{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121CM2-040.0000T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121CM2-040.0000T","canonicalUrl":"https://icboms.com/microchip/DSC1121CM2-040.0000T","factsUrl":"https://icboms.com/api/mcp/products/DSC1121CM2-040.0000T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC1121CM2-040.0000T, XO (Standard) MEMS oscillator, 40 MHz CMOS output, ±25 ppm stability, 2.25V–3.6V supply, Enable/Disable, -55°C to 125°C, 6-SMD package, Tape & Reel.","salesMarkdown":"## MEMS oscillator for extreme-temperature designs Unlike quartz oscillators that typically top out at 85°C or 105°C, this MEMS resonator maintains ±25 ppm frequency stability from -55°C to 125°C — a fit for avionics, downhole instrumentation, satellite payloads, and engine-bay electronics where the ambient exceeds standard industrial limits. The 2.25V to 3.6V supply range lets a single BOM line serve both 2.5V and 3.3V logic domains — no separate regulator or voltage translator needed for the clock rail. ## Package, footprint, and tape-and-reel availability Housed in a 6-SMD, No Lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm — a standard 3.2 x 2.5 mm footprint shared by many MEMS and quartz oscillators, simplifying second-source qualification. The DSC1121 family is an established MEMS oscillator line from Microchip Technology, widely available through independent distribution. No stock-holding claim — sourced per request.","metaTitle":"DSC1121CM2-040.0000T MEMS XO – 40 MHz, CMOS, -55°C to 125°C","metaDescription":"Microchip DSC1121CM2-040.0000T MEMS oscillator: 40 MHz CMOS output, ±25 ppm stability, 2.25V–3.6V supply, Enable/Disable, 6-SMD package.","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":"Tape & Reel (TR)","Ratings":"-","Function":"Enable/Disable","Frequency":"40 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":"±25ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-55°C~125°C","Current - Supply (Max)":"35mA","Absolute Pull Range (APR)":"-","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"22mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8150","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4ad75d2f22fe92055f4a953b00c76a2c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is DSC1121CM2-040.0000T available in tape and reel packaging?","answer":"Yes, the 'T' suffix in the order code indicates Tape & Reel (TR) packaging, suitable for automated assembly."},{"question":"Does DSC1121CM2-040.0000T have an enable/disable feature?","answer":"Yes, the Enable/Disable function allows the output to be tri-stated, reducing supply current from 35 mA max to 22 mA max."},{"question":"Can I replace a quartz oscillator with DSC1121CM2-040.0000T?","answer":"Yes, the 3.2 mm x 2.5 mm 6-SMD footprint is a common industry standard shared by many quartz and MEMS oscillators. The MEMS base resonator eliminates quartz supply-chain dependencies and extends the operating temperature range to -55°C to 125°C — verify the output type (CMOS) and supply voltage (2.25V–3.6V) match your design."},{"question":"Does DSC1121CM2-040.0000T require external load capacitors?","answer":"No — as a MEMS oscillator, the resonator and oscillation circuitry are integrated inside the package. No external load capacitors are needed, unlike a bare crystal circuit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121CM2-040.0000T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121CM2-040.0000T 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}}