18QHTF21-124.800-OE

Overview

The 18QHTF21-124.800-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind., Co., Ltd. It operates at a fixed frequency of 124.8 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, functioning at a supply voltage of 1.8V. It features an integrated enable/disable control pin for power management flexibility. The component is housed in a compact 4-SMD, no-lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• Supports active high or low enable/disable functionality for power optimization
• Provides stable clock signals via LVCMOS interface
• Designed for operation within industrial temperature ranges

Applications

• High-speed digital signal processing systems
• Communication equipment requiring precise timing references
• Embedded computing modules

Procurement Notes

Verify the specific suffix 'OE' against official datasheets to confirm it denotes the correct enable/disable variant and packaging type. Ensure compatibility with 1.8V logic levels in the target design. Confirm that the 4-SMD no-lead footprint matches the PCB layout requirements before finalizing procurement orders.

Selection Notes

Select this model when a 124.8 MHz clock source is required with low voltage operation. Consider the enable/disable feature if system power management necessitates clock gating. Verify that the LVCMOS output swing meets the input requirements of the downstream components in the circuit design.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options. The 124.8 MHz variant serves as a specific timing solution for applications needing this exact harmonic or sub-harmonic frequency reference.

Replacement Considerations

Check for direct substitutes such as the 18QHTF21-124.800-PD, which shares the same frequency and form factor but may differ in packaging strip configuration. Verify electrical parameters match exactly before substitution.