18QHTF21-100.050-PD

Overview

The 18QHTF21-100.050-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 100.05 MHz and utilizes LVCMOS output logic. The device is designed for surface mount assembly in a compact 4-SMD, No Lead package with dimensions of 2.00mm x 1.60mm. It supports a supply voltage of 1.8V and includes a standby or power-down function to manage energy consumption during inactive periods.

Feature Summary

• Compact 4-SMD no-lead surface mount package
• LVCMOS output logic interface
• Integrated standby and power-down functionality

Applications

• General purpose clock signal generation
• Digital system timing references
• Embedded electronics requiring low profile components

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 power rails. Ensure the PCB footprint matches the 2.00mm x 1.60mm SMD package dimensions to guarantee proper mechanical fit and electrical connectivity.

Selection Notes

Select this component when a precise 100.05 MHz reference is required in space-constrained designs. The choice depends on the compatibility of the LVCMOS output with downstream logic levels and the necessity of a power-down feature for thermal or efficiency management. Consider the operating temperature range specifications relative to the intended environment.

Part Context

This part belongs to the 18QHTF21 series of surface mount oscillators from Mercury Electronic. The series typically offers various frequencies within a small form factor. The 'PD' suffix indicates the inclusion of power-down capability. This model represents a specific frequency variant within the broader family of quartz-based timing solutions provided by the manufacturer.

Replacement Considerations

Direct substitutes include other 18QHTF21 series variants with identical pinout and package dimensions but different frequencies, such as 18QHTF21-51.200-PD or 18QHTF21-18.1059-PD, provided the frequency difference is acceptable for the application.