18QHTF21-25.805-PD

Oscillators Overview

The 18QHTF21-25.805-PD is a 25.805 MHz crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a supply voltage of 1.8V and utilizes LVCMOS output logic. The component provides a frequency stability of ±50ppm and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with specified dimensions and height parameters suitable for surface-mount assembly.

Oscillators Feature Summary

• LVCMOS output logic interface
• Standby and power-down functionality
• ±50ppm frequency stability

Oscillators Applications

• Precision timing applications
• Digital signal processing systems
• Communication equipment

Oscillators Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the official datasheet before integration. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the 4-SMD no-lead package footprint matches the PCB design guidelines to prevent soldering defects during assembly.

Oscillators Selection Notes

Select this model when a low-voltage 1.8V operation is required alongside standard LVCMOS compatibility. The ±50ppm stability suits general-purpose digital circuits rather than high-precision RF references. Consider the physical dimensions of the 4-SMD package to ensure adequate clearance on the printed circuit board layout.

Oscillators Part Context

Mercury Electronics Ind. Co. Ltd has been manufacturing frequency control products since 1973 and is recognized as a pioneer in the quartz crystal industry in Taiwan. This component belongs to their series of standard crystal oscillators designed for reliable timing solutions in electronic devices.

Oscillators Replacement Considerations

The 3QHTF22-25.805-PD is a documented substitute part number offering similar frequency and stability specifications. Verify pinout compatibility and voltage levels before substitution.