{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121CM1-018.0000","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121CM1-018.0000","canonicalUrl":"https://icboms.com/microchip/DSC1121CM1-018.0000","factsUrl":"https://icboms.com/api/mcp/products/DSC1121CM1-018.0000","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC1121CM1-018.0000, Series DSC1121, XO (Standard) 18 MHz CMOS output MEMS oscillator, ±50 ppm stability, 2.25V–3.6V supply, -55°C to 125°C, 6-SMD package, tube, active production.","salesMarkdown":"## 18 MHz MEMS XO – full military temp range An engine-bay ECU or a remote telemetry unit that sees 105°C ambient still has 20°C of margin before the oscillator drifts outside its ±50 ppm stability window. Supply voltage spans 2.25V to 3.6V — it runs on a 2.5V or 3.3V rail without a separate LDO. Product status is Active per Microchip's current lifecycle designation. ## 6-SMD footprint and board integration Housed in a 6-SMD, No Lead package measuring 3.20mm x 2.50mm with a seated height of 0.90mm. The 0.126\" x 0.098\" footprint matches the standard 3.2 x 2.5 mm oscillator land pattern — no special fan-out or via-in-pad required.","metaTitle":"DSC1121CM1-018.0000 MEMS XO – 18 MHz, CMOS, -55°C to 125°C","metaDescription":"Microchip DSC1121CM1-018.0000: 18 MHz XO (Standard), CMOS output, MEMS resonator, ±50 ppm stability, 2.25V-3.6V supply, -55°C to 125°C, 6-SMD.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Crystals & Oscillators"],"specifications":{"Mfr":"Microchip Technology","Type":"XO (Standard)","Output":"CMOS","Series":"DSC1121","Package":"Tube","Ratings":"-","Function":"Enable/Disable","Frequency":"18 MHz","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"6-SMD, No Lead","Product Status":"Active","lifecycle_stage":"eol_hot","Size / Dimension":"0.126\\\" L x 0.098\\\" W (3.20mm x 2.50mm)","Voltage - Supply":"2.25V ~ 3.6V","Base Product Number":"DSC1121","Frequency Stability":"±50ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-55°C ~ 125°C","Current - Supply (Max)":"22mA","Absolute Pull Range (APR)":"-","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4ad75d2f22fe92055f4a953b00c76a2c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/DSC1121CM1-018.0000/alternatives.json"},"ai":{"faq":[{"question":"Is DSC1121CM1-018.0000 compatible with a 3.3V supply?","answer":"Yes. The supply voltage range is 2.25V to 3.6V, so both 2.5V and 3.3V rails are within spec. No external regulator needed."},{"question":"What is the frequency stability of DSC1121CM1-018.0000?","answer":"This stability holds across the entire supply voltage window — no additional derating for supply variation."},{"question":"What is the closest pin-compatible alternative in the DSC1121 family?","answer":"The DSC1121 series shares the same 6-SMD footprint and pinout across all frequency variants. A different frequency order code (e.g., DSC1121CM1-025.0000) is a direct drop-in replacement if the system clock can change. No quartz-based alternative is pin-compatible — the MEMS package is unique to this series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121CM1-018.0000","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121CM1-018.0000 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}}