18QHTF21-72.018-PD

Overview

The 18QHTF21-72.018-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 72.018 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, functioning with a supply voltage of 1.8V. It features a power-down capability, allowing the oscillator to enter a standby mode to reduce power consumption when not in active use. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• Supports LVCMOS output signal compatibility
• Includes power-down functionality for standby operation
• Utilizes a compact 4-SMD no-lead surface mount package

Applications

• General electronic circuits requiring precise timing signals
• Embedded systems utilizing low-voltage logic interfaces
• Portable devices necessitating reduced power consumption through standby modes

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure accurate specification alignment. Confirm that the required operating temperature range and load capacitance parameters match the target design requirements before finalizing procurement decisions. Cross-reference the part number with official distributor catalogs to validate availability and authenticity.

Selection Notes

Select this component when a stable 72.018 MHz reference clock is required within space-constrained designs. The choice is appropriate for systems demanding low-power operation due to the integrated standby feature. Ensure the host circuitry supports LVCMOS signaling standards and can accommodate the 1.8V supply voltage constraint inherent to this specific oscillator model.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronic Ind., Co., Ltd., a manufacturer specializing in quartz frequency control products. The series typically offers various frequency options within a standardized small footprint. Mercury Electronics has established itself as a pioneer in the Taiwanese quartz industry, providing components for diverse industrial and consumer electronics applications.

Replacement Considerations

Direct substitutes must match the 72.018 MHz frequency, LVCMOS output type, 1.8V supply voltage, and 4-SMD 2.0x1.6mm package dimensions. Verify pinout compatibility and electrical characteristics such as phase noise and stability specifications before implementing any alternative source or cross-reference part.