18QHTF21-11.9808-OE

Overview

The 18QHTF21-11.9808-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 11.9808 MHz and utilizes LVCMOS output logic. The component supports a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD surface-mount package with dimensions of 2.0mm x 1.6mm. This oscillator is designed for timing applications requiring precise frequency generation within the specified voltage and form factor constraints.

Feature Summary

• Integrates enable/disable functionality for power management
• Utilizes LVCMOS output logic for digital interface compatibility
• Compact 4-SMD surface-mount design for space-constrained layouts

Applications

• General purpose digital timing circuits
• Embedded systems requiring precise clock references
• Consumer electronics with low voltage requirements

Procurement Notes

Verify the exact electrical specifications, including frequency stability and load capacitance, directly from the official product datasheet before integration. Ensure the 1.8V supply voltage aligns with the target system's power domain. Confirm the 4-SMD footprint matches the PCB layout guidelines provided by the manufacturer to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a 11.9808 MHz clock signal is required with LVCMOS outputs. The 1.8V operating voltage makes it suitable for modern low-power digital designs. The enable pin allows for dynamic power control. Consider the small 2.0x1.6mm package size for high-density board designs where space is limited compared to larger oscillator packages.

Part Context

This part belongs to the QHTF series of standard crystal oscillators from Mercury Electronic Ind. Co., Ltd. The series offers various frequencies and voltage options in a consistent 4-SMD form factor. Mercury Electronics is a Taiwan-based manufacturer specializing in quartz crystals and oscillators, providing timing solutions for industrial and consumer markets since 1973.

Replacement Considerations

Check for parts with identical 11.9808 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm footprint. Verify that substitute components support the same enable/disable control logic and meet the required temperature range specifications.