18QHTF21-101.2656-OE

Overview

The 18QHTF21-101.2656-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 101.2656 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable and disable control functionality
• Surface-mount construction in a leadless SMD package

Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded system timing references

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this component when a stable 101.2656 MHz reference is required for LVCMOS-compatible digital circuits. Consider the 1.8V operating voltage constraint and the need for active enable/disable control. Evaluate the thermal performance and size constraints of the 4-SMD package relative to the available board space and environmental conditions of the final application.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The manufacturer has decades of experience in Taiwan's crystal industry. This series typically offers standard oscillators with various frequencies and supply voltages, catering to general-purpose electronic timing needs across consumer and industrial electronics sectors.

Replacement Considerations

Direct substitutes include other 101.2656 MHz LVCMOS oscillators with identical 1.8V operation and 4-SMD no-lead footprints. Verify pinout compatibility and electrical characteristics such as phase noise and jitter before substitution. Alternative models from different manufacturers must match the physical dimensions and enable/disable logic polarity.