{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VIPER100A-E","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"VIPER100A-E","canonicalUrl":"https://icboms.com/stmicroelectronics/VIPER100A-E","factsUrl":"https://icboms.com/api/mcp/products/VIPER100A-E","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics VIPER™ series VIPER100A-E, flyback switching regulator, 100 W, 700V breakdown, 8V~15V supply, up to 200 kHz, Pentawatt-5 HV surface mount.","salesMarkdown":"## 700V flyback switcher — what it does in the supply The STMicroelectronics VIPER100A-E is a monolithic flyback switching regulator from the VIPER™ series, integrating a 700V avalanche-rugged power MOSFET and PWM controller in a single Pentawatt-5 HV package. It delivers up to 100 W in isolated or non-isolated offline converters, targeting AC-DC adapters, auxiliary supplies, and industrial power stages where board space is tight. ## 200 kHz switching — transformer size trade-off Switching at up to 200 kHz lets you shrink the flyback transformer and output filter capacitance compared to 65–100 kHz designs, but pushes the snubber and layout discipline — the leakage-inductance spike at turn-off needs a well-placed RCD clamp to stay within the 700V breakdown. ## Control and protection features Built-in fault protection includes current limiting and over-temperature shutdown. The enable pin, frequency control, and soft-start give the designer flexibility to tailor the converter's startup behaviour and EMI profile without external sequencing logic. Sourcing is limited to surplus and broker inventory; we quote each order against an RFQ, confirming availability and current pricing at quote time.","metaTitle":"STMicroelectronics VIPER100A-E Flyback Converter, 100 W","metaDescription":"Obsolete ST VIPER100A-E flyback switching regulator, 100 W, 700V breakdown, up to 200 kHz.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"STMicroelectronics","Series":"VIPER™","Package":"Tube","Topology":"Flyback","Duty Cycle":"-","Mounting Type":"Surface Mount","Power (Watts)":"100 W","Package / Case":"Pentawatt-5 HV (Bent and Staggered Leads)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Control Features":"EN, Frequency Control, Soft Start","Fault Protection":"Current Limiting, Over Temperature","Output Isolation":"Isolated","Internal Switch(s)":"Yes","Voltage - Start Up":"11 V","Base Product Number":"VIPER100","Voltage - Breakdown":"700V","Frequency - Switching":"Up to 200kHz","Operating Temperature":"-","Supplier Device Package":"5-PENTAWATT","Voltage - Supply (Vcc/Vdd)":"8V ~ 15V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.8700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/81c8fe18993a005daa1cccf8222897b1.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/VIPER100A-E/alternatives.json"},"ai":{"faq":[{"question":"What is the operating frequency of VIPER100A-E?","answer":"The VIPER100A-E switches at up to 200 kHz, allowing a smaller transformer and output capacitor compared to lower-frequency flyback controllers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/VIPER100A-E","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/VIPER100A-E 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}}