18QHTF21-12.15269-OE

Overview

The 18QHTF21-12.15269-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 12.15269 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications with a supply voltage of 1.8V. It features an enable/disable control function for power management. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly in space-constrained electronic designs.

Feature Summary

• Integrates enable and disable functionality for efficient power control
• Produces LVCMOS output signals compatible with standard digital interfaces
• Utilizes a lead-free SMD package for automated surface-mount processing

Applications

• Portable consumer electronics requiring low-power timing sources
• Embedded systems utilizing LVCMOS logic families
• Communication modules needing precise clock synchronization

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply rail is stable within the operational limits specified in the official datasheet. Ensure the PCB footprint matches the 4-SMD no-lead dimensions to prevent assembly errors during manufacturing.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside an enable pin for dynamic power management. The LVCMOS output is appropriate for direct interfacing with standard logic inputs without additional level shifting. Consider the small form factor if board space is limited compared to larger through-hole or standard SMD packages.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The manufacturer has decades of experience in Taiwan producing crystals and oscillators. This specific model represents a standard XO variant within their portfolio of surface-mount timing devices.

Replacement Considerations

Cross-reference other parts in the 18QHTF21 series for different frequencies. Verify compatibility with alternative manufacturers offering 1.8V LVCMOS oscillators in 4-SMD packages. Ensure electrical parameters match exactly before substituting.