{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM1817TWX7F","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM1817TWX7F","canonicalUrl":"https://icboms.com/stmicroelectronics/STM1817TWX7F","factsUrl":"https://icboms.com/api/mcp/products/STM1817TWX7F","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM1817TWX7F Simple Reset/Power-On Reset supervisor IC, 3.06V threshold, Active High push-pull output, 100ms minimum reset timeout, SOT-23-3 package, -40°C to 105°C.","salesMarkdown":"## 3.06V threshold — the trip point that matters The STM1817TWX7F is a Simple Reset/Power-On Reset supervisor IC from STMicroelectronics. Its key parameter is the 3.06V voltage threshold — this is the level at which the reset output asserts when the monitored supply dips below it. For a 3.3V rail, a 3.06V threshold means the reset triggers before the rail drops into the undefined operating region of downstream logic, typically around 2.7-2.9V for 3.3V devices. The reset output is Active High with a push-pull, totem pole stage — no external pull-up resistor is needed on the output pin. When the monitored voltage falls below 3.06V, the output drives high; when it recovers above the threshold and the 100ms minimum reset timeout elapses, the output goes low, releasing the system from reset. ## Industrial temp range and SOT-23-3 footprint The 105°C upper limit gives 15°C of margin over the typical 85°C industrial ceiling before derating becomes a concern. The SOT-23-3 package (TO-236-3 / SC-59) is a 3-pin surface-mount footprint with 0.95 mm pitch. The pinout is standard for this class: GND, reset output, and VDD. The small body (2.9 x 1.3 mm) fits tight layouts where a supervisor is an afterthought on an already-crowded board.","metaTitle":"STM1817TWX7F Simple Reset/Power-On Reset, 3.06V Threshold","metaDescription":"STMicroelectronics STM1817TWX7F Simple Reset/Power-On Reset IC, 3.06V threshold, Active High push-pull output, 100ms timeout, SOT-23-3, -40°C to 105°C, active","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Type":"Simple Reset/Power-On Reset","Reset":"Active High","Output":"Push-Pull, Totem Pole","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Reset Timeout":"100ms Minimum","Package / Case":"TO-236-3, SC-59, SOT-23-3","lifecycle_stage":"eol_hot","Voltage - Threshold":"3.06V","Operating Temperature":"-40°C ~ 105°C (TA)","Supplier Device Package":"SOT-23-3","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.34","priceTiers":[{"qty":1,"price":"$1.34000","currency":"USD"},{"qty":10,"price":"$1.19700","currency":"USD"},{"qty":25,"price":"$1.13640","currency":"USD"},{"qty":100,"price":"$0.93350","currency":"USD"},{"qty":250,"price":"$0.87264","currency":"USD"},{"qty":500,"price":"$0.77116","currency":"USD"},{"qty":1000,"price":"$0.67008","currency":"USD"},{"qty":3000,"price":"$0.67007","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/da2bfc282b9685e2e635162875122e27.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM1817TWX7F/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between STM1817TWX7F and STM1817RWX7F?","answer":"Both are from the same STM1817 family with identical pinout and package. The difference is the voltage threshold: the STM1817TWX7F trips at 3.06V, while the STM1817RWX7F trips at 2.93V. The STM1817TWX7F is the correct choice for a 3.3V rail where you want the reset to assert before the rail drops below 3.0V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM1817TWX7F","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM1817TWX7F 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}}