18QHTF21-11.392-PD

Overview

The 18QHTF21-11.392-PD is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 11.392 MHz and utilizes LVCMOS output logic. The device supports a supply voltage range typically including 1.8V, with an integrated standby (power down) function for energy efficiency. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports low-voltage operation with integrated power-down capability
• Provides stable LVCMOS output signals for digital circuit interfacing
• Utilizes a leadless SMD package for automated assembly compatibility

Applications

• Embedded systems requiring precise clock synchronization
• Communication modules needing stable frequency references
• Portable electronic devices utilizing low-power oscillators

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 4-SMD no-lead package dimensions align with your PCB footprint. Ensure the selected supply voltage matches the operational range defined in the official datasheet to guarantee reliable performance and longevity of the component.

Selection Notes

Select this model when a fixed frequency of 11.392 MHz is required with LVCMOS compatibility. Consider the 1.8V operating voltage and standby feature for power-sensitive designs. Evaluate the thermal characteristics and operating temperature range to ensure suitability for the intended environmental conditions. Compare package size constraints against available board space.

Part Context

This component belongs to the 18QHTF21 series of standard XO oscillators from Mercury Electronics. The series offers various frequencies within the LVCMOS logic family. The 'PD' suffix indicates the inclusion of a power-down control pin or functionality. These oscillators are part of Mercury's broader portfolio of frequency control products established since 1973.

Replacement Considerations

Direct substitutes must match the 11.392 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no-lead package. Verify pinout compatibility and electrical parameters such as jitter and phase noise. Consult manufacturer cross-reference lists for equivalent parts from other suppliers offering identical specifications.