18QHTF21-4.1924-PD

Oscillators Overview

The 18QHTF21-4.1924-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 4.1924 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 function to reduce consumption when inactive. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby mode capability
• Utilizes LVCMOS output interface

Oscillators Applications

• General-purpose digital circuit timing
• Embedded system clock generation
• Portable electronic devices

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply rail is stable and within the operational limits defined in the official datasheet. Ensure the PCB footprint matches the 2.0x1.6 mm SMD package dimensions to guarantee proper soldering and mechanical stability during assembly processes.

Oscillators Selection Notes

Select this component when a 4.1924 MHz clock signal is required for LVCMOS-compatible circuits. Consider the 1.8V operating voltage constraint and the availability of the standby feature for power management strategies. Evaluate the small form factor against available board space constraints to ensure compatibility with dense layout designs.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic Ind. Co., Ltd, a manufacturer specializing in quartz crystals and oscillators. The series typically offers various frequencies within a standardized 2.0x1.6 mm package. This specific model provides a fixed frequency output, distinguishing it from programmable alternatives while maintaining consistent physical characteristics across the family.

Oscillators Replacement Considerations

Direct substitutes must match the 4.1924 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility and electrical parameters such as phase noise and jitter if critical to the application.