{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121BI1-125.0038","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121BI1-125.0038","canonicalUrl":"https://icboms.com/microchip/DSC1121BI1-125.0038","factsUrl":"https://icboms.com/api/mcp/products/DSC1121BI1-125.0038","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology DSC1121 series, XO (Standard), 125.0038 MHz, CMOS output, ±50 ppm stability, AEC-Q100 qualified, 6-SMD package.","salesMarkdown":"## 125.0038 MHz MEMS oscillator with AEC-Q100 qualification The DSC1121BI1-125.0038 is a MEMS-based XO (Standard) from Microchip Technology, delivering a fixed 125.0038 MHz CMOS output. ## Enable/Disable function and supply range The Enable/Disable pin lets a system controller gate the clock output without cycling the 2.25V to 3.6V supply rail. When disabled, the supply current drops from a 35 mA max active draw to 22 mA max — enough to reduce board-level power in a sleeping ECU without losing the oscillator's lock. ## 6-SMD footprint and MEMS reliability Housed in a 5.00 mm x 3.20 mm, 0.90 mm seated-height 6-SMD No Lead package, the DSC1121BI1-125.0038 is a surface-mount drop-in for standard XO footprints. The MEMS base resonator eliminates the quartz crystal's shock and vibration sensitivity — useful for automotive and industrial environments where board-level g-force can pull a quartz oscillator off frequency.","metaTitle":"DSC1121BI1-125.0038 Microchip MEMS XO 125.0038 MHz CMOS","metaDescription":"DSC1121BI1-125.0038 – Microchip Technology MEMS XO, 125.0038 MHz, CMOS output, AEC-Q100 qualified, -40°C to 85°C, 6-SMD. Active production, sourced per RFQ.","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":"125.0038 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":"±50ppm","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 the DSC1121BI1-125.0038 equivalent to a standard quartz oscillator?","answer":"Functionally it replaces a 125.0038 MHz quartz XO with CMOS output in the same 6-SMD footprint. The difference is the MEMS resonator inside — it offers better shock/vibration resistance and a wider supply range (2.25V to 3.6V) than many quartz parts, but the pinout and output type are standard."},{"question":"Can the DSC1121BI1-125.0038 be used in automotive applications?","answer":"Yes — it is AEC-Q100 qualified, meaning it has passed the temperature cycling, ESD, and reliability stress tests required for automotive ICs."},{"question":"Does the DSC1121BI1-125.0038 have an enable/disable function?","answer":"Yes, the Enable/Disable pin is standard on this DSC1121 series part. When pulled low (or left floating depending on the logic), the output goes to high-impedance and the supply current drops to 22 mA max."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121BI1-125.0038","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121BI1-125.0038 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}}