18QHTF21-2.1472-PD

Oscillators Overview

The 18QHTF21-2.1472-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 2.1472 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features a standby power-down mode for energy efficiency. It is housed in a compact 4-SMD, no-lead package designed for surface-mount assembly. The maximum supply current is specified at 21mA, supporting low-power applications.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby power-down functionality to reduce consumption
• Utilizes a base crystal resonator for frequency stability

Oscillators Applications

• Battery-powered portable devices requiring low current draw
• Digital circuits utilizing LVCMOS signaling standards
• Compact electronic systems with surface-mount constraints

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 no-lead package dimensions fit within your PCB layout constraints. Check for any specific handling instructions regarding electrostatic discharge protection during installation.

Oscillators Selection Notes

Select this component when a precise 2.1472 MHz clock signal is required with minimal power consumption. The LVCMOS output ensures compatibility with standard digital logic families. Consider the 1.8V operating voltage if your system does not support higher voltage levels. The small form factor makes it suitable for space-constrained designs where traditional through-hole oscillators cannot be used.

Oscillators Part Context

Mercury Electronic Ind. Co., Ltd. is a Taiwan-based manufacturer specializing in frequency-control products, including quartz crystals and oscillators. This company has a long history in the industry, focusing on providing reliable timing solutions. The 18QHTF21 series represents their line of surface-mount crystal oscillators designed for modern electronic applications requiring compact size and efficient power usage.

Oscillators Replacement Considerations

Other models in the 18QHTF21 series, such as 18QHTF21-12.300-PD or 18QHTF21-18.1059-PD, share similar packaging and electrical characteristics but operate at different frequencies. When substituting, ensure the replacement part matches the required frequency and output logic type. Verify that the supply voltage and current specifications are compatible with the existing circuit design.