18QHTF21-124.512-OE

Overview

The 18QHTF21-124.512-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind Co., Ltd. It operates at a fixed frequency of 124.512 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features an Enable/Disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Supports active enable and disable functionality for power management
• Utilizes LVCMOS output logic for digital interface compatibility
• Designed as a standard clock oscillator for precise timing applications

Applications

• General purpose clock generation in electronic circuits
• Timing reference for digital systems requiring 1.8V operation
• Embedded systems utilizing LVCMOS interfaces

Procurement Notes

Verify the specific operating temperature range 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 2.0x1.6mm footprint matches the PCB layout constraints. Cross-reference the datasheet for any specific soldering profile recommendations to ensure component reliability during assembly processes.

Selection Notes

Select this component when a 124.512 MHz clock signal is required with low voltage operation. The LVCMOS output ensures compatibility with standard digital logic families. Consider the physical size constraints due to the small SMD package. Verify that the enable pin functionality meets the system's power cycling or standby requirements. Ensure the manufacturer's specifications for frequency stability meet the application's tolerance needs.

Part Context

Mercury Electronic Ind Co., Ltd is a quartz crystal manufacturer with a history dating back several decades, recognized as a pioneer in the Taiwan quartz industry. The company produces frequency control products including crystals and oscillators. This part belongs to their series of surface-mount clock oscillators designed for modern electronic devices requiring precise timing signals.

Replacement Considerations

Direct substitutes must match the 124.512 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify equivalent electrical characteristics and pinout compatibility before substitution.