18QHTF21-4.4544-PD

Oscillators Overview

The 18QHTF21-4.4544-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 4.4544 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and includes a standby or power-down function to manage energy consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm by 1.6mm. This component is engineered for timing applications requiring precise frequency control within low-voltage digital circuits.

Oscillators Feature Summary

• Integrates LVCMOS output logic for direct interfacing with digital systems
• Supports standby mode to reduce power consumption during idle periods
• Utilizes a leadless surface-mount package for automated assembly compatibility

Oscillators Applications

• Low-power consumer electronics requiring precise clock signals
• Portable devices utilizing 1.8V logic families
• Embedded systems needing compact timing solutions

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 voltage aligns with the system's power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications. Check for any specific reflow soldering profile recommendations provided in the official datasheet to maintain component integrity during assembly.

Oscillators Selection Notes

Select this component when a 4.4544 MHz reference is required for 1.8V logic interfaces. Consider the small 2.0x1.6mm form factor for space-constrained designs. Evaluate the need for power-down functionality if energy efficiency is a priority. Compare performance metrics such as phase noise and stability against other oscillators in the same series to ensure suitability for the specific application environment.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard XO oscillators from Mercury Electronic Ind. Co., Ltd. The series offers various frequencies and voltage options, all sharing similar physical dimensions and output characteristics. The manufacturer specializes in quartz-based frequency control products, providing reliable timing solutions for diverse electronic applications across multiple industries.

Oscillators Replacement Considerations

Direct substitutes must match the 4.4544 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and electrical parameters such as current consumption and startup time. Consult official cross-reference lists from Mercury Electronics or authorized distributors for confirmed equivalent parts.