18QHTF21-108.0025-PD

Overview

The 18QHTF21-108.0025-PD is a 108.0025 MHz crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It utilizes LVCMOS output logic and operates at a supply voltage of 1.8V. The device features a Standby function for power down capabilities. It is housed in a 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports low-power applications through standby mode functionality
• Provides precise frequency timing via standard XO design
• Utilizes compact surface-mount packaging for space-constrained designs

Applications

• Low-power electronic systems requiring precise clock signals
• Digital circuits needing stable frequency reference
• Portable devices utilizing surface-mount technology

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any specific RoHS compliance documentation if required for your region. Validate the operating temperature range suitability for your intended environment.

Selection Notes

Select this component when a 108.0025 MHz frequency is strictly required. Consider the 1.8V operation if your system uses low-voltage logic. The standby feature is beneficial for battery-operated devices. Evaluate the 2.0x1.6mm size against available board space. Compare performance metrics with alternative oscillators if higher stability or different voltage levels are needed.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a small form factor. The series typically includes models ranging from lower MHz values up to higher frequencies, all sharing similar electrical characteristics and package types. This specific model represents one of the higher frequency options in the standard lineup.

Replacement Considerations

Direct substitutes must match the 108.0025 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify equivalent electrical parameters such as phase noise and jitter specifications. Ensure compatibility with existing PCB footprints and reflow soldering profiles.