18QHTF21-25.0125-OE

Oscillators Overview

The 18QHTF21-25.0125-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind., Co., Ltd. It operates at a frequency of 25.0125 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes enable/disable control capabilities. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable functionality for power management
• Surface-mount 4-SMD no-lead package design

Oscillators Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Oscillators Procurement Notes

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

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS outputs. The enable/disable feature supports systems needing active power control. Consider the 4-SMD form factor for space-constrained designs. Validate that the 25.0125 MHz frequency meets the exact timing needs of the application without requiring external dividers or multipliers.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, which provides standard frequency control solutions. The '18' prefix typically indicates the 1.8V supply voltage, while 'QHTF' denotes the specific series characteristics. The '-OE' suffix identifies the specific variant within the product line, distinguishing it from other frequency options like 25.020 MHz or 37.888 MHz.

Oscillators Replacement Considerations

Direct substitutes include other 25.0125 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and electrical parameters such as phase noise and jitter if replacing with different manufacturers. Ensure the replacement supports the same enable/disable control scheme.