501FAK-ABAG

Overview

The Si501FAK-ABAG is a high-performance MEMS oscillator from Silicon Labs, designed for applications requiring low phase noise and high frequency stability. It operates within a supply voltage range of 1.8V to 3.3V and supports output frequencies up to 250 MHz. The device features a single-ended LVCMOS output configuration and is housed in a compact 4-pin surface-mount package measuring 1.6mm x 1.2mm. It offers typical phase noise performance suitable for demanding digital systems.

Feature Summary

• Ultra-low phase noise performance optimized for sensitive RF and clocking applications
• Wide operating supply voltage range supporting modern low-power system designs
• Compact footprint with industry-standard pinout for easy PCB integration

Applications

• High-speed data communication interfaces
• Test and measurement equipment clocking
• Networking and telecommunications infrastructure

Procurement Notes

Verify the specific suffix codes against the manufacturer's official documentation to ensure correct frequency, tolerance, and temperature grade specifications. Confirm that the required output load and drive strength match your system design requirements before finalizing procurement orders.

Selection Notes

Select this component when low jitter and phase noise are critical constraints. Ensure the operating temperature range aligns with the environmental conditions of the target application. Compare electrical specifications against alternative MEMS oscillators to verify compatibility with existing power and signal integrity budgets.

Part Context

This part belongs to the Si501 family of MEMS oscillators, which are known for replacing traditional quartz crystals in many modern electronic designs. The family provides improved shock resistance and reliability compared to piezoelectric alternatives while maintaining comparable or superior electrical performance metrics.

Replacement Considerations

Check for direct cross-reference part numbers from Silicon Labs or qualified competitors such as Epson or Nihon Dempa Kogyo. Verify pin-to-pin compatibility and electrical parameter equivalence before substituting to avoid redesign efforts.