18QHTF21-69.248-PD

Overview

The 18QHTF21-69.248-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd, operating at a frequency of 69.248 MHz. It utilizes LVCMOS output logic and functions with a supply voltage of 1.8V. The component features a Standby mode for power down capabilities. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes Standby mode functionality to reduce power consumption during inactive periods
• Designed as a standard crystal oscillator for precise timing applications

Applications

• General purpose clock signal generation in electronic circuits
• Timing reference for digital systems requiring 69.248 MHz stability
• Embedded devices utilizing low-voltage 1.8V power domains

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the 4-SMD No Lead package footprint matches your PCB layout constraints. Check for any specific RoHS compliance documentation if required by your manufacturing standards.

Selection Notes

Select this model when a 69.248 MHz frequency is strictly required alongside LVCMOS outputs. The 1.8V operating voltage makes it suitable for modern low-power digital logic families. Consider the small 2.0x1.6mm form factor for space-constrained designs. Evaluate the need for standby functionality if power management is a critical design parameter.

Part Context

This part belongs to the Mercury Electronics 18QHTF series of surface-mount crystal oscillators. The series typically offers various frequencies within a small SMD package. Mercury Electronics is a manufacturer specializing in quartz crystals and frequency control products, established in Taiwan with decades of industry experience.

Replacement Considerations

Direct substitutes must match the 69.248 MHz frequency, LVCMOS output type, 1.8V supply voltage, and 4-SMD No Lead package dimensions. Verify pinout compatibility and electrical characteristics such as phase noise and jitter specifications from alternative manufacturers to ensure functional equivalence.