18QHTF21-111.26374-PD

Overview

The 18QHTF21-111.26374-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 111.26374 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down function via the standby pin. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm. The component is RoHS compliant and classified under MSL level 1, indicating unlimited shelf life regarding moisture sensitivity.

Feature Summary

• Provides precise clock signal generation at 111.26374 MHz using LVCMOS logic
• Supports low-power operation through a dedicated standby or power-down control feature
• Utilizes a small form-factor 4-SMD no-lead surface mount package

Applications

• Precision timing circuits requiring stable clock signals
• Digital systems utilizing LVCMOS interface standards
• Compact electronic devices necessitating low-voltage operation

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 power management architecture. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to guarantee proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this component when a fixed 111.26374 MHz frequency is required with LVCMOS compatibility. Consider the 1.8V operating voltage and power-down capability for energy-efficient designs. Evaluate the small 4-SMD package size for space-constrained applications. Verify environmental compliance and moisture sensitivity levels for manufacturing readiness.

Part Context

This part belongs to the QHTF series of standard oscillators from Mercury Electronic Ind. Co., Ltd. The manufacturer specializes in quartz crystals, filters, and various oscillator types including TCXOs and VCTCXOs. This specific model represents a standard XO variant optimized for low-voltage digital applications with precise frequency stability.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Direct replacements must be sourced from official Mercury Electronics catalogs or verified distributors ensuring identical electrical parameters and package dimensions.