18QHTF21-26.99999-PD

Oscillators Overview

The 18QHTF21-26.99999-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 26.99999 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features a Standby mode that allows for power-down functionality to conserve energy 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

• Supports LVCMOS output logic for digital interface compatibility
• Includes Standby mode capability for power management
• Designed for low-voltage operation at 1.8V

Oscillators Applications

• General-purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Ensure the 1.8V supply voltage aligns with the system power rails. Confirm that the 4-SMD No Lead package dimensions fit within the available PCB footprint constraints. Cross-reference the part number suffix PD with manufacturer documentation to confirm any specific ordering or packaging variations.

Oscillators Selection Notes

Select this component when a precise 26.99999 MHz clock source is required for LVCMOS-compatible digital circuits. The choice is driven by the need for low-power operation via the standby feature and the requirement for a small form factor provided by the SMD package. Consider the operating temperature range and stability specifications if the environment involves thermal variation.

Oscillators Part Context

This model belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The series typically offers various frequencies and voltage levels in compact packages. Mercury Electronics has a history of manufacturing quartz crystals and oscillators, positioning itself as a provider of precision timing components for electronic systems.

Oscillators Replacement Considerations

Direct replacements must match the 26.99999 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter if critical to the application.