18QHTF21-25.001875-PD

Oscillators Overview

The 18QHTF21-25.001875-PD is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 25.001875 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a Standby (Power Down) control function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• Generates precise clock signals using quartz crystal technology
• Supports low-voltage operation at 1.8V
• Includes standby mode capability for power reduction

Oscillators Applications

• Digital signal processing systems
• Communication equipment timing circuits
• Embedded microcontroller clock sources

Oscillators 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 stability meets the oscillator's operational specifications. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions to guarantee proper soldering and mechanical retention during assembly processes.

Oscillators Selection Notes

Select this component when a stable 25.001875 MHz reference is required for LVCMOS-compatible digital interfaces. Consider the 1.8V operating voltage constraint and the availability of a standby control signal in the system architecture. Evaluate the small form factor suitability for space-constrained printed circuit board layouts compared to larger through-hole or standard surface-mount alternatives.

Oscillators Part Context

This part belongs to the Mercury Electronics 18QHTF series of high-frequency quartz oscillators. The series typically offers various frequency options within a standardized small outline package. The manufacturer specializes in precision timing components, providing consistent performance across their range of XO products for industrial and consumer electronics applications.

Oscillators Replacement Considerations

Direct substitutes must match the 25.001875 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no-lead package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering identical electrical parameters and physical dimensions to ensure seamless integration without redesign.