18QHTF21-122.500-OE

Overview

The 18QHTF21-122.500-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 122.5 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component is designed for applications requiring precise clock signals within a small form factor.

Feature Summary

• Provides stable 122.5 MHz clock signal generation using LVCMOS output logic
• Features low voltage operation at 1.8V with integrated enable/disable control
• Utilizes a compact 4-SMD no-lead surface mount package for space-constrained designs

Applications

• High-speed digital signal processing systems requiring precise timing
• Communication equipment utilizing standard clock interfaces
• Embedded systems needing low-power clock sources with control capabilities

Procurement Notes

Verify the specific suffix 'OE' against the manufacturer's current datasheet to confirm availability and exact electrical tolerances. Ensure the 1.8V supply requirement aligns with the target system design. Confirm that the 4-SMD package footprint matches the PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when a 122.5 MHz frequency is strictly required alongside LVCMOS compatibility. Consider the 1.8V operating voltage and enable pin functionality for power efficiency needs. Evaluate the 2.0x1.6mm package size against available board space. Compare against other Mercury oscillators if different frequencies or voltages are needed.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on high-frequency crystal oscillators. The series typically offers various frequencies and package options. The 'OE' suffix likely denotes a specific packaging or quality grade variant within the manufacturer's lineup, distinct from other suffixes like 'PD'.

Replacement Considerations

Direct substitutes must match the 122.5 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics with alternative manufacturers before substitution.