18QHTF21-12.343583-PD

Overview

The 18QHTF21-12.343583-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 12.343583 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features a standby mode for power down functionality. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications.

Feature Summary

• Supports low-voltage operation with 1.8V supply requirement
• Includes standby capability for power management
• Provides LVCMOS output signal compatibility

Applications

• Digital clock generation circuits
• Microcontroller system timing references
• Communication interface synchronization

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V operating voltage aligns with the system power rails. Ensure the 4-SMD no-lead package dimensions fit within the designated PCB footprint area to avoid assembly conflicts.

Selection Notes

Select this component when a precise 12.343583 MHz reference is required for LVCMOS-compatible digital logic. Consider the 1.8V supply constraint and standby feature for power-sensitive designs. Evaluate the 4-SMD package size against available board space constraints during the initial layout phase.

Part Context

This part belongs to the Mercury Electronics 18QHTF21 series of standard crystal oscillators. The series offers various frequencies with consistent LVCMOS outputs and 1.8V operation. The manufacturer specializes in quartz crystals and frequency control products, providing reliable timing solutions for electronic systems.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants from Mercury Electronics with matching 1.8V LVCMOS specifications. Cross-brand replacements must match the 12.343583 MHz frequency, 4-SMD package, and 1.8V supply voltage to ensure functional compatibility.