{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121BI2-040.0000T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121BI2-040.0000T","canonicalUrl":"https://icboms.com/microchip/DSC1121BI2-040.0000T","factsUrl":"https://icboms.com/api/mcp/products/DSC1121BI2-040.0000T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1121 series MEMS XO, 40 MHz CMOS output, ±25 ppm stability, AEC-Q100 qualified, 6-SMD package, Enable/Disable function","salesMarkdown":"## 40 MHz MEMS XO with ±25 ppm stability for automotive clock trees ## Supply range and current draw for ECU power budgeting Operating from 2.25V to 3.6V, this oscillator covers 2.5V and 3.3V rails common in automotive ECUs, eliminating the need for a dedicated LDO in many designs. ## Package footprint and mounting Housed in a 6-SMD, No Lead package measuring 5.00 mm x 3.20 mm with a seated height of 0.90 mm — a standard 5.0 x 3.2 mm oscillator footprint that matches many quartz XO land patterns.","metaTitle":"DSC1121BI2-040.0000T MEMS XO – 40 MHz, ±25 ppm, AEC-Q100","metaDescription":"Microchip DSC1121BI2-040.0000T: MEMS-based XO, 40 MHz CMOS output, ±25 ppm stability, AEC-Q100 qualified, -40°C to +85°C. Active production. Quoted to order.","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":"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":"0.197\\\" L x 0.126\\\" W (5.00mm x 3.20mm)","Voltage - Supply":"2.25V ~ 3.6V","Base Product Number":"DSC1121","Frequency Stability":"±25ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-40°C~85°C","Current - Supply (Max)":"35mA","Absolute Pull Range (APR)":"-","Spread Spectrum Bandwidth":"-","Current - Supply (Disable) (Max)":"22mA"}},"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/DSC1121BI2-040.0000T/alternatives.json"},"ai":{"faq":[{"question":"What is the frequency stability of DSC1121BI2-040.0000T?","answer":"This includes initial tolerance, temperature drift, and aging effects — sufficient for most automotive CAN, LIN, and MCU clock domains."},{"question":"Does DSC1121BI2-040.0000T have AEC-Q100 qualification?","answer":"Yes, it is rated AEC-Q100, meaning it has passed automotive-grade reliability stress tests including temperature cycling, ESD, and latch-up."},{"question":"Is DSC1121BI2-040.0000T a direct replacement for a quartz XO?","answer":"The 5.0 x 3.2 mm 6-SMD footprint is pin-compatible with many standard quartz oscillators of the same size. However, the MEMS resonator has different startup behavior and phase-noise profile — verify the jitter budget in your PLL or SERDES application before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121BI2-040.0000T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121BI2-040.0000T 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}}