18QHTF21-12.004-OE

Overview

The 18QHTF21-12.004-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 12.004 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• Provides stable clock signal generation at 12.004 MHz
• Integrates LVCMOS output logic for digital interface compatibility
• Features low-voltage operation with 1.8V supply requirement
• Includes hardware enable/disable control capability

Applications

• Timing and clock signal generation in electronic devices
• Digital circuit synchronization systems
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your power management architecture. Ensure the 4-SMD no-lead package dimensions fit within your PCB layout constraints. Check for any RoHS compliance documentation if required by your manufacturing standards.

Selection Notes

Select this component when a 12.004 MHz reference is required for LVCMOS-compatible circuits. Consider the 1.8V operating voltage as a primary constraint for power budgeting. The enable/disable feature offers flexibility for power management strategies. Evaluate the small form factor against available board space. Compare performance metrics with alternative oscillators if stricter jitter or stability specifications are necessary.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystals and frequency control products. The company has been manufacturing these components since 1973. This series typically offers standard XO configurations suitable for general-purpose timing applications in consumer and industrial electronics.

Replacement Considerations

Direct substitutes include other 12.004 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and electrical parameters such as frequency stability and phase noise. Alternative part numbers from the same manufacturer may offer different temperature ranges or packaging options.