{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DSC1124BE1-125.0000","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"DSC1124BE1-125.0000","canonicalUrl":"https://icboms.com/microchip/DSC1124BE1-125.0000","factsUrl":"https://icboms.com/api/mcp/products/DSC1124BE1-125.0000","rawCanonicalId":null},"summary":{"shortDescription":"Microchip DSC1124BE1-125.0000, XO (Standard), 125 MHz, HCSL output, MEMS resonator, 6-SMD no-lead, -20°C to 70°C, ±50 ppm stability","salesMarkdown":"## 125 MHz HCSL clock — PCIe and serial-link reference The DSC1124BE1-125.0000 is a 125 MHz MEMS-based XO with HCSL output — the differential current-mode logic used for PCIe Gen 1/2/3, SATA, and Ethernet reference clocks. HCSL swings 700-900 mV peak-to-peak into 50 Ω to ground, so the receiver sees a clean edge without external termination to a bias voltage. The 125 MHz frequency matches the common PCIe reference; a 25 MHz crystal multiplied up would add jitter from the PLL, but this part delivers the base frequency directly. ## Supply range and enable/disable function Runs from 2.25 V to 3.6 V — a single 3.3 V or 2.5 V rail works without an extra regulator. That matters for power-gated subsystems: the oscillator stops drawing the full 42 mA when the downstream PHY or controller is off. 6-SMD no-lead package, 5.00 mm × 3.20 mm body, 0.90 mm seated height. The 0.197\" × 0.126\" footprint fits the standard 5×3.2 mm oscillator land pattern — no via-in-pad needed. The MEMS die sits inside a ceramic cavity, so reflow profile follows the standard JEDEC MSL-1 moisture sensitivity; no bake required before assembly if the bag seal is intact. Fine for networking gear, base stations in a climate-controlled shelter, test equipment, or office electronics. Not rated for -40°C cold start or 85°C engine-bay ambient; if the board sees those extremes, look at the DSC1124 extended-temp variants or a different oscillator family.","metaTitle":"DSC1124BE1-125.0000 Datasheet, Price, Stock","metaDescription":"Microchip DSC1124BE1-125.0000: 125 MHz HCSL MEMS oscillator, ±50 ppm stability, 2.25-3.6 V supply, -20 to 70°C. Active production. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Crystals & Oscillators"],"specifications":{"Mfr":"Microchip Technology","Type":"XO (Standard)","Output":"HCSL","Series":"DSC1124","Package":"Tube","Ratings":"-","Function":"Enable/Disable","Frequency":"125 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":"DSC1124","Frequency Stability":"±50ppm","Height - Seated (Max)":"0.035\\\" (0.90mm)","Operating Temperature":"-20°C~70°C","Current - Supply (Max)":"42mA","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/11b93dcf3fe2344432ea2f214a7ea724.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output type of DSC1124BE1-125.0000?","answer":"HCSL (High-Speed Current Steering Logic) — a differential output standard used for PCIe reference clocks. It drives 50 Ω to ground and requires no external bias voltage."},{"question":"Is DSC1124BE1-125.0000 RoHS compliant?","answer":"The evidence does not list a specific RoHS compliance statement. Microchip typically marks RoHS compliance on the product label and in the datasheet; confirm with the datasheet or your Microchip representative."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/DSC1124BE1-125.0000","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/DSC1124BE1-125.0000 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}}