{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VIPER15HD","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"VIPER15HD","canonicalUrl":"https://icboms.com/stmicroelectronics/VIPER15HD","factsUrl":"https://icboms.com/api/mcp/products/VIPER15HD","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics VIPer™ plus series, VIPER15HD, offline flyback switching regulator, 800V breakdown MOSFET, 10W output power, 225kHz switching frequency, 16-SOIC package, -40°C to 150°C junction temperature.","salesMarkdown":"## 800 V breakdown, 10 W flyback — the scorch-mark tells you The STMicroelectronics VIPER15HD is an offline flyback switching regulator from the VIPer™ plus family, integrating a 800 V avalanche-rugged power MOSFET and controller in a single 16-SOIC package. It delivers up to 10 W of isolated output power at a 225 kHz switching frequency, with built-in fault protection covering current limiting, over-temperature, and over-voltage conditions. The 800 V breakdown rating means this part handles universal AC input (85–265 VAC) with healthy margin, and the 225 kHz switching keeps the transformer small — useful when board space in a 10 W adapter or auxiliary supply is tight. ## Junction temperature and supply range The Vcc supply range of 8.5 V to 23.5 V and a 14 V start-up threshold are standard for offline flyback controllers. The output isolation is rated as isolated, confirming the transformer provides galvanic separation between primary and secondary — no optocoupler feedback is implied by this spec alone, but the flyback topology naturally supports it. ## Obsolete — the replacement question The VIPER15HD is listed as obsolete. If you are designing a new BOM, look at current VIPer™ plus family members in the same 16-SOIC footprint — the VIPer16HD or VIPer17HD share the same pinout and 800 V rating, though their protection feature sets differ. Confirm the exact pin compatibility against the datasheet before committing a replacement.","metaTitle":"VIPER15HD STMicro offline flyback switcher, 800V, 10W","metaDescription":"ST VIPER15HD offline flyback switching regulator, 800V breakdown, 10W output, 225kHz. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"STMicroelectronics","Series":"VIPer™ plus","Package":"Tube","Topology":"Flyback","Duty Cycle":"-","Mounting Type":"Surface Mount","Power (Watts)":"10 W","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Obsolete","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":"VIPER15","Voltage - Breakdown":"800V","Frequency - Switching":"225kHz","Operating Temperature":"-40°C ~ 150°C (TJ)","Supplier Device Package":"16-SO","Voltage - Supply (Vcc/Vdd)":"8.5V ~ 23.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/dc2f05ea71906ee9d7493b4157cfdc4a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/VIPER15HD/alternatives.json"},"ai":{"faq":[{"question":"Is the VIPER15HD obsolete?","answer":"Yes, the VIPER15HD carries an obsolete lifecycle status. It is no longer in active factory production."},{"question":"What is a good replacement for the VIPER15HD?","answer":"No official replacement is listed. For a pin-compatible swap in the same 16-SOIC footprint with 800 V breakdown, consider the VIPer16HD or VIPer17HD from the same VIPer™ plus family — verify the protection feature set and any minor parametric differences against the datasheet before substituting."},{"question":"What is the maximum output power of the VIPER15HD?","answer":"The VIPER15HD is rated for 10 W output power in a flyback topology."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/VIPER15HD","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/VIPER15HD when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}