18QHTF21-2.51748-PD

Oscillators Overview

The 18QHTF21-2.51748-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 2.51748 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and features a standby mode for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component is designed for timing applications requiring precise clock signals in space-constrained electronic systems.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V for energy efficiency
• Includes standby functionality to reduce power consumption during idle periods
• Utilizes LVCMOS output logic for digital interface compatibility
• Features a miniature surface-mount package for high-density board layouts

Oscillators Applications

• Battery-powered portable electronic devices
• Compact consumer electronics requiring minimal footprint
• Digital signal processing circuits
• Communication modules with strict size constraints

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD No Lead package dimensions fit within your PCB silkscreen and assembly guidelines. Check for any specific handling instructions regarding electrostatic discharge protection during installation.

Oscillators Selection Notes

Choose this oscillator when a low-frequency, small-form-factor timing source is required. The 1.8V specification makes it suitable for modern low-power digital logic families. Consider the standby feature if power conservation is critical for the application. Compare the 2.0x1.6mm package size against available board space to ensure mechanical compatibility with other components.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic, which specializes in quartz-based frequency control products. The manufacturer has extensive experience in producing crystals and oscillators since 1973. The series typically offers various frequencies and package options to meet diverse timing needs in industrial and consumer markets.

Oscillators Replacement Considerations

Direct substitutes must match the 2.51748 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify equivalent electrical parameters such as phase noise and stability before substitution. Consult official cross-reference lists from Mercury Electronic or authorized distributors for validated alternatives.