18QHTF21-28.1475-PD

Oscillators Overview

The 18QHTF21-28.1475-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 28.1475 MHz with LVCMOS output logic. The device requires a 1.8V supply voltage and supports a standby power-down mode. It features a frequency stability of ±50ppm and functions within an operating temperature range of -40°C to 85°C. The component is housed in a compact 4-SMD, No Lead package.

Oscillators Feature Summary

• Supports standby power-down mode for energy efficiency
• Delivers LVCMOS output signal compatibility
• Operates on a single 1.8V supply voltage

Oscillators Applications

• Embedded systems requiring precise clock signals
• Consumer electronics with low power constraints
• Industrial control modules
• Communication equipment interfaces

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply rail can maintain stable voltage under all operating conditions. Ensure the PCB layout accommodates the 4-SMD no-lead package dimensions correctly to prevent soldering defects during assembly.

Oscillators Selection Notes

Select this component when a low-profile oscillator with LVCMOS outputs is required for 1.8V logic systems. Consider the ±50ppm stability limit for timing-sensitive applications. Evaluate the -40°C to 85°C temperature range against environmental conditions. Compare package size constraints with alternative surface-mount oscillators if space is limited.

Oscillators Part Context

This model belongs to Mercury Electronics' series of standard crystal oscillators designed for general-purpose timing applications. The manufacturer has extensive experience in quartz crystal production. The part number indicates specific frequency and package characteristics unique to this variant within their broader product portfolio.

Oscillators Replacement Considerations

Direct substitutes must match the 28.1475 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no-lead package. Verify pinout compatibility and thermal specifications before swapping manufacturers.