18QHTF21-11.0599-PD

Overview

The 18QHTF21-11.0599-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 11.0599 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and includes a standby or power-down control feature to manage power consumption during inactive periods. It is housed in a compact 4-SMD, no-lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• Supports low-voltage operation at 1.8V with LVCMOS output compatibility
• Integrates a standby mode for effective power management
• Utilizes a leadless SMD package for space-constrained designs

Applications

• General-purpose clock signal generation in embedded systems
• Timing reference for digital communication interfaces
• Power-efficient portable electronic devices requiring precise frequency stability

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply voltage aligns with your target platform's power rails. Ensure the 4-SMD no-lead package dimensions fit within your PCB footprint constraints. Check for any specific handling instructions regarding electrostatic discharge protection during storage and installation.

Selection Notes

Select this component when a stable 11.0599 MHz clock source is required for LVCMOS-compatible circuits. Consider the 1.8V operating voltage as a primary constraint for power-sensitive applications. Evaluate the need for a power-down feature if energy efficiency is critical. Compare the physical size of the 4-SMD package against available board space relative to other oscillator options.

Part Context

This model belongs to the 18QHTF21 series from Mercury Electronics, which focuses on standard crystal oscillators. The series typically offers various frequency options within a consistent form factor. Mercury Electronics has established itself as a manufacturer of frequency control products, providing components for diverse electronic applications requiring reliable timing signals.

Replacement Considerations

Direct substitutes must match the 11.0599 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter specifications. Ensure the replacement part supports the same standby functionality if power management is required.