{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX821SUS+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX821SUST","canonicalUrl":"https://icboms.com/analog-devices/MAX821SUST","factsUrl":"https://icboms.com/api/mcp/products/MAX821SUS%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX821SUS+T, Simple Reset/Power-On Reset IC, Active Low, Push-Pull Output, 2.93V Threshold, SOT-143-4, -40°C to +125°C.","salesMarkdown":"## What the 2.93V threshold and active-low output mean for your rail The MAX821SUS+T: When the monitored supply drops below that threshold, the active-low output (RESET) pulls low — it asserts the reset signal to the processor or logic, holding it in reset until the rail recovers and the adjustable/selectable timeout elapses. The push-pull, totem-pole output structure means you do not need an external pull-up resistor — the output drives high when the rail is good and low when it is not. That saves one component per supervisor and keeps the layout tight on a 4-pin SOT-143-4 package. ## Temperature grade and environment The 125°C upper limit covers hot enclosures, motor-drive cabinets, and under-hood automotive environments without needing a derating step at the system level.","metaTitle":"MAX821SUS+T Analog Devices Simple Reset/Power-On Reset IC","metaDescription":"MAX821SUS+T from Analog Devices — Simple Reset/Power-On Reset IC, active-low push-pull output, 2.93V threshold, -40°C to +125°C, SOT-143-4.","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 Low","Output":"Push-Pull, Totem Pole","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Reset Timeout":"Adjustable/Selectable","Package / Case":"TO-253-4, TO-253AA","lifecycle_stage":"eol_hot","Voltage - Threshold":"2.93V","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"SOT-143-4","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.18","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.18000","currency":"USD"},{"qty":10,"price":"$3.75000","currency":"USD"},{"qty":25,"price":"$3.54520","currency":"USD"},{"qty":100,"price":"$3.07240","currency":"USD"},{"qty":250,"price":"$2.91488","currency":"USD"},{"qty":500,"price":"$2.61550","currency":"USD"},{"qty":1000,"price":"$2.20584","currency":"USD"},{"qty":2500,"price":"$2.09555","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is MAX821SUS+T's reset polarity and output type?","answer":"The reset is active low, meaning the output goes low when the monitored voltage falls below the 2.93V threshold. The output is a push-pull, totem pole stage, so no external pull-up resistor is required — the output drives high on a good rail and low on a fault."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX821SUST","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX821SUST when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}