{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121AI2-125.0037","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121AI2-125.0037","canonicalUrl":"https://icboms.com/microchip/DSC1121AI2-125.0037","factsUrl":"https://icboms.com/api/mcp/products/DSC1121AI2-125.0037","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC1121AI2-125.0037, XO (Standard) MEMS oscillator, 125.0037 MHz CMOS output, ±25 ppm stability, 2.25 V to 3.6 V supply, AEC-Q100 qualified, 6-SMD package.","salesMarkdown":"## 125.0037 MHz MEMS oscillator for automotive timing The DSC1121AI2-125.0037 is a MEMS-based XO (Standard) oscillator delivering a precise 125.0037 MHz CMOS output. This frequency is common in high-speed serial interfaces (e.g., Gigabit Ethernet, PCIe reference clocks) and automotive Ethernet or camera links where the ±25 ppm stability keeps the bit-error rate within the link budget. AEC-Q100 qualification means this part is characterized and reliability-tested for automotive temperature ranges and stress conditions — suitable for under-hood or cabin electronics where a standard commercial oscillator would drift or fail. ## Supply voltage and power budget Maximum supply current is 35 mA; in disable mode (Enable/Disable function,) it drops to 22 mA, useful for power-save states in battery-backed or ignition-controlled modules. Housed in a 6-SMD, No Lead Exposed Pad package measuring 7.00 mm x 5.00 mm with a seated height of 0.90 mm. The exposed pad requires a thermal via pattern under the package for heat conduction — the datasheet's recommended land pattern should be followed to avoid solder voids. Surface-mount assembly is standard reflow; the MEMS resonator is less sensitive to board flex than a quartz crystal, but the same 0.50 mm stencil aperture rules apply.","metaTitle":"DSC1121AI2-125.0037 MEMS Oscillator 125.0037 MHz CMOS","metaDescription":"Microchip DSC1121AI2-125.0037 XO (Standard) MEMS oscillator, 125.0037 MHz CMOS output, ±25 ppm stability, 2.25-3.6 V supply, AEC-Q100, active production.","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":"125.0037 MHz","Mounting Type":"Surface Mount","Base Resonator":"MEMS","Package / Case":"6-SMD, No Lead Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Size / Dimension":"0.276\\\" L x 0.197\\\" W (7.00mm x 5.00mm)","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4ad75d2f22fe92055f4a953b00c76a2c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is DSC1121AI2-125.0037 AEC-Q100 qualified?","answer":"Yes, it carries AEC-Q100 ratings, meaning it is qualified for automotive-grade reliability and temperature stress — suitable for under-hood and cabin electronics where standard commercial oscillators would not be acceptable."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121AI2-125.0037","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121AI2-125.0037 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}}