{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1818R-20+T&R","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS1818R-20TR","canonicalUrl":"https://icboms.com/analog-devices/DS1818R-20TR","factsUrl":"https://icboms.com/api/mcp/products/DS1818R-20%2BT%26R","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated DS1818R-20+T&R, EconoReset Simple Reset/Power-On Reset, active-low open-drain output, 2.55V threshold, 100ms min reset timeout, -40°C to 85°C, SOT-23-3.","salesMarkdown":"## Industrial temperature and package reality Rated for -40°C to 85°C ambient, this part handles the thermal swings you see in outdoor telecom enclosures, factory automation panels, and automotive cabin modules. The SOT-23-3 package (TO-236-3, SC-59 equivalent) is a three-pin surface-mount footprint that fits into tight layouts alongside passives — no extra board area for a larger SOIC. The single monitored voltage means this is a straightforward rail guard, not a multi-voltage sequencer; you place it on the core or I/O supply and route the reset output to the processor's /RST pin. ## Active lifecycle — no LTB pressure This removes the sourcing risk of a last-time-buy scramble — you can qualify it into a new BOM without worrying about a short procurement window. The part is available through independent distribution, quoted to order against an RFQ with current pricing confirmed at quote time.","metaTitle":"DS1818R-20+T&R Simple Reset/Power-On Reset, 2.55V Threshold","metaDescription":"DS1818R-20+T&R EconoReset supervisor IC: active-low open-drain output, 2.55V threshold, 100ms min reset timeout, industrial temp -40°C to 85°C, SOT-23-3.","metaKeywords":null},"attributes":{"series":"EconoReset","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Simple Reset/Power-On Reset","Reset":"Active Low","Output":"Open Drain or Open Collector","Series":"EconoReset","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":"2.55V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"SOT-23-3","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.49","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.49000","currency":"USD"},{"qty":10,"price":"$3.13000","currency":"USD"},{"qty":25,"price":"$2.95960","currency":"USD"},{"qty":100,"price":"$2.56480","currency":"USD"},{"qty":250,"price":"$2.43332","currency":"USD"},{"qty":500,"price":"$2.18340","currency":"USD"},{"qty":1000,"price":"$1.84142","currency":"USD"},{"qty":3000,"price":"$1.74935","currency":"USD"}]},"links":{"datasheetUrl":"https://datasheets.maximintegrated.com/en/ds/DS1818.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is DS1818R-20+T&R a direct replacement for DS1818R-10+T&R?","answer":"Both parts share the same EconoReset family, SOT-23-3 package, active-low open-drain output, and industrial temperature range. The difference is the voltage threshold — DS1818R-20+T&R trips at 2.55V, while DS1818R-10+T&R trips at a different threshold. Verify the threshold matches your monitored rail before substituting."},{"question":"Is DS1818R-20+T&R active low reset?","answer":"Yes, the reset output is active low. When the monitored voltage falls below 2.55V, the open-drain output pulls low. It remains low for the 100ms minimum timeout after the supply recovers above the threshold."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS1818R-20TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS1818R-20TR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}