{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121BM1-048.0000","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121BM1-048.0000","canonicalUrl":"https://icboms.com/microchip/DSC1121BM1-048.0000","factsUrl":"https://icboms.com/api/mcp/products/DSC1121BM1-048.0000","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1121BM1-048.0000, XO (Standard) MEMS oscillator, 48 MHz CMOS output, ±50 ppm stability, 2.25V–3.6V supply, -55°C to 125°C, AEC-Q100 qualified, 6-SMD package.","salesMarkdown":"The DSC1121BM1-048.0000 is an active-production MEMS-based XO (Standard) oscillator from Microchip, rated for the full -55°C to 125°C military temperature range — it keeps a 48 MHz CMOS clock on the rail through engine-bay heat soak and cold-soak at -55°C, where a quartz oscillator would drift or stop. AEC-Q100 qualification confirms it passes automotive-grade reliability stress and PPAP — the part is suited for under-hood ECUs, ADAS sensor modules, and chassis-domain controllers that require -40°C to 125°C operation with margin. The 2.25V to 3.6V supply range covers both 2.5V and 3.3V logic rails without an external LDO — a single oscillator serves a mixed-voltage board where the MCU runs at 3.3V and the FPGA bank at 2.5V. CMOS output drives standard digital loads directly — no termination network needed for short traces under 2 inches. ## Package and footprint — 5.0×3.2 mm 6-SMD The 6-SMD, no-lead package measures 5.00 mm × 3.20 mm with a seated height of 0.90 mm — the footprint is the same as a standard 5×3.2 mm quartz oscillator, so the DSC1121BM1-048.0000 drops onto an existing board layout without a spin. Surface-mount assembly reflows on a standard lead-free profile; the MEMS resonator inside is less sensitive to board flex than a quartz crystal, reducing the risk of startup failures on thin PCBs.","metaTitle":"DSC1121BM1-048.0000 MEMS Oscillator 48 MHz CMOS AEC-Q100","metaDescription":"Microchip DSC1121BM1-048.0000 XO (Standard) MEMS oscillator, 48 MHz CMOS output, ±50 ppm stability, -55°C to 125°C, AEC-Q100 qualified.","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":"48 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":"-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":"Is the DSC1121BM1-048.0000 AEC-Q100 qualified for automotive use?","answer":"Yes, the DSC1121BM1-048.0000 is rated AEC-Q100, which covers the full automotive qualification flow including temperature cycling, ESD sensitivity, and latch-up immunity. This qualifies it for under-hood and cabin applications where the ambient temperature reaches 125°C."},{"question":"Does the DSC1121BM1-048.0000 have an enable/disable function?","answer":"Yes, the enable/disable function allows the output to be gated. When disabled, the maximum supply current drops from 35 mA to 22 mA, useful for power saving in battery-operated or intermittently clocked systems."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121BM1-048.0000","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121BM1-048.0000 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}}