18QHTF21-4.992-PD

Oscillators Overview

The 18QHTF21-4.992-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fundamental frequency of 4.992 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features a power-down mode to reduce energy consumption when the oscillator is not in active use. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly processes.

Oscillators Feature Summary

• LVCMOS output interface for digital compatibility
• Integrated power-down functionality for standby operation
• Compact 4-SMD no-lead surface mount packaging

Oscillators Applications

• General-purpose clock signal generation
• Low-voltage digital circuit timing
• Portable electronic devices requiring power efficiency

Oscillators Procurement Notes

Verify the specific ordering suffix and manufacturer part number against official Mercury Electronics documentation before purchase. Ensure that the required operating temperature range and load capacitance specifications match the target design requirements. Confirm availability through authorized distributors to avoid counterfeit components.

Oscillators Selection Notes

Select this component when a stable 4.992 MHz clock source is needed with minimal power consumption. The 1.8V supply requirement makes it suitable for modern low-power systems. Consider the small form factor for space-constrained PCB layouts. Validate electrical parameters against the specific datasheet version.

Oscillators Part Context

This model belongs to the Mercury Electronics 18QHTF series of standard crystal oscillators. The series offers various frequencies and voltage options. Mercury Electronics is a Taiwan-based supplier specializing in quartz crystals and timing components. The 18QHTF series is designed for general electronic applications requiring reliable frequency control.

Oscillators Replacement Considerations

Check for direct substitutes within the same series, such as different frequency variants like 18QHTF21-51.200-PD, if frequency flexibility is allowed. Verify pinout and electrical compatibility before substituting with other manufacturers' LVCMOS oscillators.