated","Internal Switch(s)":"Yes","Voltage - Start Up":"14 V","Base Product Number":"VIPER17","Voltage - Breakdown":"800V","Frequency - Switching":"115kHz","Operating Temperature":"-40°C~150°C(TJ)","Supplier Device Package":"8-DIP","Voltage - Supply (Vcc/Vdd)":"8.5V ~ 23.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2900","priceTiers":[{"qty":1,"price":"$1.29000","currency":"USD"},{"qty":10,"price":"$1.14900","currency":"USD"},{"qty":25,"price":"$1.09040","currency":"USD"},{"qty":100,"price":"$0.89570","currency":"USD"},{"qty":250,"price":"$0.83732","currency":"USD"},{"qty":500,"price":"$0.73994","currency":"USD"},{"qty":1000,"price":"$0.64295","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/0a971b40364933b9fa34cd604a963123.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/VIPER17HN/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum power output of VIPER17HN?","answer":"The datasheet specifies 10 W continuous output power in a flyback topology. The actual power you can extract depends on the transformer design, ambient temperature, and heatsinking — the 70% duty cycle limit and the 150°C junction temperature ceiling are the practical boundaries."},{"question":"Does VIPER17HN support a 12 V output?","answer":"Yes — the output voltage is set by the transformer turns ratio and the feedback loop, not by the IC itself. The 8.5 V to 23.5 V Vcc range and the 14 V start-up threshold are compatible with a 12 V output rail, as long as the bias winding voltage stays within the Vcc limits."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/VIPER17HN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/VIPER17HN 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}}