18QHTF21-42.53976-PD

Oscillators Overview

The 18QHTF21-42.53976-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 42.53976 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down mode capability. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Supports low-voltage operation with 1.8V supply requirement
• Includes standby functionality for power management
• Utilizes LVCMOS output logic for digital interface compatibility

Oscillators Applications

• General-purpose clock signal generation
• Digital circuit timing reference
• Embedded system synchronization

Oscillators 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 system's power rails. Ensure the 4-SMD no-lead package dimensions fit within your PCB layout constraints. Cross-reference the manufacturer datasheet for detailed electrical characteristics to guarantee reliable performance under operating conditions.

Oscillators Selection Notes

Select this component when a stable 42.53976 MHz clock source is required for LVCMOS-compatible circuits. Consider the 1.8V operating voltage to ensure compatibility with low-power digital logic families. The integrated standby feature offers energy efficiency benefits for battery-operated or power-sensitive designs. Evaluate the physical footprint of the 4-SMD package against available board space.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, which provides standard frequency oscillators. The model number indicates a specific frequency variant within the 18QHTF21 family. Mercury Electronics has a long history in quartz crystal manufacturing, positioning this component as a reliable timing solution for various electronic applications requiring precise frequency control.

Oscillators Replacement Considerations

Direct substitutes must match the 42.53976 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical parameters such as phase noise and jitter if critical. Consult manufacturer cross-reference lists for approved alternatives.