18QHTF21-72.002-PD

Overview

The 18QHTF21-72.002-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 72.002 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications with a supply voltage of 1.8V. It features a Standby function, allowing for power-down control to reduce consumption when not in use. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes Standby mode capability for power management
• Operates on a 1.8V supply voltage rail

Applications

• Battery-powered portable electronic devices
• General-purpose clock signal generation
• Digital communication systems requiring precise timing

Procurement Notes

Verify the specific frequency tolerance and operating temperature range against the official datasheet before procurement. Ensure the 4-SMD footprint matches the target PCB layout. Confirm that the 1.8V supply voltage aligns with the system design requirements. Check for any specific ordering suffixes that may alter electrical characteristics or packaging.

Selection Notes

Select this component when a 72.002 MHz clock source is required with low voltage operation. Consider the 1.8V supply constraint and LVCMOS output levels. Evaluate the need for standby functionality to manage power consumption in the final application. Compare physical dimensions against available board space.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystals and oscillators. The manufacturer has a history dating back to 1973, focusing on frequency control products. This series typically offers standard XO configurations with various frequency options and low-voltage support.

Replacement Considerations

Direct substitutes must match the 72.002 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical specifications such as current consumption and phase noise if critical.