18QHTF21-11.0044-PD

Overview

The 18QHTF21-11.0044-PD is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 11.0044 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down function to reduce energy consumption during idle periods. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This series is characterized by standard performance specifications suitable for general timing applications requiring low-profile surface-mount integration.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby or power-down functionality for energy management
• Utilizes a compact 4-SMD no-lead surface-mount package

Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Confirm that the 1.8V supply voltage aligns with the system power architecture. Ensure the PCB footprint matches the 2.0x1.6 mm SMD package dimensions. Cross-reference the datasheet for operating temperature range limitations to guarantee reliability under expected environmental conditions.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a small form factor. The LVCMOS output is suitable for standard digital logic families. Consider the power-down feature if energy efficiency during inactive states is a priority. Verify that the 11.0044 MHz frequency meets the precise timing needs of the target circuit without requiring external dividers.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on low-profile crystal oscillators. The series typically offers various frequency options within a standardized 2.0x1.6 mm package. Mercury Electronics specializes in quartz crystals and frequency control products, providing components for consumer electronics and industrial applications requiring reliable timing solutions.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical pinout and electrical characteristics but different frequencies, such as 18QHTF21-11.0592-PD. Ensure any replacement maintains the 1.8V supply requirement and LVCMOS output type. Verify package compatibility and thermal specifications before swapping.