18QHTF21-72.600-PD

Overview

The 18QHTF21-72.600-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind., Co., Ltd. It operates at a fixed frequency of 72.6 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, featuring a supply voltage of 1.8V. It supports a standby or power-down mode to reduce energy consumption when not in active use. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• Supports low-power standby and power-down modes for energy efficiency
• Delivers stable LVCMOS output signals for digital interfacing
• Utilizes a miniature 4-SMD no-lead package for space-constrained designs

Applications

• Battery-powered portable electronic devices
• Compact consumer electronics requiring minimal footprint
• Digital systems utilizing LVCMOS logic interfaces

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply voltage aligns with your target platform's power rails. Ensure the 4-SMD no-lead package dimensions fit within your PCB layout constraints. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliable attachment during assembly processes.

Selection Notes

Select this component when a precise 72.6 MHz clock signal is required for LVCMOS-compatible circuits. The 1.8V operating voltage makes it suitable for modern low-power digital systems. Consider the small 2.0x1.6 mm package size if board real estate is limited. Evaluate the need for standby functionality to manage power budgets in portable applications effectively.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which focuses on low-profile surface-mount solutions. The series typically offers various frequencies and voltage options. The 'PD' suffix indicates the inclusion of power-down capabilities. This specific model provides a high-frequency output in a tiny form factor, addressing trends toward miniaturization in mobile and embedded hardware.

Replacement Considerations

Direct substitutes must match the 72.6 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pin compatibility and thermal characteristics. Cross-reference with other manufacturers offering similar low-profile oscillators, ensuring identical electrical parameters and mechanical dimensions to maintain PCB integrity.