18QHTF21-28.125-PD

Oscillators Overview

The 18QHTF21-28.125-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 28.125 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 with dimensions of 2.0mm x 1.6mm. The component is designed for applications requiring precise timing signals within a small form factor.

Oscillators Feature Summary

• Supports low voltage operation at 1.8V
• Integrates standby and power-down functionality
• Utilizes LVCMOS output logic for digital interfacing
• Features a compact surface-mount package design

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Digital signal processing circuits
• Communication equipment timing references
• Embedded systems with space constraints

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to prevent assembly issues. Check for any specific handling instructions regarding electrostatic discharge sensitivity during installation.

Oscillators Selection Notes

Select this component when a 28.125 MHz clock signal is required with minimal power usage. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the 1.8V operating voltage if your system uses lower voltage rails compared to traditional 3.3V or 5V designs. The integrated power-down feature makes it suitable for battery-operated applications where standby current reduction is critical for extending operational life.

Oscillators Part Context

This oscillator belongs to the QHTF series from Mercury Electronics, which focuses on high-reliability frequency control solutions. The 'PD' suffix indicates the inclusion of a power-down pin, allowing for active control of the oscillator state. This series is engineered for consumer electronics and industrial applications demanding stable performance in compact spaces. Mercury Electronics leverages its expertise in crystal manufacturing to provide consistent quality across these miniature components.

Oscillators Replacement Considerations

Direct substitutes must match the 28.125 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify that alternative models support the same standby functionality and physical dimensions. Cross-reference electrical specifications such as phase noise and jitter if strict timing accuracy is required. Ensure the replacement part is available from authorized distributors to guarantee authenticity and performance consistency.