18QHTF21-2.51748-OE

Oscillators Overview

The 18QHTF21-2.51748-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 2.51748 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, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable control functionality
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• General clock signal generation in electronic circuits
• Timing reference for low-frequency digital systems
• Embedded devices requiring stable 1.8V power supply timing

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD package footprint matches your PCB layout constraints. Check for any specific enable pin configuration needs in your schematic.

Oscillators Selection Notes

Select this component when a 2.51748 MHz timing source is required with LVCMOS outputs. Consider the 1.8V operating voltage and enable/disable feature for power management strategies. Evaluate the 4-SMD package size for space-constrained designs. Compare performance metrics such as stability and current consumption against alternative oscillators if stricter specifications are needed.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronic. The series typically offers various frequencies and voltage options. The 'OE' suffix often denotes specific packaging or tape-and-reel configurations, though verification is required. This model provides a fixed frequency solution for timing applications.

Oscillators Replacement Considerations

Direct substitutes must match the 2.51748 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package. Verify pinout compatibility and electrical characteristics such as current consumption and stability. Cross-reference with other manufacturers' 4-pin SMD oscillators offering similar specifications.