18QHTF21-54.79125-PD

Oscillators Overview

The 18QHTF21-54.79125-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 54.79125 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 2.0 x 1.6 mm. This component is designed for applications requiring precise clock signals in space-constrained electronic systems.

Oscillators Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated standby and power-down functionality
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• General purpose clock signal generation
• Digital system timing references
• Embedded electronics requiring low profile components

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 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any specific operating temperature range limitations defined in the official datasheet to guarantee reliability under your environmental conditions.

Oscillators Selection Notes

Select this model when a 54.79125 MHz clock source is required with LVCMOS outputs. Consider the 1.8V operating voltage and standby capability for power-sensitive designs. The small 2.0x1.6mm package is suitable for high-density board layouts. Verify compatibility with your target application's noise and stability requirements compared to other oscillator types.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series typically offers various frequencies with LVCMOS outputs in a 4-SMD no-lead form factor. The 'PD' suffix indicates the inclusion of a power-down feature. Mercury Electronics specializes in quartz-based frequency control products, providing reliable timing solutions for industrial and consumer electronics markets.

Oscillators Replacement Considerations

Direct substitutes must match the 54.79125 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no-lead package. Verify pinout compatibility and electrical characteristics such as phase jitter and duty cycle. Alternative parts from other manufacturers require careful evaluation of thermal and mechanical specifications to ensure interchangeability.