18QHTF21-30.429-PD

Oscillators Overview

The 18QHTF21-30.429-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 30.429 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down (standby) function to reduce consumption when inactive. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component is suitable for applications requiring precise timing signals within low-voltage digital systems.

Oscillators Feature Summary

• Supports LVCMOS output logic for standard digital interfacing
• Includes standby mode capability via power-down function
• Utilizes a leadless SMD package for surface-mount assembly

Oscillators Applications

• General-purpose clock signal generation
• Low-voltage digital circuit timing
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system's power rails. Ensure the PCB footprint matches the 2.0x1.6mm 4-SMD no-lead package specifications to guarantee proper soldering and mechanical stability during assembly processes.

Oscillators Selection Notes

Select this component when a 30.429 MHz clock source is required for LVCMOS-compatible devices. Consider the 1.8V operating voltage constraint and the availability of a power-down control line if energy efficiency is a priority. Evaluate the physical space constraints to ensure the small 4-SMD package fits within the designated area on the printed circuit board layout.

Oscillators Part Context

This part belongs to the Mercury Electronics 18QHTF21 series of surface-mount oscillators. The series offers various frequencies and voltage options, all sharing a common compact form factor. The 'PD' suffix indicates the inclusion of a power-down feature, distinguishing it from standard continuous-operation variants within the same product family.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 series parts with identical pinout and package dimensions but different frequencies, such as 18QHTF21-51.200-PD or 18QHTF21-30.300-PD, provided the frequency difference is acceptable for the application.