{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1121DM1-050.0000","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1121DM1-050.0000","canonicalUrl":"https://icboms.com/microchip/DSC1121DM1-050.0000","factsUrl":"https://icboms.com/api/mcp/products/DSC1121DM1-050.0000","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1121 series MEMS XO (Standard), 50 MHz CMOS output, 2.25V–3.6V supply, ±50 ppm stability, -55°C to 125°C, AEC-Q100, 6-SMD no-lead package","salesMarkdown":"## 50 MHz MEMS oscillator with full military temperature range The DSC1121DM1-050.0000 is a MEMS-based XO (standard oscillator) delivering a 50 MHz CMOS clock from a 2.25V to 3.6V supply rail — one part covers 2.5V and 3.3V logic families without a translator. AEC-Q100 qualification confirms the device passed automotive-grade reliability stress — thermal cycling, moisture resistance, and extended life test — making it suitable for under-hood and chassis-domain electronics. ## MEMS resonator vs quartz — what the spec means for your board The MEMS base resonator eliminates the quartz crystal startup delay — the oscillator is stable within microseconds of power-up, which simplifies sequencing in multi-rail designs. Frequency stability is ±50 ppm across the full temperature range and supply variation — tight enough for a 50 MHz clock feeding an MCU or FPGA PLL without dynamic reconfiguration. Maximum supply current is 35 mA when enabled; with the Enable/Disable function pulled low, the output is tri-stated and current drops to 22 mA max — useful for power-gating clock trees in battery-backed systems. ## Package, footprint, and board integration Housed in a 6-SMD, no-lead package measuring 2.50 mm × 2.00 mm with a seated height of 0.90 mm, the DSC1121DM1-050.0000 fits dense PCB layouts — the small footprint leaves room for decoupling caps near the supply pin. Surface-mount assembly with standard reflow profiles; the no-lead package requires a solder-paste stencil aperture matched to the pad geometry — no via-in-pad needed. Product status is Active — Microchip continues to manufacture the DSC1121DM1-050.0000 with no announced end-of-life. No official successor or second-source is listed; the DSC1121 series is the current production family. Available through independent distribution; quoted to order against the BOM quantity. Confirm the reel/tape quantity and lead time at RFQ — the listed package is Tube, but tape-and-reel options may be orderable under the same base number.","metaTitle":"DSC1121DM1-050.0000 MEMS Oscillator","metaDescription":"DSC1121DM1-050.0000 from Microchip: MEMS XO, 50 MHz CMOS output, -55°C to 125°C, AEC-Q100. 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":"50 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":"Is DSC1121DM1-050.0000 compatible with a 3.3V supply?","answer":"Yes. The supply voltage range is 2.25V to 3.6V, so a 3.3V rail is within spec — no external regulator or level shifter needed."},{"question":"Can DSC1121DM1-050.0000 replace a quartz crystal oscillator?","answer":"Functionally yes — it provides a 50 MHz CMOS clock output like a quartz oscillator, but with a MEMS resonator that offers faster startup, better shock/vibration immunity, and wider temperature range. The package is a standard 6-SMD no-lead footprint — verify the pad layout matches your existing quartz oscillator footprint before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1121DM1-050.0000","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1121DM1-050.0000 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}}