{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121DM1-040.0000","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121DM1-040.0000","canonicalUrl":"https://icboms.com/microchip/DSC1121DM1-040.0000","factsUrl":"https://icboms.com/api/mcp/products/DSC1121DM1-040.0000","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1121DM1-040.0000, XO (Standard), 40 MHz CMOS output, MEMS base resonator, AEC-Q100 qualified, -55°C to 125°C, 2.25V-3.6V supply, 6-SMD no-lead package, active product status.","salesMarkdown":"## 40 MHz MEMS oscillator with military temperature range The DSC1121DM1-040.0000 is a 40 MHz XO (Standard) from Microchip's DSC1121 series, built on a MEMS base resonator rather than a quartz crystal — the MEMS die is sealed at wafer level, so the oscillator survives the -55°C to 125°C military temperature band without the frequency jumps quartz exhibits near its turnover points. Rated AEC-Q100, this part carries the thermal cycling and reliability stress screening required for under-hood automotive modules, avionics black boxes, and downhole instrumentation where a standard 0°C to 70°C crystal would drift out of spec. Supply voltage spans 2.25V to 3.6V, covering both 2.5V and 3.3V rails with headroom — a single BOM line serves designs with different core voltages, and the wide range absorbs ripple from a noisy buck converter without losing lock. Housed in a 6-SMD no-lead package measuring 2.50mm x 2.00mm with a seated height of 0.90 mm max, the DSC1121DM1-040.0000 fits the compact 2.0 x 2.5 mm footprint common to MEMS oscillators — the no-lead land pattern eliminates the parasitic inductance of a leaded package, keeping the clock edge clean at 40 MHz. Active product status — Microchip continues production of the DSC1121 series with no announced discontinuation.","metaTitle":"DSC1121DM1-040.0000 MEMS Oscillator 40MHz AEC-Q100 Active","metaDescription":"Microchip DSC1121DM1-040.0000 XO (Standard) 40MHz CMOS MEMS oscillator. AEC-Q100 qualified, -55°C to 125°C, 2.25V-3.6V supply. Active lifecycle. Request quote.","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":"AEC-Q100","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":"0.098\\\" L x 0.079\\\" W (2.50mm x 2.00mm)","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)":"35mA","Absolute Pull Range (APR)":"-","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"22mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4ad75d2f22fe92055f4a953b00c76a2c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order DSC1121DM1-040.0000 or request a quote?","answer":"Submit an RFQ through this page."},{"question":"Can DSC1121DM1-040.0000 replace a standard 40 MHz quartz oscillator?","answer":"Yes, in most applications. The 40 MHz CMOS output is electrically compatible with a standard quartz oscillator's output, and the ±50 ppm frequency stability matches typical quartz performance. The MEMS construction eliminates the quartz start-up time and is more resistant to vibration and temperature shock, making it a drop-in upgrade for harsh environments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121DM1-040.0000","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121DM1-040.0000 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}}