18QHTF21-10.738635-PD

Overview

The 18QHTF21-10.738635-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 10.738635 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Provides stable clock signals via LVCMOS output interface
• Supports low-power operation with standby mode capability
• Designed for surface-mount integration using leadless SMD package

Applications

• General-purpose digital circuit timing
• Embedded system clock generation
• Communication module synchronization

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 footprint matches your PCB layout constraints. Check for any specific handling instructions related to the leadless package type during assembly.

Selection Notes

Select this component when a precise 10.738635 MHz reference is required for LVCMOS-compatible logic families. Consider the 1.8V operating voltage as a primary constraint for power supply design. Evaluate the thermal performance and size limitations of the 4-SMD package relative to other available oscillator options in the Mercury Electronics portfolio.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series typically offers various frequencies with consistent LVCMOS outputs and 1.8V operation. The 'PD' suffix likely indicates a specific packaging or tape-and-reel configuration, though exact details require datasheet confirmation. This model serves as a timing source for digital systems.

Replacement Considerations

Direct substitutes must match the 10.738635 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no-lead package. Verify pinout compatibility if replacing with similar models from other manufacturers. Ensure equivalent frequency stability and phase noise characteristics are maintained for the application.