18QHTF21-62.500-PD

Overview

The 18QHTF21-62.500-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 62.5 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and features a power-down standby function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component supports an operating temperature range suitable for general electronic applications.

Feature Summary

• Supports low-voltage operation at 1.8V for efficient power consumption
• Includes a power-down standby mode to minimize current draw when inactive
• Utilizes LVCMOS output logic for direct interface with digital circuits
• Features a small surface-mount footprint for space-constrained designs

Applications

• Portable consumer electronics requiring low power consumption
• Digital signal processing systems needing precise clock timing
• Communication modules utilizing standard frequency references
• Embedded control systems with limited board space

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before ordering. 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 RoHS compliance documentation if required by your manufacturing standards.

Selection Notes

Select this model when a 62.5 MHz reference is required with strict size limitations. The 1.8V supply makes it suitable for modern low-power digital logic families. Consider the power-down feature if battery life or thermal management is critical. Compare against other Mercury series oscillators if different frequencies or voltage levels are needed.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on miniature crystal oscillators. The series typically offers various frequencies and voltage options. The 'PD' suffix indicates the inclusion of a power-down control pin. Similar parts in the lineup include variants with different frequencies like 51.2 MHz or 96.768 MHz.

Replacement Considerations

Direct replacements must match the 62.5 MHz frequency, 1.8V supply, and LVCMOS output. Compatible packages include 4-SMD no-lead types with identical 2.0x1.6mm dimensions. Verify pinout compatibility for the power-down function. Cross-reference with other manufacturers offering similar MEMS or quartz oscillators if Mercury stock is unavailable.